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相关论文: Giant spin transfer torque in atomically thin magn…

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We explore higher order dynamical effects in the transport through a two-dimensional nanoscale electron system embedded in a three-dimensional far-infrared photon cavity. The nanoscale system is considered to be a short quantum wire with a…

介观与纳米尺度物理 · 物理学 2020-12-11 Vidar Gudmundsson , Nzar Rauf Abdullah , Chi-Shung Tang , Andrei Manolescu , Valeriu Moldoveanu

We study electron transport in monolayer molybdenum disulfide MoS$_2$ subjected to a magnetic barrier. Our analysis employs a full-band continuum model to capture the relevant physical phenomena. We focus on how electron energy, magnetic…

介观与纳米尺度物理 · 物理学 2025-07-16 Ahmed Jellal , Nadia Benlakhouy , Pablo Díaz , David Laroze

An influence of spin-orbit interaction on the tunneling between two 2D electron layers is considered. Particular attention is addressed to the relation between the contribution of Rashba and Dresselhaus types. It is shown that without…

其他凝聚态物理 · 物理学 2009-11-13 I. V. Rozhansky , N. S. Averkiev

Ferroelectricity in atomically thin bilayer structures has been recently predicted1 and measured[2-4] in two-dimensional (2D) materials with hexagonal non-centrosymmetric unit-cells. Interestingly, the crystal symmetry translates lateral…

Based upon first-principles calculations, we report ultralow Gilbert damping in two-dimensional (2D) van derWaals (vdW) ferromagnets. The low damping occurs at weak scattering because mirror symmetry prohibits intraband transitions. The…

材料科学 · 物理学 2025-10-20 Weizhao Chen , Yu Zhang , Yi Liu , Zhe Yuan

All-electrical methods for nucleating, detecting, and manipulating spin textures in two-dimensional (2D) van der Waals (vdW) magnets can serve as fundamental building blocks for multi-state spintronic memory, logic, and neuromorphic…

介观与纳米尺度物理 · 物理学 2025-12-09 Bing Zhao , Roselle Ngaloy , Lars Sjöström , Saroj P. Dash

According to the recent studies on sliding/moire ferroelectricity, most 2D van der Waals nonferroelectric monolayers can become ferroelectric via multilayer stacking. In this paper we propose that similar strategy can be used to induce…

材料科学 · 物理学 2025-07-24 Yuxuan Sheng , Junwei Liu , Jia Zhang , Menghao Wu

The advent of two-dimensional (2D) crystals has led to numerous scientific breakthroughs. Conventional 2D systems have in-plane covalent bonds and a weak out-of-plane van-der-Waals bond. Here we report a new type of 2D material composed of…

The unveiling of 2D van der Waals magnetism in 2017 ignited a surge of interest in low-dimensional magnetism. With dimensions reduced, research has delved into facile electric control of 2D magnetism, high-quality heterostructure design,…

介观与纳米尺度物理 · 物理学 2024-06-19 Han Zhong , Douglas Z. Plummer , Pengcheng Lu , Yang Li , Polina A. Leger , Yingying Wu

Van der Waals (vdW) ferromagnets are an important class of materials for spintronics applications. The recent discovery of atomically vdW magnets CrI$_3$ and Cr$_2$Ge$_2$Te$_6$ has triggered a renaissance in the area of two-dimensional (2D)…

强关联电子 · 物理学 2021-10-22 Yu Liu , Zhixiang Hu , Eli Stavitski , Klaus Attenkofer , C. Petrovic

Electrical switching of magnetization via spin-orbit torque (SOT) is of great potential in fast, dense, energy-efficient nonvolatile magnetic memory and logic technologies. Recently, enormous efforts have been stimulated to investigate…

材料科学 · 物理学 2023-04-26 Xin Lin , Lijun Zhu

Valleytronics is rapidly emerging as an exciting area of basic and applied research. In two dimensional systems, valley polarisation can dramatically modify physical properties through electron-electron interactions as demonstrated by such…

The diversity of 2D materials and their van der Waals (vdW) stacking presents a fertile ground for engineering novel multifunctional materials and quantum states of matter. This permits unique opportunities to tailor the electronic…

Spin is an intrinsically quantum property, characterized by angular momentum. A change in the spin state is equivalent to a change in the angular momentum or mechanical torque. This spin-induced torque has been invoked as the intrinsic…

介观与纳米尺度物理 · 物理学 2009-09-30 Guiti Zolfagharkhani , Alexei Gaidarzhy , Pascal Degiovanni , Stefan Kettemann , Peter Fulde , Pritiraj Mohanty

We investigate electron transport through a mixed-valence molecular complex in which an excess electron can tunnel between hetero-valent transition metal ions, each having a fixed localized spin. We show that in this class of molecules the…

介观与纳米尺度物理 · 物理学 2009-03-11 F. Reckermann , M. Leijnse , M. R. Wegewijs

We report that an external electric field applied normal to bilayers of transition-metal dichalcogenides TX2, M = Mo, W, X = S, Se, creates significant spin-orbit splittings and reduces the electronic band gap linearly with the field…

材料科学 · 物理学 2015-06-22 Nourdine Zibouche , Pier Philipsen , Agnieszka Kuc , Thomas Heine

Recent observations of large unconventional spin-orbit torques in van der Waals (vdW) materials are driving intense interest for energy-efficient spintronic applications. A key limitation of ferromagnet (FM)/vdW heterostructures is their…

We investigate the spin-transfer torque in a magnetic multilayer structure by means of a spin-diffusion model. The torque in the considered system, consisting of two magnetic layers separated by a conducting layer, is caused by a…

We calculate the contribution to the spin transfer torque from sequential tunneling through impurities in a magnetic tunnel junction. For a junction with weakly polarized ferromagnetic contacts, the torque is found to be in the plane…

介观与纳米尺度物理 · 物理学 2009-07-31 Turan Birol , Piet W. Brouwer

We propose spin valves where a 2D non-magnetic conductor is intercalated between two ferromagnetic insulating layers. In this setup, the relative orientation of the magnetizations of the insulating layers can have a strong impact on the…

介观与纳米尺度物理 · 物理学 2018-08-15 C. Cardoso , D. Soriano , N. A. García-Martínez , J. Fernández-Rossier