Large Proximity-Induced Spin Lifetime Anisotropy in Transition Metal Dichalcogenide/Graphene Heterostructures

Abstract

Van-der-Waals heterostructures have become a paradigm for designing new materials and devices, in which specific functionalities can be tailored by combining the properties of the individual 2D layers. A single layer of transition metal dichalcogenide (TMD) is an excellent complement to graphene (Gr), since the high quality of charge and spin transport in Gr is enriched with the large spin-orbit coupling of the TMD via proximity effect. The controllable spin-valley coupling makes these heterostructures particularly attractive for spintronic and opto-valleytronic applications. In this work, we study spin precession in a monolayer MoSe2/Gr heterostructure and observe an unconventional, dramatic modulation of the spin signal, showing one order of magnitude longer lifetime of out-of-plane spins (40 ps) compared with that of in-plane spins (3.5 ps). This demonstration of a large spin lifetime anisotropy in TMD/Gr heterostructures, is a direct evidence of induced spin-valley coupling in Gr and provides an accessible route for manipulation of spin dynamics in Gr, interfaced with TMDs.

arXiv commentMain manuscript(6 pages, 3 figures), supplementary info(19 pages, 10 figures)

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Cited by in corpus (120)

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• Strongly anisotropic spin relaxation in graphene/transition metal dichalcogenide heterostructures at room temperature
• Charge-to-Spin Conversion by the Rashba-Edelstein Effect in 2D van der Waals Heterostructures up to Room Temperature
• Spin-orbit driven band inversion in bilayer graphene by van der Waals proximity effect
• Giant Spin Lifetime Anisotropy in Graphene Induced by Proximity Effects
• Spin transport in graphene/transition metal dichalcogenide heterostructures
• Tunable room-temperature spin galvanic and spin Hall effects in van der Waals heterostructures
• Large spin relaxation anisotropy and valley-Zeeman spin-orbit coupling in WSe2/Gr/hBN heterostructures
• Twist-angle dependence of the proximity spin-orbit coupling in graphene on transition-metal dichalcogenides
• Quantum Anomalous Hall Effects in Graphene from Proximity-Induced Uniform and Staggered Spin-Orbit and Exchange Coupling
• Induced spin-orbit coupling in twisted graphene-TMDC heterobilayers: twistronics meets spintronics
• Strong Spin-Orbit Interaction Induced in Graphene by Monolayer WS${}_2$
• Large multi-directional spin-to-charge conversion in low symmetry semimetal MoTe${}_2$ at room temperature
• Spin Proximity Effects in Graphene/Topological Insulator Heterostructures
• Linear Scaling Quantum Transport Methodologies
• Twist-angle dependent proximity induced spin-orbit coupling in graphene/transition-metal dichalcogenide heterostructures
• Spin-split band hybridization in graphene proximitized with $\alpha$-RuCl${}_3$ nanosheets
• Protected pseudohelical edge states in proximity graphene ribbons and flakes
• KITE: high-performance accurate modelling of electronic structure and response functions of large molecules, disordered crystals and heterostructures
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• Electrical spin injection, transport, and detection in graphene-hexagonal boron nitride van der Waals heterostructures: progress and perspectives
• Strong and Tunable Spin Lifetime Anisotropy in Dual-Gated Bilayer Graphene
• Observation of spin-valley coupling induced large spin lifetime anisotropy in bilayer graphene
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• Spin-Orbit Interaction Induced in Graphene by Transition-Metal Dichalcogenides
• Gate tunability of highly efficient spin-to-charge conversion by spin Hall effect in graphene proximitized with WSe${}_2$
• Charge-to-spin conversion in twisted graphene/WSe${}_2$ heterostructures
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• Microscopic Theory of Spin Relaxation Anisotropy in Graphene with Proximity-Induced Spin-Orbit Coupling
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• Gate-tunable Strong Spin-orbit Interaction in Two-dimensional Tellurium Probed by Weak-antilocalization
• Twistronics in graphene-based van der Waals structures
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• Direct detection of induced magnetic moment and efficient spin-to-charge conversion in graphene/ferromagnetic structures
• Counterintuitive gate dependence of weak antilocalization in bilayer graphene/WSe${}_2$ heterostructures
• Ballistic transport spectroscopy of spin-orbit-coupled bands in monolayer graphene on WSe${}_2$
• Proximity effects in graphene on monolayers of transition-metal phosphorus trichalcogenides MPX${}_3$
• Unconventional charge-to-spin conversions in graphene/MoTe2 van der Waals heterostructures
• Spin Hall Effect in Bilayer Graphene Combined with an Insulator up to Room Temperature
• Bilayer graphene encapsulated within monolayers of WS${}_2$ or Cr${}_2$Ge${}_2$Te${}_6$: Tunable proximity spin-orbit or exchange coupling
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• Strain Anisotropy Driven Spontaneous Formation of Nanoscrolls from Two-Dimensional Janus Layers
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• Electron-Spin-Resonance in a proximity-coupled MoS2/Graphene van-der-Waals heterostructure
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• Hanle lineshapes and spin-rotation signatures from in-plane anisotropic spin relaxation in heterogeneous spin devices
• Gate tunable spin-charge interconversion in a graphene/ReS${}_2$ heterostructure up to room temperature
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