Results 121 to 130 of about 15,024 (305)

Handed Magnon Propagation in Easy‐Axis Antiferromagnetic α‐Fe2O3

Advanced Materials, EarlyView.
Coherent excitation and detection of handed magnons are achieved in the easy‐axis antiferromagnet α‐Fe2O3. An external magnetic field lifts the degeneracy between left‐ and right‐handed magnons without affecting their propagation velocity. The Dzyaloshinskii–Moriya interaction and anisotropy modulate their amplitude and damping, enabling intrinsic ...
Chang Xu, Hanbum Park, Chenhui Zhang, Hyunsoo Yang   +3 more
wiley   +1 more source

Conserved spin operator of Dirac’s theory in spatially flat FLRW space-times

European Physical Journal C: Particles and Fields
New conserved spin and orbital angular momentum operators of Dirac’s theory on spatially flat FLRW space-times are proposed generalizing thus the recent results concerning the role of Pryce’s spin operator in the flat case (Cotăescu in Eur Phys J C, 82 ...
Ion I. Cotăescu
doaj   +1 more source

LEAD: Literature Enhanced Ab Initio Discovery of Nitride Dusting Layers for Enhanced Tunnel Magnetoresistance and Lower Resistance Magnetic Tunnel Junctions

Advanced Materials, EarlyView.
Magnetic tunnel junctions (MTJs) using MgO tunnel barriers face challenges of high resistance‐area product and low tunnel magnetoresistance (TMR). To discover alternative materials, Literature Enhanced Ab initio Discovery (LEAD) is developed. The LEAD‐predicted materials are theoretically evaluated, showing that MTJs with dusting of ScN or TiN on ...
Sabiq Islam, William S. Rogers, Chen‐Yu Hu, Ming‐Yuan Song, Xinyu Bao, Shehrin Sayed, Jean Anne C. Incorvia   +6 more
wiley   +1 more source

Orbital angular momentum of an arbitrary axisymmetric light field after passing through an off-axis spiral phase plate

, 2018
Victor V. Kotlyar, A. A. Kovalev
openalex   +1 more source

Mars: Orbital Angular Momentum for Orbit-Spin Coupling Studies of GDS

, 2020
J. H. Shirley
openalex   +1 more source

Off-axis retrieval of orbital angular momentum of light stored in cold atoms [PDF]

, 2014
R. A. de Oliveira, L. Pruvost, P. S. Barbosa, W. S. Martins, S. Barreiro, D. Felinto, D. Bloch, J. W. R. Tabosa   +7 more
openalex   +1 more source

Field‐Free, Deterministic Giant Spin‐Orbit Torque Switching of 1.3 T Perpendicular Magnetization With Symmetry‐Lifted Topological Surface States

Advanced Materials, EarlyView.
We show a giant, bias‐field free, deterministic, spin‐orbit‐torque switching of perpendicular hard magnets with HC over 1.3 T. By combining the three‐fold 3m symmetry from topological insulator surface states with the rectangular mm2 symmetry from the 2 x 1 intercalation in Cr3Te4, the interface symmetry is significantly reduced into a unidirectional m
He Ren, Yawen Peng, Meixin Cheng, Yu Shi, Reza Asadi, Adam W. Tsen, Guo‐Xing Miao   +6 more
wiley   +1 more source

Coherent terahertz radiation with orbital angular momentum by helically microbunched electron beam [PDF]

, 2021
Haoran Zhang, Wenxing Wang, Shimin Jiang, Cheng Li, Zhigang He, Shancai Zhang, Qika Jia, Lin Wang, Duohui He   +8 more
openalex   +1 more source

Investigating the Structural Factors Influencing the Magnetic Interaction between Individual Copper Spins in the CuCu4 Metallacrown Complex, from Its Bulk Form to Its Adsorption on Au(111)

Advanced Materials Interfaces, EarlyView.
The Cu(II)[12‐MCCu(II)N(Shi)‐4] metallacrown complex (CuCu4) is studied to examine how geometric transformations affect magnetic coupling between copper spins by using ultraviolet photoemission spectroscopy and DFT calculations for the bulk phase and CuCu4 adsorbed on Au(111). While adsorption minimally affects tDOS, exchange coupling constants between
Ariyan Tavakoli, Stefan Lach, Frederik Pütz, Dominic Stephan, Anne Lüpke, Dominik Laible, Siegfried Kaidisch, Andreas Windischbacher, Eva Rentschler, Peter Puschnig, Hans‐Christian Schneider, Christiane Ziegler   +11 more
wiley   +1 more source

Orbital angular momentum burst control in astigmatic structured beams in ABCD-matrix transforms

Компьютерная оптика
We developed and experimentally implemented an ABCD matrix formalism for describing structural transformations and orbital angular momentum of structured Laguerre-Gaussian beams in an astigmatic optical system containing cylindrical and corrective ...
A.V. Volyar, M.V. Bretsko, S.I. Khalilov, Y.E. Akimova   +3 more
doaj   +1 more source