.jpg){kind=small}
133. Grayson Dao Hwee Wong, Zhan Xu, Weiliang Gan, Calvin Ching Ian Ang, Wai Cheung Law, Jiaxuan Tang, Wen Zhang, Ping Kwan Johnny Wong, Xiaojiang Yu, Andrew Thye Shen Wee, Chim Seng Seet, Wen Siang Lew*, "Strain-mediated spin-orbit torque enhancement in Pt/Co on flexible substrate", submitted
132. Tianli Jin, Wai Cheung Law, Durgesh Kumar, Feilong Luo, Qi Ying Wong, Gerard Lim, Xuan Wang, Wen Siang Lew, and S. Piramanayagam, "Enhanced spin‒orbit torque efficiency in Pt/Co/Ho heterostructures via inserting Ho layer", APL Materials, accepted.
131. Z. Xu, G. D. H. Wong, J. Tang, E. Liu, W. L. Gan, F. Xu, and W. S. Lew*, "Large spin-orbit torque efficiency enhanced by nitrogen incorporation in Pt films", submitted.
130. D.J.J. Loy, K.Q. Hou, M.Y. Chee, S. Chakrabarti, P.A. Dananjaya, S.C.W. Chow, E.H. Toh and W.S. Lew*, "Filament Evolution and Compact Modelling of Multi-level Resistance HfO2-based RRAM Devices", submitted.
129. B. Coester, G. D. H. Wong, Z. Xu, J. Tang, W. L. Gan, and W. S. Lew*, "Enhanced spin Hall conductivity in tungsten-copper alloys", Journal of Magnetism and Magnetic Materials, accepted.
128. C.C.I. Ang, W. L.Gan, and W. S. Lew*, "Electrical control of skyrmion density via skyrmion-stripe transformation", Physical Review Applied, accepted.
127. D.J.J. Loy, P.A. Dananjaya, S. Chakrabarti, Kuan Hong Tan, Samuel Chow Chen Wai, Eng Huat Toh and Wen Siang Lew*, "Oxygen Vacancy Density Dependence with Hopping Conduction Mechanism in Multi-Level Switching Behavior of HfO2-Based RRAM Devices", ACS Applied Electronic Materials, 2, 3160 (2020); doi.org/10.1021/acsaelm.0c00515.
126. G. J. Lim, W. L. Gan, and W. S. Lew*, "Effect of Seed and Interlayer Pt on SOT in Co/Pt Multilayers", Journal of Physics D: Applied Physics, 53, 505002 (2020); doi.org/10.1088/1361-6463/abacef
125. Calvin W.Y. Koh, H.Q. Tan, K.W. Ang, S.Y. Park, W.S. Lew, James C.L. Lee, "Standardizing Monte Carlo Simulation parameters for a reproducible linear energy transfer", British Journal of Radiology, 93, 20200122 (2020); doi.org/10.1259/bjr.20200122
124. Z. Xu, G. D. H. Wong, J. Tang, E. Liu, W. L. Gan, F. Xu, and W. S. Lew*, "Giant Spin Hall Effect in Tb Doped Cu Thin Films", ACS Applied Materials and Interfaces, 12, 32898 (2020); doi.org/10.1021/acsami.0c07441
123. Mangyuan Ma, Calvin Ang, Yong Li, Zizhao Pan, Weiliang Gan, Wen Siang Lew and Fusheng Ma* , "Enhancement of Zero-Field Skyrmion Density in [Pt/Co/Fe/Ir]2 Multilayers at Room Temperature by FORC", Journal of Applied Physics, 127, 223901 (2020); doi.org/10.1063/5.0004432
122. G. J. Lim, W. L. Gan, W. C. Law, C. Murapaka, and W. S. Lew*, "Spin-Orbit Torque Driven Analog-Like Behaviour in Co/Pt Hall Cross Structures at Elevated Temperatures", Journal of Magnetism and Magnetic Materials, 514, 167201 (2020). ; doi.org/10.1016/j.jmmm.2020.167201
121. G.D.H. Wong, W. C. Law, F.N. Tan, W. L. Gan, C. C. I. Ang, Z. Xu, C.S. Seet, and W. S. Lew*, "Thermal behavior of spin-current generation in PtxCu1-x devices characterized through spin-torque ferromagnetic resonance", Scientific Reports, 10:9631 (2020); doi.org/10.1038/s41598-020-66762-8
120. Dayanand Kumar, Umesh Chand, Wen Siang Lew, and Tseung-Yuen Tseng, "ZrN Based Flexible Resistive Switching Memory", IEEE Transactions on Electron Devices, 41, 705(2020); DOI:10.1109/LED.2020.2981529
119. Nagaraj Lakshmana Prabhu, Desmond Loy Jia Jun, Putu Andhita Dananjaya, Wen Siang Lew, Eng Huat Toh, Nagarajan Raghavan, "Exploring the Impact of Variability in Resistance Distributions of RRAM on the Prediction Accuracy of Deep Learning Neural Networks", Electronics, 9, 414(2020); doi.org/10.3390/electronics9030414
118. Govind Narasimman, Joydeep Basu, Pankaj Sethi, Sachin Krishna, Chen Yi , Wen Siang Lew, and Arindam Basu, "A 72 µW Readout circuit in 65nm CMOS with Successive Approximation based Thresholding for Domain Wall Magnet based Random Number Generator", IEEE Sensors Journal, published online (2020); DOI: 10.1109/JSEN.2020.2980021
117. G. J. Lim, D. Chua, W. L. Gan, C. Murapaka, and W. S. Lew*, "Programmable Spin-Orbit Torque Logic Device with Integrated Bipolar Bias Field for Chirality Control", Advanced Electronics Materials, 1901090 (2020); doi.org/10.1002/aelm.201901090
116. Dayanand Kumar, Umesh Chand, Wen Siang Lew, and Tseung-Yuen Tseng, "High-Performance TiN/Al₂O₃/ZnO/Al₂O₃/TiN Flexible RRAM Device With High Bending Condition", IEEE Transactions on Electron Devices, 67, 493 (2020); DOI: 10.1109/TED.2019.2959883.
