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Finite temperature magnetism of FeRh compounds
- Publication Year :
- 2015
-
Abstract
- The temperature dependent stability of the magnetic phases of FeRh were investigated by means of total energy calculations with magnetic disorder treated within the uncompensated disordered local moment (uDLM) approach. In addition, Monte Carlo simulations based on the extended Heisenberg model have been performed, using exchange coupling parameters obtained rom first principles. The crucial role and interplay of two factors in the metamagnetic transition in FeRh has been revealed, namely the dependence of the Fe-Fe exchange coupling parameters on the temperature-governed degree of magnetic disorder in the system and the stabilizing nature of the induced magnetic moment on Rh-sites. An important observation is the temperature dependence of these two competing factors.
- Subjects :
- Condensed Matter - Materials Science
Materials science
Condensed matter physics
Magnetic moment
Magnetism
Heisenberg model
Monte Carlo method
Materials Science (cond-mat.mtrl-sci)
FOS: Physical sciences
02 engineering and technology
021001 nanoscience & nanotechnology
01 natural sciences
Coupling (physics)
Magnetic disorder
0103 physical sciences
Total energy
010306 general physics
0210 nano-technology
Local moment
Subjects
Details
- Language :
- English
- Database :
- OpenAIRE
- Accession number :
- edsair.doi.dedup.....efe8d7e5abad021116905af4c714d029