6 papers
Harnessing Post-selected von Neumann Measurements to Strengthen Entanglement and Quantum Signatures in Coherent States
Janarbek Yuanbek, Zelalem Abebe Bekele, Zhi-qiang Liu
We investigate how post-selected von Neumann measurements modify the nonclassical properties of two-mode entangled coherent states (ECSs). From the conditional pointer state, we ch…
Orbital Hall Effect Enables Field-Free Magnetization Reversal in Ferrimagnets without Additional Conversion Layer
Zelalem Abebe Bekele, Kun Lei, Xiukai Lan +8
The spin Hall effect provides a well-established route for electrical magnetization control, while the orbital Hall effect offers a powerful yet less explored source of angular mom…
Harnessing hidden quantum metric response in a 2D magnet via nonlocal photovoltaic effect
Yong Tan, Qian Hu, Rui-Chun Xiao +11
The quantum geometry of Bloch wavefunctions underpins a wealth of emergent phenomena in quantum materials. Its imaginary part, the Berry curvature, has long been recognized as a ke…
Orbital Hall Effect Enables Field-Free Magnetization Reversal in Ferrimagnets without Additional Conversion Layer
Zelalem Abebe Bekele, Kun Lei, Xiukai Lan +7
The spin Hall effect (SHE) enables efficient electrical manipulation of magnetization through the spin Hall current \left(\mathbit{J}_{\mathbit{SHE}}\right), advancing energy-effic…
Orbital Hall effect assisted field-free perpendicular magnetization switching
Zelalem Abebe Bekele, Yuan-Yuan Jiang, Kun Lei +5
Spin-orbit torques (SOTs) generated through the conventional spin Hall effect (SHE) and/or Rashba-Edelstein effect offer potential for magnetization manipulation. However, determin…
The dominancy of damping like torque for the current induced magnetization switching in Pt/Co/W multilayers
Zelalem Abebe Bekele, Kangkang Meng, Yong Wu +3
Two classes of spin-orbit coupling (SOC) mechanisms have been considered as candidate sources for the spin orbit torque (SOT): the spin Hall Effect (SHE) in heavy metals with stron…