115. D. W. Wong, W. L. Gan, Y.K. Teo and W. S. Lew*, "Heating Efficiency of Triple Vortex State Cylindrical Magnetic Nanoparticles", Nanoscale Research Letters,14, 376 (2019); DOI:10.1186/s11671-019-3169-6
114. Yong Li, Qiyuan Feng, Sihua Li, Ke Huang, Weiliang Gan, Haibiao Zhou, Xiangjun Jin, Liang Cao, Xiao Renshaw Wang, Fusheng Ma* Qingyou Lu* and Wen Siang Lew*, "An Artificial Skyrmion Platform with Robust Tunability in Synthetic Antiferromagnetic Multilayers", Advanced Functional Materials, 1907140 (2019); doi.org/10.1002/adfm.201907140
113. P. A. Dananjaya, D. J. J. Loy, S. C. W. Chow, W.S. Lew*, "Unidirectional threshold switching induced by Cu migration with high selectivity and ultralow OFF current under gradual electroforming treatment", ACS Applied Electronic Materials, 1, 2076 (2019). DOI: 10.1021/acsaelm.9b00446
112. Tianli Jin, Weiliang Gan, Funan Tan, Nicolo Sernicola, Wen Siang Lew, S. N. Piramanayagam, "Synaptic element for neuromorphic computing using a magnetic domain wall device with synthetic pinning sites", Journal of Physics D: Applied Physics, 52, 445001 (2019); doi.org/10.1088/1361-6463/ab35b7
111. F. L. Luo, Q.Y. Wong, S.H. Li, F. N. Tan, G. J. Lim, X. Wang, and W.S. Lew*, "Dependence of spin-orbit torque effective fields on magnetization uniformity in Ta/Co/Pt structure", Scientific Reports, 9, 10776 (2019); doi.org/10.1038/s41598-019-47125-4
110. Weinan Lin, Lei Li, Fatih Doğa, Changjian Li, H. Rotella, Bangmin Zhang, Yangyang Li, Wen Siang Lew, Shijie Wang, Wilfrid Prellier, Stephen J. Pennycook, Jingsheng Chen, Zhicheng Zhong, Aurelien Manchon, and Tom Wu, "Interface-based tuning of Rashba spin-orbit interaction in asymmetric oxide heterostructures with 3d electrons", Nature Communications, 10, 3052 (2019); doi.org/10.1038/s41467-019-10961-z
109. F.N. Tan, G.J. Lim, T.L. Jin, H.X. Liu, F. Poh, and W.S. Lew*, "Electric field control on single and double Pt/Co heterostructure for enhanced thermal stability", Journal of Magnetism and Magnetic Materials, 490, 165448 (2019); doi.org/10.1016/j.jmmm.2019.165448
108. Tianli Jin, Funan Tan, Calvin Ang Ching Ian, Weiliang Gan, Jiangwei Cao, Wen Siang Lew, S. N. Piramanayagam, "Tilted magnetisation for domain wall pinning in racetrack memory", Journal of Magnetism and Magnetic Materials, 489, 165410 (2019).
107. F.N. Tan, W.L. Gan, C.C.I. Ang, G.D.H. Wong, H.X. Liu, F. Poh, D. Shum, and W.S. Lew*, "High velocity domain wall propagation using voltage controlled magnetic anisotropy", Scientific Reports, 9, 7369 (2019); doi.org/10.1038/s41598-019-43843-x
106. H.Q. Tan, Calvin W.Y. Koh, Lloyd K.R. Tan, J.H. Phua, K.W. Ang, S.Y. Park, W.S. Lew, James C.L. Lee, "Dependence of LET on material and its impact on current RBE model", Physics in Medicine and Biology, 64, 135022 (2019).
