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E. Z. Valiev, V. I. Bobrovskii

ON THE SEARCH OF NEW MAGNETIC MATERIALS FOR CRYOGENICS

DOI: 10.17804/2410-9908.2019.4.006-015

Due to the latest achievements and potential practical applicability, magnetic refrigeration is currently of great interest. For the search of new effective materials for refrigerators with magnetic cooling, we obtain and analyze the governing equations enabling one to calculate the basic characteristics of the magnetocaloric effect (MCE) in magnetically ordered materials (temperature and entropy changes under on/off switching of the magnetic field). Recommendations and demands for the characteristics of promising ferro- and ferrimagnets in search are proposed on the basis of a joint analysis of these formula and experimental results.

Acknowledgments: The work was performed with the use of IMP Neutron Material Science Complex within the state assignment for IPM UB RAS (theme Flux) and supported by the Basic Research Program of UB RAS, grant No. 18-10-2-22.

Keywords: magnetic refrigeration, ferromagnets, antiferromagnets, ferrimagnets, magnetic phase transitions, magnetocaloric effect

References:

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8. Valiev E., Gimaev R., Zverev V., Kamilov K., Pyatakov A., Kovalev B., Tishin A. Application of the exchange-striction model for the calculation of the FeRh alloys magnetic properties. Intermetallics, 2019, vol. 108, pp. 81–86. DOI: 10.1016/j.intermet.2019.02.015.

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Article reference

Valiev E. Z., Bobrovskii V. I. On the Search of New Magnetic Materials for Cryogenics // Diagnostics, Resource and Mechanics of materials and structures. - 2019. - Iss. 4. - P. 6-15. -
DOI: 10.17804/2410-9908.2019.4.006-015. -
URL: http://eng.dream-journal.org/issues/2019-4/2019-4_261.html
(accessed: 04/14/2024).

 

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