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In spintronics, the ability to transport magnetic information often depends on the existence of a spin current traveling between two different magnetic objects acting as source and probe. A large fraction of this information never reaches…

Mesoscale and Nanoscale Physics · Physics 2015-03-17 F. S. M. Guimarães , A. T. Costa , R. B. Muniz , M. S. Ferreira

We propose a non-magnetic, pseudospin-based version of a spin valve, in which the pseudospin polarization in neighboring regions of a graphene bilayer is controlled by external gates. Numerical calculations demonstrate a large on-off ratio…

Mesoscale and Nanoscale Physics · Physics 2009-06-18 Pablo San-Jose , Elsa Prada , Edward McCann , Henning Schomerus

The utilization of large-area graphene grown by chemical vapour deposition (CVD) is crucial for the development of scalable spin interconnects in all-spin-based memory and logic circuits. However, the fundamental influence of the presence…

Mesoscale and Nanoscale Physics · Physics 2020-12-07 Dmitrii Khokhriakov , Bogdan Karpiak , Anamul Md. Hoque , Bing Zhao , Subir Parui , Saroj P. Dash

Graphene spintronics offers a promising route to achieve low power 2D electronics for next generation classical and quantum computation. As device length scales are reduced to the limit of the electron mean free path, the transport…

Spintronic devices that utilize the spin degree of freedom of a charge carrier to store, process or transmit information, may be better performers than their traditional electronic counterparts if special properties of "spin" are exploited…

Mesoscale and Nanoscale Physics · Physics 2007-05-23 S. Bandyopadhyay

Spin dependent electron transport measurements on graphene are of high importance to explore possible spintronic applications. Up to date all spin transport experiments on graphene were done in a semi-classical regime, disregarding quantum…

Mesoscale and Nanoscale Physics · Physics 2014-05-01 M. H. D. Guimaraes , P. J. Zomer , I. J. Vera-Marun , B. J. van Wees

Spin information processing is a possible new paradigm for post-CMOS (complementary metal-oxide semiconductor) electronics and efficient spin propagation over long distances is fundamental to this vision. However, despite several decades of…

Electronic carriers in graphene show a high carrier mobility at room temperature. Thus, this system is widely viewed as a potential future charge-based high-speed electronic-material to complement- or replace- silicon. At the same time, the…

Mesoscale and Nanoscale Physics · Physics 2012-12-04 R. G. Mani , J. Hankinson , C. Berger , W. A. de Heer

Graphene is a very promising material in spintronics due to both its high electric mobility and low intrinsic spin-obit coupling. Electronic spins can be injected from a ferromagnetic material through a tunnel contact into graphene owing to…

Mesoscale and Nanoscale Physics · Physics 2022-06-08 Bin Yang , Winfried Teizer

Graphene is a material with great potential in the field of spintronics, combining good conductivity with low spin--orbit coupling (SOC), which allows for the transport of spin currents over long distances. However, this lack of SOC also…

Mesoscale and Nanoscale Physics · Physics 2025-08-19 Eoin Dolan , Zhendong Chi , Haozhe Yang , Luis E. Hueso , Fèlix Casanova

Two-dimensional materials offer new opportunities for both fundamental science and technological applications, by exploiting the electron spin. While graphene is very promising for spin communication due to its extraordinary electron…

Mesoscale and Nanoscale Physics · Physics 2017-06-08 Ahmet Avsar , Jun You Tan , Marcin Kurpas , Martin Gmitra , Kenji Watanabe , Takashi Taniguchi , Jaroslav Fabian , Barbaros Ozyilmaz

Atomically thin two-dimensional layer of honeycomb crystalline carbon known as graphene is a promising system for electronics. It has a point-like Fermi surface, which is very sensitive to external potentials. In particular, Zeeman magnetic…

Mesoscale and Nanoscale Physics · Physics 2014-11-18 M. Khodas , I. A. Zaliznyak , D. E. Kharzeev

Two dimensional (2D) materials provide a unique platform to explore the full potential of magnetic proximity driven phenomena, which can be further used for applications in next generation spintronic devices. Of particular interest is to…

This article aims at providing a self-contained introduction to theoretical modeling of gate-induced carrier density in graphene sheets. For this, relevant theories are introduced, namely, classical capacitance model (CCM), self-consistent…

Mesoscale and Nanoscale Physics · Physics 2013-06-18 Ming-Hao Liu

Long-distance spin transport through anti-ferromagnetic insulators (AFMIs) is a long-standing goal of spintronics research. Unlike conventional spintronics systems, monolayer graphene in quantum Hall regime (QH) offers an unprecedented…

Realisation of practical spintronic devices relies on the ability to create and detect pure spin currents. In graphene-based spin valves this is usually achieved by injection of spin-polarized electrons from ferromagnetic contacts via a…

We demonstrate new mechanisms for gate tunable current partition at topological zero-line intersections in a graphene-based current splitter. Based on numerical calculations of the non-equilibrium Green's functions and Landauer-B\"{u}ttiker…

Mesoscale and Nanoscale Physics · Physics 2017-06-21 Yafei Ren , Ke Wang , Xinzhou Deng , Shengyuan A. Yang , Jeil Jung , Zhenhua Qiao

Spintronics involves the development of low-dimensional electronic systems with potential use in quantum-based computation. In graphene, there has been significant progress in improving spin transport characteristics by encapsulation and…

We study the spin current injected by spin pumping into single layer graphene and the two-dimensional electron gas (2DEG) with ferromagnetic contacts using scattering theory. The spin currents pumped into graphene are very distinct from…

Mesoscale and Nanoscale Physics · Physics 2016-11-30 Takuya Inoue , Gerrit E. W. Bauer , Kentaro Nomura

We consider graphene on monolayer WSe$_2$ and the spin-orbit coupling induced by the transition-metal dichalcogenide substrate for application to spin-active devices. We study quantum dots and graphene quantum rings as tunable spin filters…

Mesoscale and Nanoscale Physics · Physics 2018-07-27 Alina Mrenca-Kolasinska , Bartlomiej Rzeszotarski , Bartlomiej Szafran