Combined pressure and magnetic-field induced caloric effects in Fe7Se8 single crystals

Konopelnyk Y, Radelytskyi I, Iwanowski P, Gawryluk DJ, Berkowski M, Diduszko R, Fink-Finowicki J, Szymczak H & Puzniak R
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Konopelnyk, Y., Radelytskyi, I., Iwanowski, P., Gawryluk, D. J., Berkowski, M., Diduszko, R., … Puzniak, R. (2022). Combined pressure and magnetic-field induced caloric effects in Fe7Se8 single crystals. Journal of Magnetism and Magnetic Materials, 543, 168626 (11 pp.). https://doi.org/10.1016/j.jmmm.2021.168626
https://www.dora.lib4ri.ch/psi/islandora/object/psi:39375

The effect of hydrostatic pressure on magnetic entropy change in a magnetic field, ΔSm, in Fe7Se8 single crystals is determined. The application of hydrostatic pressure shifts the spin–reorientation transition temperature, TSRT, to lower temperatures, similar to the action of a magnetic field applied perpendicularly to the c-axis. The magnetization of Fe7Se8 in a field parallel to the c-axis monotonically decreases under increasing pressure. ΔSm and the refrigeration capacity of investigated crystals strongly depend on TSRT and thus on hydrostatic pressure. Experimental results are described in the frame of a one-ion model of magnetic anisotropy.

Details
Publication Type

Journal Article

Title

Combined pressure and magnetic-field induced caloric effects in Fe7Se8 single crystals

Author(s)

Konopelnyk, Y.

Radelytskyi, I.

Iwanowski, P.

Gawryluk, D. J. (3703 Solid State Chemistry)

Berkowski, M.

Diduszko, R.

Fink-Finowicki, J.

Szymczak, H.

Puzniak, R.

Journal

Journal of Magnetism and Magnetic Materials

Volume

543

Start Page

168626 (11 pp.)

Publication Year

2022

Peer Review

Yes

Keywords

magnetism
magnetocaloric effect
phase transition
spin reorientation

Collection

PSI Publications
Open Access

Additional Information

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