105. F.N. Tan, Q.Y. Wong, W.L. Gan, S.H. Li, H.X. Liu, F. Poh, and W.S. Lew*,"Electric field control for energy efficient domain wall injection", Journal of Magnetism and Magnetic Materials, 485, 174 (2019); doi.org/10.1016/j.jmmm.2019.04.069
104. C.C.I. Ang, W. L.Gan, and W. S. Lew*, "Bilayer skyrmion dynamics on a magnetic anisotropy gradient", New Journal of Physics, 21, 043006 (2019); doi.org/10.1088/1367-2630/ab1171
103. Q. Y. Wong, C. Murapaka, W.C Law, W.L. Gan, G.J. Lim, W.S. Lew*, "Enhanced Spin-orbit Torques in Rare Earth Pt/[CoNi]2/Co/Tb systems", Physical Review Applied, 11, 024057 (2019); doi.org/10.1103/PhysRevApplied.11.024057
102. D. Kumar, Tianli Jin, S. Al Risi, S. Sbiaa, Wen Siang Lew, SN Piramanayagam, "Domain Wall Motion Control for Racetrack Memory Applications", IEEE Transactions on Magnetics, 55, Issue: 3, 2300708 (2019); DOI: 10.1109/TMAG.2018.2876622
101. Wai Cheung Law, Tianli Jin, Xin Tong Zhu, Ramesh Rao Nistala, Naganivetha Thiyagarajah, Chim Seng Seet , and Wen Siang Lew*, "Perpendicular magnetic anisotropy in Co/Pt multilayers induced by hcp-Ho at 400 °C", Journal of Magnetism and Magnetic Materials, 477, 124 (2019).
100. S. Krishnia, P. Sethi, W. L. Gan, Q. Y. Wong, G.J. Lim, and W.S. Lew*, "Current-induced spin-orbit effective field modulations in synthetic antiferromagnetic structures”, Journal of Magnetism and Magnetic Materials, 475, 327 (2019).
99. Tianli Jin, Weiliang Gan, Chuang Ma, Rudolf Schaefer, Funan Tan, Wen Siang Lew, Ivan Soldatov, Xiaoxi Liu, Wai Cheung Law, SN Piramanayagam, "Nanoscale modification of magnetic properties for effective domain wall pinning", Journal of Magnetism and Magnetic Materials, 475, 70 (2019).
98. Yong Li, Xiangjun Jin, Pengfei Pan, Fu Nan Tan, Wen Siang Lew, Fusheng Ma, "Temperature-dependent interlayer exchange coupling strength in synthetic antiferromagnetic [Pt/Co]2/Ru/[Co/Pt]4multilayers", Chinese Physics B, 27, 127502 (2018); DOI: 10.1088/1674-1056/27/12/127502
97. S. H. Li, G. J. Lim, W. L. Gan, W.C. Law, F.N. Tan and W.S. Lew*, "Tuning the spin-orbit torque effective fields by varying Pt insertion layer thickness in perpendicularly magnetized Pt/Co/Pt(t)/Ta structures", Journal of Magnetism and Magnetic Materials, 473, 394 (2018); doi.org/10.1016/j.jmmm.2018.10.104
96. D. J. J. Loy, P. A. Dananjaya, X. L. Hong, D. P. Shum, W.S. Lew*, "Conduction Mechanisms on High Retention Annealed MgO-based Resistive Switching Memory Devices", Scientific Reports, 8, 14774 (2018).
95. R.C.X. Soh, K.W. Ang, W.S. Lew, J.C.L. Lee, "A depth dose study between AAA, AXB algorithm and 6X FFF beam against Monte Carlo simulation using AIP CT of a 4D dataset from a moving phantom", Reports of Practical Oncology and Radiotherapy, 23, 413 (2018).
94. W.C. Law, T. Tahmasebi, F.N. Tan, T.L Jin, W.L. Gan, R. R. Nistala, X.T. Zhu, Z.Q. Mo, H.W. Teo, C. S. Seet, A. See, S.N. Piramanayagam, and W. S. Lew*, "High temperature Ferromagnetic Resonance study on pMTJ stacks with diffusion barrier layers", Journal of Physics D: Applied Physics, 51, 405001 (2018).
93. F.N. Tan, G.J. Lim, W.C. Law, F.L. Luo, H.X. Liu, F. Poh, D. Shum, and W.S. Lew*, "Electric Field control on Gated Pt/Co/SiO2 Heterostructure with Insulating Polymer", Journal of Physics D: Applied Physics, 51, 365001 (2018).
92. Tianli Jin, Durgesh Kumar, Weiliang Gan, Mojtaba Ranjbar, Rachid Sbiaa, Feilong Luo, Xiaoxi Liu, Wen Siang Lew, and S. Piramanayagam, "Nanoscale compositional modification in Co/Pd multilayers for controllable domain wall pinning in racetrack memory", Physica Status Solidi (RRL), 1800197 (2018).
91. Jose Martinez, Cong Son Ho, Zhuo Bin Siu, Mansoor Jalil, Wen Siang Lew, and Wei Liang Gan, "Theory of current-induced skyrmion dynamics close to a boundary", Journal of Magnetism and Magnetic Materials, 465, 685 (2018).
