Control of tetrahedral coordination and superconductivity in FeSe0.5Te0.5 thin films.
Phys Rev Lett
; 104(21): 217002, 2010 May 28.
Article
em En
| MEDLINE
| ID: mdl-20867128
ABSTRACT
We demonstrate a close relationship between superconductivity and the dimensions of the Fe-Se(Te) tetrahedron in FeSe0.5Te0.5. This is done by exploiting thin film epitaxy, which provides controlled biaxial stress, both compressive and tensile, to distort the tetrahedron. The Se/Te height within the tetrahedron is found to be of crucial importance to superconductivity, in agreement with the scenario that (π, π) spin fluctuations promote superconductivity in Fe superconductors.
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01-internacional
Base de dados:
MEDLINE
Idioma:
En
Revista:
Phys Rev Lett
Ano de publicação:
2010
Tipo de documento:
Article
País de afiliação:
Estados Unidos