Direct observation of half-metallicity in the Heusler compound Co2MnSi

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F49777513%3A23640%2F14%3A43922493" target="_blank" >RIV/49777513:23640/14:43922493 - isvavai.cz</a>

Result on the web

<a href="http://dx.doi.org/10.1038/ncomms4974" target="_blank" >http://dx.doi.org/10.1038/ncomms4974</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1038/ncomms4974" target="_blank" >10.1038/ncomms4974</a>

Result language

angličtina

Original language name

Direct observation of half-metallicity in the Heusler compound Co2MnSi

Original language description

Ferromagnetic thin films of Heusler compounds are highly relevant for spintronic applications owing to their predicted half-metallicity, that is, 100% spin polarization at the Fermi energy. However, experimental evidence for this property is scarce. Herewe investigate epitaxial thin films of the compound Co2MnSi in situ by ultraviolet-photoemission spectroscopy, taking advantage of a novel multi-channel spin filter. By this surface sensitive method, an exceptionally large spin polarization of at room temperature is observed directly. As a more bulk sensitive method, additional ex situ spin-integrated high energy X-ray photoemission spectroscopy experiments are performed. All experimental results are compared with advanced band structure and photoemission calculations which include surface effects. Excellent agreement is obtained with calculations, which show a highly spin polarized bulk-like surface resonance ingrained in a half metallic bulk band structure.

Czech name

—

Czech description

—

Type

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

CEP classification

BM - Solid-state physics and magnetism

OECD FORD branch

—

Project

<a href="/en/project/ED2.1.00%2F03.0088" target="_blank" >ED2.1.00/03.0088: Centre of the New Technologies and Materials</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2014

Confidentiality

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

Name of the periodical

Nature Communications

ISSN

2041-1723

e-ISSN

—

Volume of the periodical

5

Issue of the periodical within the volume

květen 2014

Country of publishing house

GB - UNITED KINGDOM

Number of pages

5

Pages from-to

1-5

UT code for WoS article

000337540400001

EID of the result in the Scopus database

—