146 citations · 189 across the 10 of their papers we have counts for
10 papers
Observation of current-induced orbital quadrupole accumulation
Geun-Hee Lee, Yubin Ji, Yongho Park +12
Spintronics and orbitronics rely on current-induced accumulations of magnetic dipoles: spin and orbital angular momentum. However, electronic orbitals inherently carry multipoles b…
Quantum Spin Transfer of Spin-Correlated Electron Pairs
Seongmun Hwang, Jung Hyun Oh, Paul M. Haney +2
We theoretically investigate quantum spin transfer from spin-correlated conduction-electron pairs to localized spins in a ferromagnet, given that electrons are correlated intrinsic…
Nonlocal Transport in Cr-doped (Bi,Sb)2Te3: Absence of Nonchiral Edge States
Valery Ortiz Jimenez, Paul M. Haney, Farzad Mahfouzi +3
The quantum anomalous Hall effect shows great promise for realization of the ohm without the need for an external magnetic field. The most mature material platform is magnetically…
Electric Field-Induced Kerr Rotation on Metallic Surfaces
Farzad Mahfouzi, Mark D. Stiles, Paul M. Haney
We use a combination of density functional theory calculations and optical modeling to establish that the electric field-induced Kerr rotation in metallic thin films has contributi…
Metallic Electro-Optic Effect in Twisted Double-Bilayer Graphene
D. J. P. de Sousa, N. Roldan-Levchenko, C. O. Ascencio +3
Recent theoretical advances have highlighted the role of Bloch state intrinsic properties in enabling unconventional electro-optic (EO) phenomena in bulk metals, offering novel str…
Current-Induced Circular Dichroism on Metallic Surfaces: A First-Principles Study
Farzad Mahfouzi, Mark D. Stiles, Paul M. Haney
We use {\it ab initio} calculations to understand the current-induced optical response and orbital moment accumulation at the surfaces of metallic films. These two quantities are r…
Breakdown of the drift-diffusion model for transverse spin transport in a disordered Pt film
K. D. Belashchenko, G. G. Baez Flores, W. Fang +4
Spin accumulation and spin current profiles are calculated for a disordered Pt film subjected to an in-plane electric current within the nonequilibrium Green function approach. In…
Gigantic tunneling magnetoresistance in magnetic Weyl semimetal tunnel junctions
D. J. P. de Sousa, C. O. Ascencio, P. M. Haney +2
We investigate the tunneling magnetoresistance in magnetic tunnel junctions (MTJs) comprised of Weyl semimetal contacts. We show that chirality-magnetization locking leads to a gig…
Bidirectional switching assisted by interlayer exchange coupling in asymmetric magnetic tunnel junctions
D. J. P. de Sousa, P. M. Haney, D. L. Zhang +2
We study the combined effects of spin transfer torque, voltage modulation of interlayer exchange coupling and magnetic anisotropy on the switching behavior of perpendicular magneti…
Intrinsic spin currents in ferromagnets
V. P. Amin, Junwen Li, M. D. Stiles +1
First principles calculations show that electric fields applied to ferromagnets generate spin currents flowing perpendicularly to the electric field. Reduced symmetry in these ferr…