scholarly journals Anatomy of magnetic anisotropy induced by Rashba spin-orbit interactions

2018 ◽  
Vol 98 (13) ◽  
Author(s):  
Gaurav Chaudhary ◽  
Manuel dos Santos Dias ◽  
Allan H. MacDonald ◽  
Samir Lounis
Keyword(s):  
Magnetic Anisotropy ◽  
Spin Orbit ◽  
Rashba Spin ◽  
Spin Orbit Interactions

scholarly journals Intrinsic and Rashba spin-orbit interactions in graphene sheets

2006 ◽  
Vol 74 (16) ◽  
Author(s):  
Hongki Min ◽  
J. E. Hill ◽  
N. A. Sinitsyn ◽  
B. R. Sahu ◽  
Leonard Kleinman ◽  
...  
Keyword(s):  
Graphene Sheets ◽  
Spin Orbit ◽  
Rashba Spin ◽  
Spin Orbit Interactions

scholarly journals Moiré Engineering of Spin-Orbit Coupling in Twisted Platinum Diselenide

2022 ◽  
Author(s):  
Lennart Klebl ◽  
Qiaoling Xu ◽  
Ammon Fischer ◽  
Lede Xian ◽  
Martin Claassen ◽  
...  
Keyword(s):  
Large Scale ◽  
Charge Density Waves ◽  
Orbit Coupling ◽  
Transition Metal Dichalcogenide ◽  
Spin Orbit Coupling ◽  
Spin Orbit ◽  
Functional Renormalization Group ◽  
Ab Initio Simulations ◽  
Rashba Spin ◽  
Spin Orbit Interactions

Abstract We study the electronic structure and correlated phases of twisted bilayers of platinum diselenide using large-scale ab initio simulations combined with the functional renormalization group. PtSe2 is a group-X transition metal dichalcogenide, which hosts emergent flat bands at small twist angles in the twisted bilayer. Remarkably, we find that moiré engineering can be used to tune the strength of Rashba spin-orbit interactions, altering the electronic behavior in a novel manner. We reveal that an effective triangular lattice with a twist-controlled ratio between kinetic and spin-orbit coupling scales can be realized. Even dominant spin-orbit coupling can be accessed in this way and we discuss consequences for the interaction driven phase diagram, which features pronounced exotic superconducting and entangled spin-charge density waves.

CONDUCTANCE IN GRAPHENE-BASED STRUCTURE WITH THE SPATIALLY-MODULATED STRENGTH OF SPIN–ORBIT INTERACTIONS

2011 ◽  
Vol 25 (23n24) ◽  
pp. 3199-3209
Author(s):  
CHUNXU BAI ◽  
JUNTAO WANG ◽  
JING ZHANG ◽  
YANLING YANG
Keyword(s):  
Transport Properties ◽  
Transfer Matrix ◽  
Transfer Matrix Method ◽  
Matrix Method ◽  
Incident Energy ◽  
Orbit Interaction ◽  
Spin Orbit ◽  
Rashba Spin ◽  
Normal Transmission ◽  
Spin Orbit Interactions

Based on the transfer-matrix method, the transport properties of electrons in the multilayers structure with the spatially-modulated strength of spin–orbit interactions (SOIs) have been investigated. We show that the transmission and the conductance oscillate with the parameters of the structure and the incident energy. In particular, when only the Rashba spin–orbit interaction (RSOI) exists, in sharp contrast to its counterpart in conventional junctions, the minima of the normal transmission probabilities just reach a constant value 0.5.

scholarly journals Correlation-driven eightfold magnetic anisotropy in a two-dimensional oxide monolayer

2020 ◽  
Vol 6 (15) ◽  
pp. eaay0114 ◽  
Author(s):  
Zhangzhang Cui ◽  
Alexander J. Grutter ◽  
Hua Zhou ◽  
Hui Cao ◽  
Yongqi Dong ◽  
...  
Keyword(s):  
Magnetic Anisotropy ◽  
Easy Axis ◽  
Uniaxial Anisotropy ◽  
Spin Reorientation ◽  
Spin Orbit ◽  
Two Dimensional ◽  
Orbital Ordering ◽  
Magnetic Easy Axis ◽  
Spin Orbit Interactions ◽  
Spin Switching

Engineering magnetic anisotropy in two-dimensional systems has enormous scientific and technological implications. The uniaxial anisotropy universally exhibited by two-dimensional magnets has only two stable spin directions, demanding 180° spin switching between states. We demonstrate a previously unobserved eightfold anisotropy in magnetic SrRuO3 monolayers by inducing a spin reorientation in (SrRuO3)1/(SrTiO3)N superlattices, in which the magnetic easy axis of Ru spins is transformed from uniaxial 〈001〉 direction (N < 3) to eightfold 〈111〉 directions (N ≥ 3). This eightfold anisotropy enables 71° and 109° spin switching in SrRuO3 monolayers, analogous to 71° and 109° polarization switching in ferroelectric BiFeO3. First-principle calculations reveal that increasing the SrTiO3 layer thickness induces an emergent correlation-driven orbital ordering, tuning spin-orbit interactions and reorienting the SrRuO3 monolayer easy axis. Our work demonstrates that correlation effects can be exploited to substantially change spin-orbit interactions, stabilizing unprecedented properties in two-dimensional magnets and opening rich opportunities for low-power, multistate device applications.

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