This title appears in the Scientific Report :
2007
Please use the identifier:
http://dx.doi.org/10.1002/pssr.200701130 in citations.
Vacancy-induced minority-spin states in half-metallic Heusler alloys
Vacancy-induced minority-spin states in half-metallic Heusler alloys
Ferromagnetic full Heusler alloys containing Co are amongst the most studied half-metallic systems. Several studies recently have been concentrated on the effect of defects and impurities. We focus in this Letter on the case of vacancies in these alloys. We show that the occurrence of vacancies at t...
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Personal Name(s): | Özdogan, K. |
---|---|
Sasioglu, E. / Galanakis, I. | |
Contributing Institute: |
Quanten-Theorie der Materialien; IFF-1 Center of Nanoelectronic Systems for Information Technology; CNI |
Published in: | Physica status solidi / Rapid research letters, 1 (2007) S. 184 - 186 |
Imprint: |
Weinheim
Wiley-VCH
2007
|
Physical Description: |
184 - 186 |
DOI: |
10.1002/pssr.200701130 |
Document Type: |
Journal Article |
Research Program: |
Grundlagen für zukünftige Informationstechnologien |
Series Title: |
Physica Status Solidi - Rapid Research Letters
1 |
Subject (ZB): | |
Publikationsportal JuSER |
Ferromagnetic full Heusler alloys containing Co are amongst the most studied half-metallic systems. Several studies recently have been concentrated on the effect of defects and impurities. We focus in this Letter on the case of vacancies in these alloys. We show that the occurrence of vacancies at the sites occupied by Co atoms can destroy half-metallicity andalters the Slater-Pauling rule. Such defects are likely to occur since they result to the Cl-b lattice structure of the semi-Heusler alloys. Contrary, the appearance of vacancies at the other sites keeps the half-metallic character of the parent alloys. Thus for realistic devices it is important to prevent the appearance of vacancies during the growth of thin films. (c) 2007 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim. |