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相关论文: Experimental Demonstration of XOR Operation in Gra…

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Room temperature operation of a spin exclusive or (XOR) gate was demonstrated in lateral spin valve devices with nondegenerate silicon (Si) channels. The spin XOR gate is a fundamental part of the magnetic logic gate (MLG) that enables…

应用物理 · 物理学 2020-04-15 R. Ishihara , Y. Ando , S. Lee , M. Goto , S. Miwa , Y. Suzuki , H. Koike , M. Shiraishi

All-spin-based computing combining logic and nonvolatile magnetic memory is promising for emerging information technologies. However, the realization of a universal spin logic operation representing a reconfigurable building block with…

介观与纳米尺度物理 · 物理学 2024-10-11 Dmitrii Khokhriakov , Shehrin Sayed , Anamul Md. Hoque , Bogdan Karpiak , Bing Zhao , Supriyo Datta , Saroj P. Dash

We demonstrate spin injection into a graphene thin film with high reliability by using non-local magnetoresistance (MR) measurements, in which the electric current path is completely separated from the spin current path. Using these…

Magnetic materials have found wide application ranging from electronics and memories to medicine. Essential to these advances is the control of the magnetic order. To date, most room-temperature applications have a fixed magnetic moment…

This paper presents a novel design concept for spintronic nanoelectronics that emphasizes a seamless integration of spin-based memory and logic circuits. The building blocks are magneto-logic gates based on a hybrid graphene/ferromagnet…

The XOR Boolean logic gate is widely used in many applications such as encryption (XOR ciphers), binary addition (half- and full-adders), error detection (parity bits), etc. but is challenging to construct because of its demanding…

介观与纳米尺度物理 · 物理学 2026-03-10 Supriyo Bandyopadhyay

Graphene has remarkable opportunities for spintronics due to its high mobility and long spin diffusion length, especially when encapsulated in hexagonal boron nitride (h-BN). Here, for the first time, we demonstrate gate-tunable spin…

介观与纳米尺度物理 · 物理学 2018-07-25 Jinsong Xu , Simranjeet Singh , Jyoti Katoch , Guanzhong Wu , Tiancong Zhu , Igor Zutic , Roland K. Kawakami

The introduction and control of ferromagnetism in graphene opens up a range of new directions for fundamental and applied studies. Several approaches have been pursued so far, such as introduction of defects, functionalization with adatoms,…

介观与纳米尺度物理 · 物理学 2016-11-04 J. C. Leutenantsmeyer , A. A. Kaverzin , M. Wojtaszek , B. J. van Wees

Due to its two dimensional nature, ferromagnetism and charge doping can be induced by proximity and electric field effects in graphene. Taking advantage of these features, we propose an electrically engineered spin valve by combining two…

介观与纳米尺度物理 · 物理学 2017-05-03 Yu Song

We examine spin dependent transport in a quantum interferometer composed of magnetic atomic sites based on transfer matrix formalism. The interferometer, threaded by a magnetic flux $\phi$, is symmetrically attached to two semi-infinite…

介观与纳米尺度物理 · 物理学 2011-03-24 Moumita Dey , Santanu K. Maiti , S. N. Karmakar

Electrical spin injection from ferromagnetic metals into graphene is hindered by the impedance mismatch between the two materials. This problem can be reduced by the introduction of a thin tunnel barrier at the interface. We present room…

介观与纳米尺度物理 · 物理学 2009-11-28 C. Józsa , M. Popinciuc , N. Tombros , H. T. Jonkman , B. J. van Wees

An analysis of a novel magnetic field sensor based on a graphene spin capacitor is presented. The proposed device consists of graphene nanoribbons on top of an insulator material connected to a ferromagnetic source/drain. The time evolution…

介观与纳米尺度物理 · 物理学 2015-05-19 Y. G. Semenov , J. M. Zavada , K. W. Kim

Magnetic gates in close proximity to graphene can induce ferromagnetic correlations. We study the effect of such induced magnetization dependent Zeeman splittings on the graphene transport properties. We estimate that induced spin…

介观与纳米尺度物理 · 物理学 2008-03-07 H. Haugen , Daniel Huertas-Hernando , Arne Brataas

Using first-principles calculations, we explore the possibility of functionalized graphene as high performance two-dimensional spintronics device. Graphene functionalized with O on one side and H on the other side in the chair conformation…

材料科学 · 物理学 2010-12-14 Linze Li , Rui Qin , Hong Li , Lili Yu , Qihang Liu , Guangfu Luo , Jing Lu , Zhengxiang Gao

We show that graphene with Mn adatoms trapped at single vacancies feature spin-dependent Seebeck effect, thus enabling the use of this material for spin caloritronics. A gate potential can be used to tune its thermoelectric properties in a…

介观与纳米尺度物理 · 物理学 2014-02-25 Alberto Torres , Matheus P. Lima , A. Fazzio , Antônio J. R. da Silva

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…

In magnetic materials nontrivial spin textures may emerge owing to the competition among different types of magnetic interactions. Among such spin textures, chiral magnetic solitons represent topologically protected spin configurations with…

介观与纳米尺度物理 · 物理学 2019-10-18 Konstantinos Koumpouras , Dmitry Yudin , Christoph Adelmann , Anders Bergman , Olle Eriksson , Manuel Pereiro

Graphene is a light material for long-distance spin transport due to its low spin-orbit coupling, which at the same time is the main drawback to exhibit a sizeable spin Hall effect. Decoration by light atoms has been predicted to enhance…

Unique electronic spin textures in topological states of matter are promising for emerging spin-orbit driven memory and logic technologies. However, there are several challenges related to the enhancement of their performance, electrical…

介观与纳米尺度物理 · 物理学 2020-08-10 Dmitrii Khokhriakov , Anamul Md. Hoque , Bogdan Karpiak , Saroj P. Dash

We address XOR gate response in a mesoscopic ring threaded by a magnetic flux $\phi$. The ring, composed of identical quantum dots, is symmetrically attached to two semi-infinite one-dimensional metallic electrodes and two gate voltages,…

介观与纳米尺度物理 · 物理学 2009-11-20 Santanu K. Maiti
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