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Bibliographic record number: 727768

Journal

Authors: Lazić, Predrag; Sipahi, G.M.; Kawakami, R.K.; Žutić, Igor
Title: Graphene spintronics: Spin injection and proximity effects from first principles
( Graphene spintronics: Spin injection and proximity effects from first principles )
Source: Physical review. B, Condensed matter and materials physics (1098-0121) 90 (2014), 8;
Paper type: article
Keywords: magnetic tunnel-junctions ; room-temperature ; threshold reduction ; ferromagnetic-films ; band-structure ; transport ; charge ; magnetoresistance ; precession ; interface
( magnetic tunnel-junctions ; room-temperature ; threshold reduction ; ferromagnetic-films ; band-structure ; transport ; charge ; magnetoresistance ; precession ; interface )
Abstract:
Ferromagnet/graphene (F/Gr) junctions are important building blocks for graphene spintronics. While simple models of spin injection are very successful for macroscopic metallic junctions, they reveal many deficiencies in describing F/Gr junctions. First-principles methods are key to assess such Gr-based junctions, but the computational cost is often too high. We focus on Ni(111)/Gr junctions and include van der Waals interactions from first principles, crucial for their correct description. We formulate a computationally inexpensive model to examine the nonuniformity and bias dependence of spin injection and elucidate proximity effects using spin polarization maps. Our results could extend the applicability of simple spin injection models in F/Gr junctions.
Project / theme: 098-0352828-2863
Original language: eng
Citation databases: Current Contents Connect (CCC)
Scopus
SCI-EXP, SSCI i/ili A&HCI
Science Citation Index Expanded (SCI-EXP) (sastavni dio Web of Science Core Collectiona)
Category: Znanstveni
Research fields:
Physics
URL: https://doi.org/10.1103/PhysRevB.90.085429
http://journals.aps.org/prb/abstract/10.1103/PhysRevB.90.085429
Broj citata:
Altmetric:
DOI: 10.1103/PhysRevB.90.085429
URL cjelovitog rada:
Google Scholar: Graphene spintronics: Spin injection and proximity effects from first principles
Contrib. to CROSBI by: Damir Šokčević (Damir.Sokcevic@irb.hr), 6. Stu. 2014. u 15:36 sati



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