90. D. W. Wong, W. L. Gan, Y.K. Teo and W. S. Lew*, "Interplay of cell death signalling pathways mediated by alternating magnetic field gradient", Cell Death Discovery, 4, 49 (2018)
89. Q. Y. Wong, W.L. Gan, F.L Luo, G.J. Lim, C.C.I. Ang, F.N. Tan, W.C Law, W.S. Lew*, "In-Situ Kerr harmonic measurement in determining current-induced effective fields in MgO/CoFeB/Ta", Journal of Physics D: Applied Physics, 51, 115004 (2018).
88. X. L. Hong, D. J. J. Loy, P. A. Dananjaya, F.N. Tan, C.M. Ng, and W.S. Lew*, "Oxide-based RRAM materials for neuromorphic computing", Journal of Materials Science, 53, 8720 (20 18), doi.org/10.1007/s10853-018-2134-6.
87. Jiangwei Cao*, Yifei Chen, Tianli Jin, Weiliang Gan, Ying Wang, Yuqiang Zheng, Hua Lv, Susana Cardoso, Dan Wei, Wen Siang Lew*, "Spin orbit torques induced magnetization reversal through asymmetric domain wall propagation in Ta/CoFeB/MgO structures", Scientific Reports, 8, 1355 (2018); doi.org/10.1038/s41598-018-19927-5
86. W. L. Gan, S. Krishnia, and W.S. Lew*, "Efficient in-line skyrmion injection method for synthetic antiferromagnetic systems", New Journal of Physics, 20,013029 (2018); doi.org/10.1088/1367-2630/aaa113
85. X. Wang, W. L. Gan, J. C. Martinez, F. N. Tan, M. B. A. Jalil and, W.S. Lew*, "Efficient skyrmion transport mediated by voltage controlled magnetic anisotropy gradient", Nanoscale, 10, 733-740 (2018), doi.org/10.1039/C7NR06482A
84. Tianli Jin, Mojtaba Ranjbar, Shikun He, Wai Cheung Law, Rachid Sbiaa, Tiejun Zhou, Wen Siang Lew, X.X. Liu, and S. Piramanayagam, "Tuning magnetic properties for domain wall pinning via localized metal diffusion", Scientific Reports, 7, 16208 (2017).
83. S. Krishnia, P. Sethi, W. L. Gan, F. N. Kholid, M. Ramu, T. S. Herng, J. Ding, I. Purnama, and W.S. Lew*, "Role of RKKY torque on domain wall motion in synthetic antiferromagnetic nanowires with opposite spin Hall angles”, Scientific Reports, 7, 11715 (2017); doi.org/10.1038/s41598-017-11733-9
82. D. W. Wong, W. L. Gan, N. Liu and W. S. Lew*, "Magneto-actuated cell apoptosis by biaxial pulsed magnetic field", Scientific Reports 7, 10919 (2017); doi.org/10.1038/s41598-017-11279-w
81. Christian Engel, Sarjoosing Goolaup, Han Keng Teoh, Wen Siang Lew*, "Effect of geometrical modulation on pMTJ magnetization reversal", IEEE Transactions on Magnetics, Volume: 53, No.12, 7100707 (2017).
80. Ning Liu, Jing Xu, Hong-Jie An, Dinh-Tuan Phan, Michinao Hashimoto，Wen Siang Lew*, "Direct Spraying Method for Fabrication of Paper-based Microfluidic Sensors", Journal of Micromechanics and Microengineering, 27, 104001 (2017).
