Temperature Studies of the LaMn2Si2 Intermetallide by the Raman Spectroscopy and Magnetic Force Microscopy Methods

Raman spectra of the LaMn 2 Si 2 compound were obtained for the first time by Raman spectroscopy. The change in the Raman spectral characteristics in the temperature range of 263–553 K was investigated. The high sensitivity of the Raman spectroscopy method to a change in the magnetic state caused by...

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Published inPhysics of metals and metallography Vol. 125; no. 3; pp. 261 - 266
Main Authors Korkh, Yu. V., Ponomareva, E. A., Druzhinin, A. V., Gerasimov, E. G., Mushnikov, N. V., Kuznetsova, T. V.
Format Journal Article
LanguageEnglish
Published Moscow Pleiades Publishing 01.03.2024
Springer Nature B.V
Subjects
Chemistry and Materials Science
Electrical and Magnetic Properties
Magnetic domains
Magnetic force microscopy
Manganese
Materials Science
Metallic Materials
Raman spectra
Raman spectroscopy
Room temperature
Vibration mode
layered rare-earth intermetallides
magnetic force microscopy
magnetic domain structure
Raman spectroscopy
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Summary:Raman spectra of the LaMn 2 Si 2 compound were obtained for the first time by Raman spectroscopy. The change in the Raman spectral characteristics in the temperature range of 263–553 K was investigated. The high sensitivity of the Raman spectroscopy method to a change in the magnetic state caused by a temperature influence has been determined. A change in the spectral characteristics of the vibration mode of manganese atoms near the Curie and Neel temperatures has been revealed. The magnetic force microscopy technique was used to investigate the surface features of the LaMn 2 Si 2 compound at room temperature. A change in the type of magnetic domain structure in LaMn 2 Si 2 after cooling from 298 to 263 K has been found.
ISSN:0031-918X
1555-6190
DOI:10.1134/S0031918X23603086