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Voltage-controlled ...
Voltage-controlled inversion of tunnel magnetoresistance in epitaxial nickel/graphene/MgO/cobalt junctions
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- Godel, F. (author)
- IPCMS Institut de Physique et Chimie des Materiaux de Strasbourg
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- Mutta, Venkata Kamalakar, 1979 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Doudin, B. (author)
- IPCMS Institut de Physique et Chimie des Materiaux de Strasbourg
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- Henry, Y. (author)
- IPCMS Institut de Physique et Chimie des Materiaux de Strasbourg
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- Halley, D. (author)
- IPCMS Institut de Physique et Chimie des Materiaux de Strasbourg
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- Dayen, J. F. (author)
- IPCMS Institut de Physique et Chimie des Materiaux de Strasbourg
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(creator_code:org_t)
- AIP Publishing, 2014
- 2014
- English.
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In: Applied Physics Letters. - : AIP Publishing. - 0003-6951 .- 1077-3118. ; 105:15, s. Art. no. 152407-
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Abstract
Subject headings
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- We report on the fabrication and characterization of vertical spin-valve structures using a thick epitaxial MgO barrier as spacer layer and a graphene-passivated Ni film as bottom ferromagnetic electrode. The devices show robust and scalable tunnel magnetoresistance, with several changes of sign upon varying the applied bias voltage. These findings are explained by a model of phonon-assisted transport mechanisms that relies on the peculiarity of the band structure and spin density of states at the hybrid graphene vertical bar Ni interface.
Subject headings
- TEKNIK OCH TEKNOLOGIER -- Annan teknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Other Engineering and Technologies (hsv//eng)
Publication and Content Type
- art (subject category)
- ref (subject category)
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