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相关论文: Spin-orbit and exchange proximity couplings in gra…

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Proximity effect is a very powerful approach and has been widely applied to induce electron correlations such as: superconductivity, magnetism and spin-orbit effects at the interface of heterostructure quantum materials. However, proximity…

Rashba spin-orbit coupling is a quintessential spin interaction appearing in virtually any electronic heterostructure. Its paradigmatic spin texture in the momentum space forms a tangential vector field. Using first-principles…

介观与纳米尺度物理 · 物理学 2024-02-20 Tobias Frank , Paulo E. Faria Junior , Klaus Zollner , Jaroslav Fabian

Graphene consists in a single-layer carbon crystal where 2$p_z$ electrons display a linear dispersion relation in the vicinity of the Fermi level, conveniently described by a massless Dirac equation in $2+1$ spacetime. Spin-orbit effects…

介观与纳米尺度物理 · 物理学 2017-04-04 B. Berche , F. Mireles , E. Medina

We investigate the proximity-induced spin-orbit coupling in heterostructures of twisted graphene and monolayers of transition-metal dichalcogenides (TMDCs) MoS$_2$, WS$_2$, MoSe$_2$, and WSe$_2$ from first principles. We identify strain,…

介观与纳米尺度物理 · 物理学 2023-06-05 Thomas Naimer , Klaus Zollner , Martin Gmitra , Jaroslav Fabian

We investigate the proximity spin-orbit and exchange couplings in ABA and ABC trilayer graphene encapsulated within monolayers of semiconducting transition-metal dichalcogenides and the ferromagnetic semiconductor Cr$_2$Ge$_2$Te$_6$.…

介观与纳米尺度物理 · 物理学 2022-03-22 Klaus Zollner , Martin Gmitra , Jaroslav Fabian

We report experimental investigations of spin-to-charge current conversion and charge transfer dynamics (CT) at the interface of graphene/WS$_2$ van der Waals heterostructure. Pure spin current was produced by the spin precession in the…

We theoretically study the proximity spin-orbit coupling in graphene on transition-metal dichalcogenides monolayer stacked with arbitrary twist angles. We find that the relative rotation greatly enhances the spin splitting of graphene,…

介观与纳米尺度物理 · 物理学 2019-03-06 Yang Li , Mikito Koshino

Angle-twisting engineering has emerged as a powerful tool for modulating electronic properties in van der Waals heterostructures. Recent theoretical works have predicted the modulation of spin texture in graphene-based heterostructures by…

Van der Waals heterostructures provide a versatile platform for tailoring electronic properties through the integration of two-dimensional materials. Among these combinations, the interaction between bilayer graphene and transition metal…

介观与纳米尺度物理 · 物理学 2024-10-30 M. Masseroni , M. Gull , A. Panigrahi , N. Jacobsen , F. Fischer , C. Tong , J. D. Gerber , M. Niese , T. Taniguchi , K. Watanabe , L. Levitov , T. Ihn , K. Ensslin , H. Duprez

We present first-principles calculations of the electronic band structure and spin-orbit effects in graphene functionalized with methyl molecules in dense and dilute limits. The dense limit is represented by a 2$\times$2 graphene supercell…

介观与纳米尺度物理 · 物理学 2016-01-27 Klaus Zollner , Tobias Frank , Susanne Irmer , Martin Gmitra , Denis Kochan , Jaroslav Fabian

Graphene is an excellent material for long distance spin transport but allows little spin manipulation. Transition metal dichalcogenides imprint their strong spin-orbit coupling into graphene via proximity effect, and it has been predicted…

We analyze the spin-orbit coupling effects in a three-degree twisted bilayer heterostructure made of graphene and an in-plane ferroelectric SnTe, with the goal of transferring the spin-orbit coupling from SnTe to graphene, via the proximity…

介观与纳米尺度物理 · 物理学 2024-07-01 Marko Milivojević , Martin Gmitra , Marcin Kurpas , Ivan Štich , Jaroslav Fabian

Graphene, as a material with a small intrinsic spin-orbit interaction of approximately 1 $\mu$eV, has a limited application in spintronics. Adsorption of graphene on the surfaces of heavy-metals was proposed to induce the strong…

材料科学 · 物理学 2018-12-27 Elena Voloshina , Yuriy Dedkov

Coupling graphene's excellent electron and spin transport properties with higher spin-orbit coupling material allows tackling the hurdle of spin manipulation in graphene, due to the proximity to van-der-Waals layers. Here we use magneto…

介观与纳米尺度物理 · 物理学 2022-03-08 Chithra H. Sharma , Pai Zhao , Lars Tiemann , Marta Prada , Arti Dangwal Pandey , Andreas Stierle , Robert. H. Blick

We investigate the effect of the twist angle on the proximity spin-orbit coupling (SOC) in graphene/NbSe$_2$ heterostructures from first principles. The low-energy Dirac bands of several different commensurate twisted supercells are fitted…

介观与纳米尺度物理 · 物理学 2024-05-01 Thomas Naimer , Martin Gmitra , Jaroslav Fabian

In this article we review recent work on van der Waals (vdW) systems in which at least one of the components has strong spin-orbit coupling. We focus on a selection of vdW heterostructures to exemplify the type of interesting electronic…

介观与纳米尺度物理 · 物理学 2020-06-04 Enrico Rossi , Christopher Triola

Van der Waals interactions with transition metal dichalcogenides was shown to induce strong spin-orbit coupling (SOC) in graphene, offering great promises to combine large experimental flexibility of graphene with unique tuning capabilities…

介观与纳米尺度物理 · 物理学 2023-10-03 Qing Rao , Wun-Hao Kang , Hongxia Xue , Ziqing Ye , Xuemeng Feng , Kenji Watanabe , Takashi Taniguchi , Ning Wang , Ming-Hao Liu , Dong-Keun Ki

Graphene/MoS2 heterostructures are formed by combining the nanosheets of graphene and monolayer MoS2. The electronic features of both constituent monolayers are rather well-preserved in the resultant heterostructure due to the weak van der…

材料科学 · 物理学 2020-02-13 Sobhit Singh , Abdulrhman M. Alsharari , Sergio E. Ulloa , Aldo H. Romero

Proximity effects are one of the pillars of exotic phenomena and technological applications of two dimensional materials. However, the interactions nature depends strongly on the materials involved, their crystalline symmetries, and…

介观与纳米尺度物理 · 物理学 2022-01-11 Armando Pezo , Zeila Zanolli , Nils Wittemeier , Pablo Ordejon , Adalberto Fazzio , Stephan Roche , Jose H. Garcia

The proximity-induced spin-orbit coupling (SOC) in heterostructures of twisted graphene and topological insulators (TIs) Bi$_2$Se$_3$ and Bi$_2$Te$_3$ is investigated from first principles. To build commensurate supercells, we strain…

介观与纳米尺度物理 · 物理学 2023-06-07 Thomas Naimer , Jaroslav Fabian
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