topologically protected spin diffusion and spin generator

admin 88 59 Comment

Topologically protected spin diffusion and spin

Topologically protected spin diffusion and spin

Jul 10, 2020 · Moreover, we demonstrate how this topologically protected spin diffusion length can be used in prototype spin generators and rectifiers that operate over hundreds of micrometers. Indeed, the longsp.info Topologically protected spin diffusion and spin ARTICLE OPEN Topologically protected spin diffusion and spin generator using chalcogenide superlattices Junji Tominaga 1 , Noriyuki Miyata , Satoshi Sumi2, Hiroyuki Awano2 and Shuichi Murakami3 sp.info Topologically protected spin diffusion and spin layers that have a topologically protected spin diffusion length exceeding 100 渭 ma t room temperature. A spin generator is demonstrated by combining magnetic injectors (TbFeCo) with sp.info Effect of inter-layer spin diffusion on skyrmion Jul 03, 2019 · Skyrmions are topologically protected particle-like magnetic Furthermore spin diffusion was also shown to play Roughness profiles were generated using a jagged granular generator algorithm


			
Antiferromagnetic Spintronics Modern Magnetism

Antiferromagnetic Spintronics Modern Magnetism

Theoretical tools that I use include, but not limited to, Boltzmann equation, spin diffusion equation, effective Lagrangian, lattice Green's function, and micromagnetics. Topological magnonics:Similar to electrons, the Berry phase associated with magnons gives rise to topologically protected edge states and chiral spin currents confined on the sp.info Temperature-driven topological quantum phase Dec 13, 2016 · Upon further increasing the spin-orbit interaction strength the system has gone through the critical point of the TQPT (at 位/位 0 鈮 1.2), the sp.info Magnetochemistry Free Full-Text Ferromagnetic Nov 26, 2021 · Moreover, the films showed a topologically protected spin diffusion length of more than 100 渭m at room temperature . We also confirmed that there exists a large SOI in a [GeTe/Sb 2 Te 3]/Py superlattice, by a spin pumping sp.info Pure spin current devices based on ferromagnetic Oct 26, 2016 · Currently there exist a few methods capable of creating pure spin currents, like spin Hall effect 3,4, spin pumping 5,6,7 and spin Seebeck effect 7,8,9. The detection of spin currents usually


			
Murakami Lab. Dept. of Physics, Tokyo Tech.

Murakami Lab. Dept. of Physics, Tokyo Tech.

"Topologically protected spin diffusion and spin generator using chalcogenide superlattices" npj 2D Materials and Applications 4, 22 (2020). [104] Masato Hamada and Shuichi Murakami "Phonon rotoelectric effect" Phys. Rev. B 101, 144306 (2020). [103] Ryo Takahashi, Yutaro Tanaka, and Shuichi Murakamisp.info Topological states and phase transitions in Sb2Te3 Jun 13, 2016 · Topological insulators (TIs) are bulk insulators with exotic 鈥榯opologically protected鈥 surface conducting modes. It has recently been pointed out that when stacked together, interactions sp.info Junji TOMINAGA Distinguished Senior Researcher Doctor Sb2Te3 is an end point compound of the GeTe鈥揝b2Te3 pseudobinary tie-line and an important component of heterogeneously structured phase Topologically protected spin sp.info The good, the bad, and the uglySpin liquids might also provide a medium for topologically protected quantum computations. (total spin being the generator of the order-parameter rotations) electron diffusion order ~ magnon diffusion X domain-wall motion (easy axis) S z x y ' spin super铿倁id (easy plane) (assuming spin-rotational invariance around the z axis)


			
Spin-charge interconversion in heterostructures based on

Spin-charge interconversion in heterostructures based on

Feb 17, 2020 · Spintronics, or spin-electronics, is the branch of solid-state physics which studies spin generation, transport and manipulation in solid-state environments [].Since the discovery of the giant magnetoresistence (GMR) [2, 3], spin-based devices have attracted a growing interest thanks to their industrial applications.In particular, sensors based on the GMR or tunneling sp.info Gate control of spin transport in multilayer graphene Here we report a chalcogenide superlattice composed of GeTe and Sb2Te3 layers that have a topologically protected spin diffusion length exceeding 100 渭m at sp.info Topological insulators for efficient spin鈥搊rbit torques May 25, 2021 · TIs are a class of materials with spin鈥搊rbit coupling that is strong enough to invert the sequence of bands at certain high symmetry points and leads to topologically protected conducing electronic states at the surfaces 11鈥14 11. L. Fu, C. L. Kane, and E. J. Mele, Phys. Rev. Lett. 98, 106803 (2007).sp.info The high-field magnetoresistance of Sb 2 Te 3 (a) and T2 Here we report a chalcogenide superlattice composed of GeTe and Sb2Te3 layers that have a topologically protected spin diffusion length exceeding 100 渭m at


