Issues

 / 

1991

 / 

August

  

Reviews of topical problems


Phenomenological theory of magnetoelastic interactions in Invars and Elinvars

Ferromagnetic Invar and Elinvar alloys are considered as ferromagnets with strong magnetoelastic interactions. A systematic treatment of the phenomenological theory of magnetoelastic interactions in Invars and Elinvars is given. The thermodynamic quantities (thermal expansion, elastic constants, magnetic properties) and dynamical properties (propagation of acoustic waves and spin waves) are calculated theoretically. The combined effect of magnetization fluctuations and volume deformations is considered, as well as the effect of fluctuations on the thermodynamic properties. The theoretical results are compared to experiment and it is shown that the phenomenological theory gives a satisfactory quantitative explanation of the anomalies in the properties of Invars and Elinvars. The cause of the strong magnetoelastic interaction in Invars is discussed.

Fulltext pdf (1.2 MB)
Fulltext is also available at DOI: 10.1070/PU1991v034n08ABEH002463
PACS: 75.80.+q, 75.50.Bb, 75.40.Gb, 65.40.De, 75.10.−b (all)
DOI: 10.1070/PU1991v034n08ABEH002463
URL: https://ufn.ru/en/articles/1991/8/c/
Citation: Valiev E Z "Phenomenological theory of magnetoelastic interactions in Invars and Elinvars" Sov. Phys. Usp. 34 (8) 685–704 (1991)
BibTexBibNote ® (generic)BibNote ® (RIS)Medline RefWorks
RT Journal
T1 Phenomenological theory of magnetoelastic interactions in Invars and Elinvars
A1 Valiev,E.Z.
PB Physics-Uspekhi
PY 1991
FD 10 Aug, 1991
JF Physics-Uspekhi
JO Phys. Usp.
VO 34
IS 8
SP 685-704
DO 10.1070/PU1991v034n08ABEH002463
LK https://ufn.ru/en/articles/1991/8/c/

Оригинал: Валиев Э З «Феноменологическая теория магнитоупругого взаимодействия в инварах и элинварах» УФН 161 (8) 87–128 (1991); DOI: 10.3367/UFNr.0161.199108c.0087

© 1918–2024 Uspekhi Fizicheskikh Nauk
Email: ufn@ufn.ru Editorial office contacts About the journal Terms and conditions