Spin-polarized transport utilizing d(0) ferromagnetism: an ab initio study of CaC/MgS/CaC (001) heterojunctions

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F15%3A10315526" target="_blank" >RIV/00216208:11320/15:10315526 - isvavai.cz</a>

Result on the web

<a href="http://dx.doi.org/10.1088/0022-3727/48/45/455002" target="_blank" >http://dx.doi.org/10.1088/0022-3727/48/45/455002</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1088/0022-3727/48/45/455002" target="_blank" >10.1088/0022-3727/48/45/455002</a>

Result language

angličtina

Original language name

Spin-polarized transport utilizing d(0) ferromagnetism: an ab initio study of CaC/MgS/CaC (001) heterojunctions

Original language description

The electronic structure and magnetic properties of rocksalt-type CaC compound are studied by means of first-principles calculations. The B1-type calcium monocarbide is a metastable, nearly half-metallic ferromagnetic compound, with a magnetic moment of1.81 mu B/f.u. and a negative Fermi level spin-polarization of 50%. The estimated Curie temperature exceeds the room temperature. The electronic, magnetic and spin-polarized transport properties of CaC/MgS/CaC (0 0 1) heterostructures are investigated byusing a first-principles Green's function technique for layered structures in conjunction with the Kubo-Landauer formalism. The magnetism of CaC (0 0 1) electrodes is robust while the Fermi level spin-polarization of interfacial CaC layers at CaC/MgS (00 1) interfaces increases over the bulk value. The localized states formed at CaC/MgS (0 0 1) interfaces strongly enhance the minority-spin ferromagnetic state conductance. The current spin-polarization reaches values as high as 99%. Ver

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

BM - Solid-state physics and magnetism

OECD FORD branch

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Project

<a href="/en/project/GB14-37427G" target="_blank" >GB14-37427G: Center of spintronics</a><br>

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2015

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Journal of Physics D - Applied Physics

ISSN

0022-3727

e-ISSN

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Volume of the periodical

48

Issue of the periodical within the volume

45

Country of publishing house

GB - UNITED KINGDOM

Number of pages

12

Pages from-to

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UT code for WoS article

000367070000005

EID of the result in the Scopus database

2-s2.0-84947054608