Academic Profile : Faculty

Dr Lim Chu Keong Gerard Joseph
Lecturer, School of Physical & Mathematical Sciences - Division of Physics & Applied Physics
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Gerard Joseph Lim earned his BSc (Hons) and PhD in Physics from Nanyang Technological University. Following his studies, he worked as a Research Fellow at the Intelligent Materials and Systems Lab (formerly known as the Spintronic Device Lab), where his research focused on materials and devices for emerging memory, logic systems, and non-conventional computing applications.
Currently, Gerard is a lecturer at the School of Physical and Mathematical Sciences (SPMS). He teaches both undergraduate and Master's level courses and manages the Precision Scientific Instrumentation Lab (PSILab). This multidisciplinary lab supports research, innovation, and education by providing advanced facilities for rapid prototyping, modeling and simulation, and electronics development.
Currently, Gerard is a lecturer at the School of Physical and Mathematical Sciences (SPMS). He teaches both undergraduate and Master's level courses and manages the Precision Scientific Instrumentation Lab (PSILab). This multidisciplinary lab supports research, innovation, and education by providing advanced facilities for rapid prototyping, modeling and simulation, and electronics development.
Nanomagnetism; Spintronic Devices for Emerging Memory and Computing Applications; Magnetic Materials and Devices; Nano/Micro-fabrication Techniques
US 2022/0385292 A1: Magnetic Logic Device, Circuit Having Magnetic Logic Devices, And Methods For Controlling The Magnetic Logic Device And The Circuit (2024)
Abstract: A magnetic logic device having two magnetic elements and a conductive element coupled to the two magnetic elements and arranged at least substantially perpendicular to the magnetic elements, wherein the device is configured, for each magnetic element, to have a magnetisation state with a perpendicular easy axis, and to switch the magnetisation state in response to a spin current generated in the magnetic element in response to a write current applied to the magnetic element, and configured to generate, as an output, a Hall voltage across the conductive element in response to a respective read current applied to each magnetic element, wherein a magnitude of the Hall voltage is variable, depending on a direction of the magnetisation state of each magnetic element and a direction of the respective read current applied to each magnetic element, for the device to provide outputs corresponding to one of a plurality of logical operations.
Abstract: A magnetic logic device having two magnetic elements and a conductive element coupled to the two magnetic elements and arranged at least substantially perpendicular to the magnetic elements, wherein the device is configured, for each magnetic element, to have a magnetisation state with a perpendicular easy axis, and to switch the magnetisation state in response to a spin current generated in the magnetic element in response to a write current applied to the magnetic element, and configured to generate, as an output, a Hall voltage across the conductive element in response to a respective read current applied to each magnetic element, wherein a magnitude of the Hall voltage is variable, depending on a direction of the magnetisation state of each magnetic element and a direction of the respective read current applied to each magnetic element, for the device to provide outputs corresponding to one of a plurality of logical operations.
Courses Taught
AY24/25 S2
PH1106 Electricity and Magnetism
AY24/25 T2
PH6601 Solid-State Electronic Devices
PH6701 Precision Instrumentation Laboratory
AY24/25 S1
PH1105 Optics, Vibrations, and Waves (Tutorial)
AY24/25 T1
PH6601 Solid-State Electronic Devices
PH6701 Precision Instrumentation Laboratory
PH6760 Scientific Communication
PH1106 Electricity and Magnetism
AY24/25 T2
PH6601 Solid-State Electronic Devices
PH6701 Precision Instrumentation Laboratory
AY24/25 S1
PH1105 Optics, Vibrations, and Waves (Tutorial)
AY24/25 T1
PH6601 Solid-State Electronic Devices
PH6701 Precision Instrumentation Laboratory
PH6760 Scientific Communication