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Strain effect on the NĂ©el temperature of SrTcO3 from first-principles calculations.
- Source :
-
Solid State Communications . Oct2015, Vol. 219, p25-27. 3p. - Publication Year :
- 2015
-
Abstract
- Generalized gradient approximation with on-site Coulomb corrections (GGA+ U ) method is used to investigate the effect of biaxial strain on the Néel temperature of SrTcO 3 . A series of hypothetical strains on SrTcO 3 are considered to simulate its being applied in SrTcO 3 -based devices. It is found that a tensile strain will decrease T N , while a compressive strain less than 6.6% will increase T N . At a compressive strain between 5.5% and 6.7%, a highest T N which is about 26.6% higher than that of the bulk material can be obtained. The higher T N can be experimentally achieved by growing SrTcO 3 on the common substrate STO/LSAT/NGO/LAO. Our work provides a theoretical basis for the application of high- T N SrTcO 3 in small devices. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 00381098
- Volume :
- 219
- Database :
- Academic Search Index
- Journal :
- Solid State Communications
- Publication Type :
- Academic Journal
- Accession number :
- 108613156
- Full Text :
- https://doi.org/10.1016/j.ssc.2015.06.015