Application of the exchange-striction model for the calculation of the FeRh alloys magnetic properties
| Autor: | R.R. Gimaev, Eduard Valiev, Vladimir I. Zverev, A.M. Tishin, K. I. Kamilov, B.B. Kovalev, Alexander P. Pyatakov |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
Phase transition
Materials science Condensed matter physics Atomic force microscopy Mechanical Engineering Alloy Metals and Alloys General Chemistry engineering.material Condensed Matter::Materials Science Magnetization Ferromagnetism Mechanics of Materials Materials Chemistry engineering Curie temperature Antiferromagnetism Condensed Matter::Strongly Correlated Electrons Néel temperature |
| Zdroj: | Intermetallics. 108:81-86 |
| ISSN: | 0966-9795 |
| DOI: | 10.1016/j.intermet.2019.02.015 |
| Popis: | Application of the exchange-striction model for the calculation of the magnetic properties of antiferro (AFM) - and ferromagnetic (FM) phases of the iron-rhodium alloy is proposed. The following properties of the antiferromagnetic phase have been calculated and compared with the experimental data: the temperature dependences of the sublattice magnetization, the relative change in volume and entropy, and the pressure dependence of the Neel temperature. For the ferromagnetic phase, the temperature dependence of the magnetization, the dependence of the volume and entropy on temperature, and the dependence of the Curie temperature on pressure were calculated. A satisfactory agreement between the results of calculations and experiment has been obtained. The reasons for the AFM-FM phase transition in the iron-rhodium alloy are discussed. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full Text from ScienceDirect