79. Christian Engel, Sarjoosing Goolaup, Feilong Luo, and Wen Siang Lew*, "Quantitative characterization of spin-orbit torques in Pt/Co/Pt/Co/Ta/BTO heterostructure on the magnetization azimuthal angle dependence", Physical Review B, 96, 054407 (2017); doi.org/10.1103/PhysRevB.96.054407
78. Ning Liu, Dinh-Tuan Phan，Wen Siang Lew*, "An enclosed paper microfluidic chip as a sample pre-concentrator based on ion concentration polarization", IEEE Transactions on Biomedical Circuits and Systems, Volume: 11, Issue:6, 1392-1399 (December 2017) DOI: 10.1109/TBCAS.2017.2727064
77. P. Sethi, S. Krishnia, W. L. Gan, F. N. Kholid, F.N. Tan, M. Ramu and W. S. Lew*, "Bi-directional high speed domain wall motion in perpendicular magnetic anisotropy Co/Pt double stack nanowires”, Scientific Reports, 7, 4964 (2017); doi.org/10.1038/s41598-017-05409-7
76. J.S. Kwon, S. Goolaup, W.L. Gan, C. H. Chang*, Kaushik Roy, and W.S. Lew*, "Asymmetrical domain wall propagation in bifurcated PMA wire structure due to the Dzyaloshinskii-Moriya interaction", Applied Physics Letters, 110, 232402 (2017); doi.org/10.1063/1.4984750
75. Christian Engel, Sarjoosing Goolaup, Feilong Luo, and Wen Siang Lew*, "Characterizing angular dependence of spin-orbit torque effective fields in Pt/(Co/Ni)2/IrMn structure", IEEE Transaction on Magnetics, 53 Issue: 11, 1400604 (2017), DOI: 10.1109/TMAG.2017.2704520
74. Feilong Luo, Sarjoosing Goolaup, Wai Cheung Law, Sihua Li, Funan Tan, Christian Engel, Tiejun Zhou, Wen Siang Lew*, "Simultaneous determination of effective spin-orbit torque fields in magnetic structures with in-plane anisotropy", Physical Review B, 95, 174415 (2017); doi.org/10.1103/PhysRevB.95.174415
73. M. Ramu, S. Goolaup, S. Krishnia, G. J. Lim, and W. S. Lew*, "Spin orbit torque induced asymmetric depinning of chiral Néel domain wall in Co/Ni heterostructures", Applied Physics Letters, 110, 162402 (2017); doi.org/10.1063/1.4980120
72. Christian Engel, Sarjoosing Goolaup, Feilong Luo, Weiliang Gan, and Wen Siang Lew*, "Spin-orbit torque induced magnetization anisotropy modulation in Pt/(Co/Ni)4/Co/IrMn heterostructure", Journal of Applied Physics, 121, 143902 (2017); doi.org/10.1063/1.4980108
71. Sihua Li, Sarjoosing Goolaup, Jaesuk Kwon, Feilong Luo, Christian Engel, Weiliang Gan and Wen Siang Lew*, "Deterministic spin orbit torque induced magnetization reversal in Pt/[Co/Ni]2/Ta structure", Scientific Reports, 7, 972(2017); doi.org/10.1038/s41598-017-01079-7
70. R.C.X. Soh, L.K.R. Tan, M.S.L. Goh, S. Yani, F. Haryanto, W.S. Lew, J.C.L. Lee, "A gamma analysis approach to determine optimal parameters for Monte Carlo simulation of 6MV Varian Clinac iX photon beam", Journal of Health Science, 5, 36 (2017).
69. Y.P . Liu, W.S. Lew, and Z.W. Liu, "Observation of anomalous resistance behaviour in bilayer graphene", Nanoscale Research Letters, 12, 48 (2017).
68. H. K. Teoh, S. Goolaup, and W. S. Lew*, "Dzyaloshinskii-Moriya interaction induced domain wall de-pinning anomaly in notched nanowire with perpendicular anisotropy", Journal of Physics D: Applied Physics, 50, 015004 (2017).
67. P. Sethi, S. Krishnia, S. H. Li, and W. S. Lew*, "Modulation of spin-orbit torque efficiency by thickness control of heavy metal layers in Co/Pt multilayers”, Journal of Magnetism and Magnetic Materials, 426, 497(2017).
66. J.S. Kwon, S. Goolaup, C. H. Chang, Kaushik Roy, and W.S. Lew*, "Cyclic resistance change in perpendicularly magnetized Co/Ni nanowire induced by current pulse injection", Current Applied Physics, 17, 98 (2017).
65. R.C.X. Soh, L.K.R. Tan, M.S.L. Goh, S. Yani, F. Haryanto, W.S. Lew, J.C.L. Lee, "1D gamma analysis on the effect of mean electron energy, FWHM and xy jaws thickness for small fields", Medical Physics International Journal, 4, No.2, 157 (2016).
64. Xinghua Wang, Zhaomeng Wang, Vijaykumar B. Varma, Zhiping Wang, Ayan Ray, Wen Siang Lew, Raju V. Ramanujan, “Instability-induced mixing of ferrofluids in uniform magnetic fields", IEEE Magnetics Letters, 7, 2108305 (2016).
63. Fusheng Ma, C. Reichhardt, Weiliang Gan, C. J. Olson Reichhardt, and Wen Siang Lew*, "Emergent geometric frustration of artificial magnetic skyrmion crystals", Physical Review B, 94, 144405 (2016); doi.org/10.1103/PhysRevB.94.144405
62. Qi Ying Wong, Ning Liu, Cheng-Gee Koh, Hoi-Yeung Li and Wen Siang Lew*, "Isolation of magnetically tagged cancer cell through an integrated magnetofluidic device”, Microfluidics and Nanofluidics, 20:139 (2016).
61. F. L. Luo, S.H. Li, S. Goolaup, G. J. Lim, F. N. Tan, C. Engel, S. F. Zhang, F. S. Ma, T. J. Zhou, and W.S. Lew*, "Measuring the field-like term of spin-orbit torque in Ta/Co/Pt in-plane magnetization structure by planar Hall effect", Journal of Applied Physics, 120, 083908 (2016).
60. S. Krishnia, I. Purnama, and W.S. Lew*, "Direct observation of ice-rule violation and monopole dynamics in geometrically frustrated artificial honeycomb spin ice”, Journal of Magnetism and Magnetic Materials, 420, 158 (2016).
