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Electronic and Magnetic Properties of Fe2−xCoxTiSi (x = 0, 0.5, 1, 1.5, 2) Heusler Alloys.
- Source :
- Journal of Electronic Materials; Oct2019, Vol. 48 Issue 10, p6753-6761, 9p
- Publication Year :
- 2019
-
Abstract
- The first principles calculations are carried out to understand the half metallic and ferromagnetic properties of Fe<subscript>2−x</subscript>Co<subscript>x</subscript>TiSi (x = 0, 0.5, 1, 1.5, 2) full Heusler alloys. The stable structure is predicted as L2<subscript>1</subscript> structure (Cu<subscript>2</subscript>MnAl phase). The lattice constant value of Fe<subscript>2−x</subscript>Co<subscript>x</subscript>TiSi Heusler compounds increases as the value of x increases. These alloys exhibit half metallic ferromagnetism (except Fe<subscript>2</subscript>TiSi) with small spin flip gap at the minority spin state. At high pressure, semiconductor to metallic phase transition is observed in Fe<subscript>2</subscript>TiSi while half metallic to metallic phase transition is observed in Fe<subscript>1.5</subscript>Co<subscript>0.5</subscript>TiSi, Fe<subscript>1.0</subscript> Co<subscript>1.0</subscript>TiSi, Fe<subscript>0.5</subscript>Co<subscript>1.5</subscript>TiSi and Co<subscript>2</subscript>TiSi. The spin polarization of these compounds (except Fe<subscript>2</subscript>TiSi) is 100%. Hence, these compounds are suitable for spin injection devices in spintronics. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 03615235
- Volume :
- 48
- Issue :
- 10
- Database :
- Complementary Index
- Journal :
- Journal of Electronic Materials
- Publication Type :
- Academic Journal
- Accession number :
- 138456793
- Full Text :
- https://doi.org/10.1007/s11664-019-07482-2