14 citations · 94 across the 13 of their papers we have counts for
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The effect of magnetic impurity scattering on transport in topological insulators
Jesse A. Vaitkus, Cong Son Ho, Jared H. Cole
Charge transport in topological insulators is primarily characterised by so-called topologically projected helical edge states, where charge carriers are correlated in spin and mom…
Sustainable spin current in the time-dependent Rashba system
Cong Son Ho, Mansoor B. A. Jalil, Seng Ghee Tan
The generation of spin current and spin polarization in 2DEG Rashba system is considered, in which the spin-orbital coupling (SOC) is modulated by an ac gate voltage. By using non-…
Tunable spin and orbital polarization in SrTiO3-based heterostructures
Cong Son Ho, Weilong Kong, Ming Yang +2
We formulate the effective Hamiltonian of Rashba spin-orbit coupling (RSOC) in (LAO/STO) heterostructures. We derive analytical expressions of properties…
Zitterbewegung-mediated RKKY coupling in topological insulator thin films
Cong Son Ho, Zhuo Bin Siu, Seng Ghee Tan +1
The dynamics of itinerant electrons in topological insulator (TI) thin films is investigated using a multi-band decomposition approach. We show that the electron trajectory in the…
Newton's second law in spin-orbit torque
Cong Son Ho, Seng Ghee Tan, Shun-Qing Shen +1
Spin-orbit torque (SOT) refers to the excitation of magnetization dynamics via spin-orbit coupling under the application of a charged current. In this work, we introduce a simple a…
Effect of surface state hybridization on current-induced spin-orbit torque in thin topological insulator films
Cong Son Ho, Yi Wang, Zhuo Bin Siu +3
We investigate the current-induced spin-orbit torque in thin topological insulator (TI) films in the presence of hybridization between the top and bottom surface states. We formula…
Effect of surface hybridization on RKKY coupling in ferromagnet/topological insulator/ferromagnet trilayer system
Cong Son Ho, Mansoor B. A. Jalil
We theoretically investigate the RKKY exchange coupling between two ferromagnets (FM) separated by a thin topological insulator film (TI). We find an unusual dependence of the RKKY…
Spin accumulation in disordered topological insulator thin films
Zhuo Bin Siu, Ho Cong Son, Mansoor bin Abdul Jalil +1
Topological insulator (TI) thin films differ from the more commonly studied semi-infinite bulk TIs in that the former possesses both top and bottom surfaces where the surface state…
The role of exchange interaction in nitrogen vacancy centre-based magnetometry
Cong Son Ho, Seng Ghee Tan, Mansoor B. A. Jalil +2
We propose a multilayer device comprising of a thin-film-based ferromagnetic hetero-structure (FMH) deposited on a diamond layer doped with nitrogen vacancy centers (NVC's). We fin…
Gauge Physics of Spin Hall Effect
Seng Ghee Tan, Mansoor B. A. Jalil, Congson Ho +2
Spin Hall effect (SHE) has been discussed in the context of Kubo formulation, geometric physics, spin orbit force, and numerous semi-classical treatments. It can be confusing if th…
Gate-control of spin-motive force and spin-torque in Rashba SOC systems
Cong Son Ho, Mansoor B. A. Jalil, Seng Ghee Tan
The introduction of a strong Rashba spin orbit coupling (SOC) had been predicted to enhance the spin motive force (SMF) [see Phys. Rev. Lett. {\bf 108}, 217202 (2012)]. In this wor…
Spin force and intrinsic spin Hall effect in spintronics systems
Cong Son Ho, Mansoor B. A. Jalil, Seng Ghee Tan
We investigate the spin Hall effect (SHE) in a wide class of spin-orbit coupling systems by using spin force picture. We derive the general relation equation between spin force and…
Spin force and the generation of sustained spin current in time-dependent Rashba and Dresselhauss systems
Cong Son Ho, Mansoor B. A. Jalil, Seng Ghee Tan
The generation of spin current and spin polarization in a 2DEG structure is studied in the presence of Dresselhaus and Rashba spin-orbit couplings (SOC), the strength of the latter…