59. S. F. Zhang, W. L. Gan, J. Kwon, F. L. Luo, G. J. Lim, J. B. Wang, and W. S. Lew*, "Highly efficient domain walls injection in perpendicular magnetic anisotropy memory devices", Scientific Reports, 6, 24804 (2016).
58. D. W. Wong, I. Purnama, G. J. Lim, W. L. Gan, C. Murapaka and W. S. Lew*, "Current-induced three-dimensional domain wall propagation in cylindrical NiFe nanowires", Journal of Applied Physics, 119, 153902 (2016).
57. Hiu Tung Fook, Wei Liang Gan, and Wen Siang Lew*,“Gated skyrmion transport via field-induced potential barrier modulation”, Scientific Reports, 6, 21099 (2016).
56. M. Chandra Sekhar, P. Sethi, S. Goolaup, and W. S. Lew*, "Reconfigurable logic via gate controlled domain wall trajectory in magnetic network structure", Scientific Reports, 6, 20130 (2016).
55. P. Sethi, M. Chandra Sekhar, S. Goolaup, Y. J. Chen, S. H. Leong, and W. S. Lew*, "Direct observation of deterministic domain wall trajectory in magnetic network structures", Scientific Reports, 6, 19027 (2016).
54. M.B.A. Jalil, S.G. Tan, Z.B. Siu, W.L. Gan, I. Purnama, and W.S. Lew, "Stability of topological charge of magnetic skyrmion configuration", Journal of Magnetism and Magnetic Materials, 399, 155 (2016).
53. Fusheng Ma, Yan Zhou, and Wen Siang Lew, "Magnonic bandstructure in a Skyrmion magnonic crystal", IEEE Transactions on Magnetics, 51, No.11, 1500404 (2015).
52. J. Kwon, S. Goolaup, G. J. Lim, I. S. Kerk, C. H. Chang, Kaushik Roy, W. S. Lew*, "Low field domain wall dynamics in artificial spin-ice basis structure", Journal of Applied Physics, 118, 163907 (2015).
51. P. Sethi, M. Chandra Sekhar, G. J. Lim, and W. S. Lew*, "In-plane current induced domain wall nucleation and its stochasticity in perpendicular magnetic anisotropy Hall cross structures", Applied Physics Letters, 107, 192401 (2015).
50. M.Y. Zhang, X.Y. Dong, Perry P. Shum, J.J. Hu, H.B Su, and W.S. Lew, and L. Wei, "Magnetic field sensor based on magnetic-fluid-coated long-period fiber grating", Journal of Optics, 17, 065402 (2015).
49. Fusheng Ma, Yan Zhou, H. B. Braun, and W. S. Lew, "Skyrmion-based dynamic magnonic crystal", Nano Letters, 15, 4026 (2015).
48. H. T. Fook, W.L. Gan, I. Purnama, and W.S. Lew*,“Mitigation of magnus force in current-induced skyrmion dynamics”, IEEE Transactions on Magnetics, 51, No.11, 1500204 (2015).
47. H. K. Teoh, S. Goolaup, and W. S. Lew*, "Programmable logic operation via domain wall profile manipulation", IEEE Magnetics Letters, 6 4000204 (2015).
46. I. Purnama, W. L. Gan, D. W. Wong, and W. S. Lew*, "Guided current-induced skyrmion motion in 1D potential well", Scientific Reports, 5, 10620 (2015).
45. S. Goolaup, M. Ramu, C. Murapaka, and W. S. Lew*, "Transverse domain wall profile for logic applications", Scientific Reports, 5, 9603 (2015).
44. I. Purnama, I. S. Kerk, G. J. Lim, and W.S. Lew*, "Coupled Néel domain wall motion in sandwiched perpendicular magnetic anisotropy nanowires", Scientific Reports, 5, 8754 (2015).
43. M.C. Sekhar, S. Goolaup, I. Purnama, W.S. Lew*, "Coupled domain wall oscillations in magnetic cylindrical nanowires", Journal of Applied Physics, 117, 053913 (2015).
42. D. W. Wong, M. Chandra Sekhar, W. L. Gan, I. Purnama and W. S. Lew*, "Dynamics of three-dimensional helical domain wall in cylindrical NiFe nanowires", Journal of Applied Physics, 117, 17A747(2015).
41. Y. J. Chen, H. Z. Yang, S. H. Leong, K. M. Cher, J. F. Hu, P. Sethi, and W. S. Lew, "Erasure temperature measurements of heat assisted magnetic recording media", Journal of Applied Physics, 117, 17D117(2015).
40. M. Chandra Sekhar, M. Tran, L. Wang, G. C. Han and W. S. Lew, “Enhanced stability against spin torque noise in current perpendicular to the plane self-biased differential dual spin valves”, Journal of Magnetism and Magnetic Materials, 374, 740 (2015).
