Academic Profile

Academic Profile

Prof Lew Wen Siang

Professor, School of Physical & Mathematical Sciences - Division of Physics & Applied Physics
Assistant Chair (Research & Graduate Studies), School of Physical and Mathematical Sciences (SPMS)

Prof Lew Wen Siang

Dr Lew is a full-time academic staff (Assistant Professor) at the Division of Physics and Applied Physics, School of Physical and Mathematical Sciences, Nanyang Technological University. He joined the University in January 2007 and is now working on building a research group focus on the research of spin injection in hybrid ferromagnetic-III-V-semiconductor devices. He has published 19 refereed journal papers, including two in the journal Physical Review Letters and one in the journal Nature. His research interests are spintronic and semiconductor devices, III-V solar cells, ultrathin epitaxial magnetic structures, and nanostructured magnetism. The applicant has been working on molecular beam epitaxy system for nine years in industrial and institution laboratories. He has vast experience in planning, designing, and setting up large scale research facilities independently. Prior to joining NTU, he worked as Research Associate at the Cavendish Laboratory where he took charge to set up a new microfabrication cleanroom and a multi-chamber six-target magnetic sensor magnetron sputtering deposition system during 2003-2006. Dr Lew is skilful in device fabrication and measurement.
Research Interests
Dr Lew's areas of expertise are spintronic devices, nanoscale magnetism, and bio magnetic sensors.
Current Projects
  • 40nm Back End of Line (BEOL) Integration of 1T1R Embedded ReRAM Devices for Data Storage Applications
  • Advanced ReRAM Technology for Embedded Systems
  • Bio Spintronics Devices
  • Crossbar Array Implementation of Oxide-Based Resistive Random Access Memory Cells with Highly Scalable Bidirectional Select Device
  • Design and Development of Intelligent Materials and Systems
  • Develop Magnetic Memory for SRAM Replacement
  • Development of Quantum Cascade Lasers for Infrared Countermeasure
  • Device Reliability Engineering and New Perpendicular Anisotropy Materials for High Performance Spin Transfer-Torque MRAM
  • Energy Dissipation-Less Spin-Based Devices
  • GFS-NTU Research Collaboration Project
  • High Speed Low Power Switching of Non-Volatile Memory Devices by Utilizing Spin Orbit Torque (SOT) Phenomena
  • Highly Sensitive Polarization Microscope For Kerr Imaging
  • Magnetic and Electrical Transport Studies in Synthetic Magnetically Textured Materials
  • Mixed Ionic-Electronic Conduction-Based Selectors for ReRAM Devices
  • Multi-functional Spintronic Materials and Devices
  • Neuromorphic Computing - Resistive Random Access Memory (RRAM) Material Research
  • Non-Volatile Magnetic Logic and Memory Integrated Circuit Devices
  • Non-Volatile Memory and Logic
  • Novel High Anisotropy PMA Materials for STT-MRAM Applications
  • Novel Reactive Ion Etch and Ion Beam Etch Patterning Process of High Anisotropy PMA Magnetic Tunnel Junction for STT-MRAM Applications
  • ST-FMR for Advanced Spintronic Applications
  • Scientist Exchange Programme FY2010
  • Simulations and Experimental Investigations of Ionic-Electronic Conduction Physics in ReRAM Devices
  • Spin Engineering Patterned Magnetic Structures
  • Spin Orbit Torque as Memory Device for Neuromorphic Engineering
  • Spintronic Devices for Magnetic Immunoassay Applications
  • Spintronics Based Lab-on-a-Chip Devices for Bio-Detection Applications
Selected Publications
  • Palfreyman, J. J., van Belle, F., Lew, W. S., Mitrelias, T., Bland, J. A. C., Lopalco, M., Bradley, M. (2007). Hybridization of electrodeposited magnetic multilayer micropillars. IEEE Transactions on Magnetics, 43(6), 2439-2441.
  • van Belle, F., Hayward, T. J., Blanda, J. A. C., Lew, W. S. (2007). Coercivity engineering of exchange biased magnetic multilayer samples for digital encoding applications. Journal of Applied Physics, 102.
  • Lew, W. S., Li, S. P., Bland, J. A. C. (2006). Two-jump magnetic switching in ultrathin Co(001) films probed by giant magnetoresistance measurements. Journal of Magnetism and Magnetic Materials, 307(2), 232-236.
  • van Belle, F., Lew, W. S., Vaz, C. A. F., Bland, J. A. C. (2006). Coercivity and switching field - Engineered magnetic multilayers for 3-D patterned media. IEEE Transactions on Magnetics, 42(10), 2957-2959.
  • Wang, Z. H., Lew, W. S., Bland, J. A. C. (2006). Manipulation of superparamagnetic beads using on-chip current lines placed on a ferrite magnet. Journal of Applied Physics, 99(8).

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