Structural phase transition study of FePt alloys using ab initio calculation

Artigo

Date

2009-09-25

Registration in:

Materials Science and Engineering A-structural Materials Properties Microstructure and Processing. Lausanne: Elsevier B.V. Sa, v. 521-22, p. 167-168, 2009.

0921-5093

http://hdl.handle.net/11449/8435

10.1016/j.msea.2008.09.111

WOS:000270330700041

http://repositorioslatinoamericanos.uchile.cl/handle/2250/3885033

Author

Universidade Estadual Paulista (Unesp)

Universidade de São Paulo (USP)

Institutions

Universidade Paulista Júlio de Mesquita Filho (Brasil)

Abstract

The FePt alloy undergoes the cubic to tetragonal lattice transformation in the ferromagnetic state. We calculated the electronic structure for both cubic and tetragonal structures using the FPLAPW method with APW + lo. Comparing the density of states of the cubic and tetragonal structures, it is expected that the lattice transformation is caused by the band Jahn-Teller effect. (C) 2009 Elsevier B.V. All rights reserved.

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