39. C. Guite, I. S. Kerk, M.C. Sekhar, M. Ramu, S. Goolaup, and W.S. Lew*, “All-electrical single domain wall generation for on-chip applications”, Scientific Reports, 4, 7459 (2014).
38. M. Chandra Sekhar, P. Sethi, S. Goolaup, M. Ramu, Y. J. Chen, S. H. Leong, and W.S. Lew*, "Direct observation of domain wall evolution at a bifurcation in magnetic network structures", Applied Physics Express, 7, 113003 (2014).
37. W.L. Gan, M. Chandra Sekhar, D.W. Wong, I. Purnama, S.Y. Chiam, N. Wong and W.S. Lew*, "Multi-vortex states in magnetic nanoparticles", Applied Physics Letters, 105,152405 (2014).
36. S. Krishnia, I. Purnama, and W.S. Lew*, "Remote Walker breakdown and coupling breaking in parallel nanowire systems", Applied Physics Letters, 105, 042404 (2014).
35. M. Ramu, I. Purnama, S. Goolaup, M.C. Sekhar, and W.S. Lew*, "Investigation of dominant spin wave modes by domain walls collision", Journal of Applied Physics, 115, 243908 (2014).
34. I. Purnama, M.C. Sekhar, W.S. Lew*, T. Ono, "Remote driving of multiple magnetic domain walls due to topological interaction", Applied Physics Letters, 104, 092414 (2014).
33. M.C. Sekhar, I. Purnama, S. Goolaup, W.S. Lew*, "Depinning assisted by domain wall deformation in cylindrical NiFe nanowires", Journal of Applied Physics, 115, 083913 (2014).
32. G.N. Yu, X.F. Liu , G.C. Xing, S. Chen, C.F. Ng, X.Y. Wu , E. K. L. Yeow , W. S. Lew, and T. C. Sum “Spatially-Resolved Ultrafast Optical Spectroscopy of Polymer-Grafted Residues on CVD Graphene”, Journal of Physical Chemistry C, 118, 708 (2014).
31. P. Zu, C.C. Chan, G. W. Koh, W.S. Lew, Y.X. Jin, H.F. Liew, W.C. Wong, and X.Y. Dong, “Enhancement of the sensitivity of magneto-optical fiber sensor by manifying the birefringence of magnetic fluid film with Loyt-Sagnac interferomter”, Sensor and Actuators B: Chemical, 191, 19 (2014).
30. Y.P. Liu, Z. W. Liu, W.S. Lew*, Q. J. Wang,“Temperature dependence of the electrical transport properties in few-layer graphene interconnects”, Nanoscale Research Letters, 8, 335 (2013).
29. Y. X. Wang, S. Zhang, J.W. Lee, W.S. Lew, D. Sun and B. Li, “Toward hard yet tough CrAlSiN coatings via compositional grating”, Surface and Coatings Technology, 231, 346 (2013).
28. Y.P. Liu, S. Goolaup, W.S. Lew*, I. Purnama, M. Chandra Sekhar, T.J. Zhou, and S.K. Wong, “Excitonic bandgap dependence on stacking configuration in four layer graphene”, Applied Physics Letters 103, 163108 (2013).
27. Y. P. Liu, H. Idzuchi, Y. Fukuma, O. Rousseau, Y. Otani, and W. S. Lew*, “Spin injection properties in trilayer graphene lateral spin valves”, Applied Physics Letters,102, 033105 (2013).
26. P. Zu, C.C. Chan, W.S. Lew, Y.X. Jin, H.F. Liew, W.C. Wong, X.Y. Dong and C.Z. Foo, “Laser self-induced tunable birefringence of magnetic fluid”, Applied Physics Letters 102, 181116 (2013).
25. Y. X. Wang, S. Zhang, J.W. Lee, W.S. Lew, and B. Li, “Toughing effect of Ni on nc-CrAlN/a-SiNx hard nanocomposite”,Applied Surface Science 265, 418(2013)
24. M. Chandra Sekhar, H. F. Liew, I. Purnama, and W. S. Lew*, “Helical domain wall in constricted cylindrical NiFe nanowires”, Applied Physics Letters 101, 152406 (2012).
23. X.H. Wang, I. Purnama, M.C. Sekhar, W.S. Lew*, “Highly stable vortex state in sub-100nm nanomagnets”, Applied Physics Express, 5, 053001 (2012).
22. Y.P. Liu, W.S. Lew*, S. Goolaup, Z.X. Shen, L. Sun, T.J. Zhou, S.K. Wong, “Observation of the semiconductor-metal transition behavior in monolayer graphene”, Carbon, 50, 2273 (2012).
21. P. Zu, C.C. Chan, W.S. Lew, L.M. Hu, Y.X. Jin, H.F. Liew, L.H. Chen, W.C. Wong, and X.Y. Dong, “High extinction ratio magneto-optical fiber modulator based on nanoparticle magnetic fluids”, IEEE Photonic Journal, 4, 1140 (2012).