			
Ferrimagnetism and reentrant behavior in a coronene-like

Ferrimagnetism and reentrant behavior in a coronene-like

Dec 08, 2021 · For the spin-3/2 and 2 atoms in the superlattice with double-layer Ising model, both the transverse field and anisotropy are included. Novel features, such as the possibility of compensation and reentrant behaviors, are found for the ferrimagnetic properties in such systems.sp.info Energy Landscape of 3D Spin Hamiltonians with Energy Landscape of 3D Spin Hamiltonians with Topological Order Sergey Bravyi1 and Jeongwan Haah2 1IBM Watson Research Center, Yorktown Heights, New York 10598, USA 2Institute for Quantum Information, California Institute of Technology, Pasadena, California 91125, USA (Received 6 June 2011; published 6 October 2011) We explore the feasibility of a sp.info Effect of inter-layer spin diffusion on skyrmion motion in Jul 03, 2019 · For the spin torque obtained with the self-consistent spin transport solver we see two distinct contributions. In addition to the spin torque due to SHE alone, namely SOT, an equally important contribution is obtained due to inter-layer spin diffusion. To demonstrate this, skyrmions have been driven with and without SHE contribution.sp.info Pure spin current devices based on ferromagnetic Two-dimensional topological insulators possess two counter propagating edge channels with opposite spin direction. Recent experimental progress allowed to create ferromagnetic topological insulators realizing a quantum anomalous Hall (QAH) state. In the QAH state one of the two edge channels disappears due to the strong ferromagnetic exchange field. We investigate


			
Hydrodynamics and topological spin currents in amorphous

Hydrodynamics and topological spin currents in amorphous

Spin superfluidity, i.e., coherent spin transport mediated by topologically stable textures, offers promising perspectives for the design of energetically efficient devices for applications in spintronics. In contrast to spinor condensates and 3He, superfluid spin transport in solid state is limited by parasitic anisotropies rooted in relativistic interactions and spatial inhomogeneities. sp.info PHYSICAL REVIEW B102, 014420 (2020)spin transport properties of this quantum material. From the spin pumping measurements we derive a spin diffusion length of 1.76 nm in 尾-PdBi 2 and an interfacial spin-mixing con-ductance 4.07 ×1019 m鈭2. Importantly, the room temperature value of the spin Hall angle 0.037 in 尾-PdBi 2 was determined,sp.info Weyl node assisted conductivity switch in The interfacial phase-change memory (iPCM) GeTe/Sb2Te3, promising candidates for the next generation non-volatile random-access memories, exhibits fascinating topological properties. Depending on the atomic-layer-stacking sequence of the GeTe block, the iPCM can be either in the SET (Ge-Te-Ge-Te) or RESET (Te-Ge-Ge-Te) states, where the former exhibits sp.info Temperature dependent evolution of local structure in Jan 15, 2021 · In addition, double layers of Te with intrachain distances of 0.28 nm and GeTe 2 building units being formed by in-diffusion of Ge into the Te layers were also found in the GST layers close to the Si(1 1 1) substrate , . While GST structures formed at low deposition temperatures represent single units, GST structures grown at higher deposition


			
 Non-local opto-electrical spin injection and

Non-local opto-electrical spin injection and

Non-local carrier injection/detection schemes lie at the very foundation of information manipulation in integrated systems. This paradigm consists in controlling with an external signal the channel where charge carriers flow between a 鈥渟ource鈥 and a well separated 鈥渄rain.鈥 The next generation electronics may operate on the spin of carriers in addition to their charge and germanium sp.info Andre Bisig 鈥 R&D Reliability Engineer 鈥 II-VI We show that incoherent spin diffusion indeed produces an additional spatially dependent torque of the form 鈭尖垏2[m×(u鈰呪垏)m]+尉鈭2[(u鈰呪垏)m], where m is the local magnetization direction, u is the direction of injected current, and 尉 is a parameter characterizing the spin dynamics (precession, dephasing, and spin-flip).sp.info Thin films of topological Kondo insulator candidate SmB6 Jan 01, 2020 · The strong spin-orbit coupling (SOC) of topological insulators (TIs) manifests itself in exotic ways, such as the spin-chiral surface state ().The locking between the momentum and the spin of carriers on the surface state, together with the SOC, may lead to new applications in spintronics ().It has been shown that the TIs have giant spin Hall angles and that the chiral sp.info (PDF) Role of an additional interfacial spin-transfer Ts is the total spin-torque modeled using the spin mixing conductance. term, which includes contributions from SOT and ISTT, and Another important source of vertical spin current is due to can be computed self-consistently using the drift-diffusion the NM/FM interlayer diffusion of a spin accumulation gener- model where the spin current density

Send Message