20. X.H. Wang, M. Chandra Sekhar, I. Purnama, W.S. Lew*, S. Goolaup; C.X. Cong, “Magnetization reversal in nano triangles fabricated by nanosphere lithography”, Thin Solid Films 520, 6980 (2012).
19. Y. X. Wang, S. Zhang, J.W. Lee, W.S. Lew, and B. Li, “Influence of bias voltage on the hardness and toughness of CrAlN coatings via magnetron sputtering”, Surface and Coatings Technology 206,5103 (2012).
18. P. Zu, C.C. Chan, W.S. Lew, Y.X. Jin, Y.F. Zhang, H.F. Liew, L.H. Chen, W.C. Wong, X.Y. Dong, “Magneto-optical fiber sensor based on magnetic fluid”, Optics Letters, 37, 398 (2012).
17. Y. X. Wang, S. Zhang, J.W. Lee, W.S. Lew, D. Sun and B. Li, “Hard yet tough ceramic coating: Not a dream anymore”, Nanoscience and Nanotechnology Letters 4, 375 (2012).
16. P. Zu, C.C. Chan, W.S. Lew, L.M. Hu, Y.X. Jin, H.F. Liew, L.H. Chen, W.C. Wong, X.Y. Dong, “Temperature-insensitive magnetic field sensor based on nanoparticle magnetic fluid and photonic crystal fiber”, IEEE Photonics Journal 4, 491 (2012).
15. M.C. Sekhar, C.C. Wang, G.C. Han, W.S. Lew, “Effect of interlayer coupling on the reversal process of differential dual spin valves”, Journal of Applied Physics, 111, 07B723 (2012).
14. X.H. Wang, W.Z. Wang, T.F. Kong, W.S. Lew*, “Domain wall trapping and influence of the asymmetry in magnetic nanoring studied by micromagnetic simulations”, Journal of Nanoscience and Nanotechnology, 11 2669 (2011).
13. V. Swaminathan, H.F. Liew, W.S. Lew*, L.Y. Hu, A.T. Phan, “Photoelectrochemical studies of DNA-tagged biomolecules on Au and Au/Ni/Au multilayer nanowires”, Nanoscale Research Letters, 6, 535 (2011).
12. M.C. Sekhar, S. Goolaup, I. Purnama, W.S. Lew*, “Crossover in domain wall potential polarity as a function of anti-notch geometry”, Journal of Physics D-Applied Physics, 44, 235002 (2011).
11. P. Zu, C.C. Chan, W.S. Lew, Y.X. Jin, Y.F. Zhang, H.F. Liew, L.H. Chen, and X.Y. Dong, “Magneto-optic fiber Sagnac modulator based on magnetic fluids”, Optics Letters 36, 1425 (2011).
10. I. Purnama, M.C. Sekhar, S. Goolaup, W.S. Lew*, “Current-induced coupled domain wall motions in a two-nanowire system”, Applied Physics Letters, 99, 152501 (2011).
9. I. Purnama, M.C. Sekhar, S. Goolaup, W.S. Lew*, “Collective motion assisted by magnetostatic interactions in coupled domain wall system”, IEEE Transactions on Magnetics, 47, No.10, 00189464 (2011).
8. H. F. Liew and W. S. Lew*, “Fabrication of constricted compositionally-modulated NixFe1−x nanowires”,Journal of Physics: Conference Series 266, 012058 (2011).
7. X. H. Wang, I. Purnama, S. Goolaup and W. S. Lew*, “Field effect on domain wall trapping and domain wall motion in notch free NiFe asymmetric nanorings”,Journal of Physics: Conference Series 266, 012085 (2011).
6. S.Goolaup, S. C. Low, M. Chandra Sekhar and W. S. Lew*, “Dependence of pinning on domain wall spin structure and notch geometry”, Journal of Physics: Conference Series 266, 012079 (2011).
5. Y.P. Liu, W.S. Lew*, L. Sun, “Enhanced weak localization effect in few-layer graphene”, Physical Chemistry Chemical Physics, 13, 20208 (2011).
4. Y.P. Liu, W.S. Lew*, S. Goolaup, H.F. Liew, S.K. Wong, T.J. Zhou, “Observation of oscillatory resistance behavior in coupled bernal and rhombohedral stacking graphene”, ACS Nano 5, 5490 (2011).
3. T.F. Kong, H. Shin, H.S. Sugiarto, H.F. Liew, X.H. Wang, W.S. Lew*, N.T. Nguyen, Y. Chen, “An efficient microfluidic sorter: implementation of double meandering micro striplines for magnetic particles switching”, Microfluidics and Nanofluidics 10, 1069 (2011).
2. X.H. Wang, S. Goolaup, W.S. Lew*, “Dependence of domain wall stability on vortex chirality in asymmetric nanoring”, Applied Physics Letters, 97, 142504 (2010).
1. Y.P. Liu, S. Goolaup, C. Murapaka, W.S. Lew*, S.K. Wong, “Effect of magnetic field on the electronic transport in trilayer graphene”, ACS Nano, 4, 7087 (2010).