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@ARTICLE{Radelytskyi:861788,
author = {Radelytskyi, Igor and Aleshkevych, P. and Gawryluk, D. J.
and Berkowski, M. and Zajarniuk, T. and Szewczyk, A. and
Gutowska, M. and Hawelek, L. and Wlodarczyk, P. and
Fink-Finowicki, J. and Minikayev, R. and Diduszko, R. and
Konopelnyk, Y. and Kozłowski, M. and Puz´niak, R. and
Szymczak, H.},
title = {{S}tructural, magnetic, and magnetocaloric properties of
{F}e$_7${S}e$_8$ single crystals},
journal = {Journal of applied physics},
volume = {124},
number = {14},
issn = {1089-7550},
address = {Melville, NY},
publisher = {American Inst. of Physics},
reportid = {FZJ-2019-02216},
pages = {143902 -},
year = {2018},
abstract = {The magnetocaloric effect has been studied in high quality
single crystals of Fe7Se8 (3c type) grown by using
Bridgman’s method. Magnetization and magnetocaloric effect
measurements have been carried out in a magnetic field up to
5 T over the temperature range from 2 to 490 K. The spin
reorientation transition from the easy c-axis to the easy
c-plane, proceeding in an abrupt fashion, as a first-order
phase transition, has been observed near the temperature
TR ≈ 125 K. The magnetization curves in the vicinity
of this transition were shown to have an S-shape with a
clear hysteresis. The first order metamagnetic field induced
transitions have been identified above and below TR. The
conventional magnetocaloric effect related to the
metamagnetic transitions has been found above TR, while
below TR the inverse magnetocaloric effect was clearly seen.
The existence of both kinds of magnetocaloric effect is
important from the point of view of large rotating field
entropy change in Fe7Se8 single crystals. The refrigeration
capacity associated with a second order phase transition
from the ferrimagnetic to the paramagnetic state at the
Néel temperature TN ≈ 450 K was found to be weaker
than that appearing near TR. The giant anisotropy of the
magnetocaloric effect was related to the magnetic anisotropy
of Fe7Se8 crystals. The one-ion model of the magnetocaloric
effect has been developed and its predictions have been
compared with experimental data.},
cin = {JCNS-FRM-II / JCNS-2},
ddc = {530},
cid = {I:(DE-Juel1)JCNS-FRM-II-20110218 /
I:(DE-Juel1)JCNS-2-20110106},
pnm = {524 - Controlling Collective States (POF3-524) / 6212 -
Quantum Condensed Matter: Magnetism, Superconductivity
(POF3-621) / 6G15 - FRM II / MLZ (POF3-6G15) / 6G4 - Jülich
Centre for Neutron Research (JCNS) (POF3-623)},
pid = {G:(DE-HGF)POF3-524 / G:(DE-HGF)POF3-6212 /
G:(DE-HGF)POF3-6G15 / G:(DE-HGF)POF3-6G4},
experiment = {EXP:(DE-MLZ)NOSPEC-20140101},
typ = {PUB:(DE-HGF)16},
UT = {WOS:000447148100004},
doi = {10.1063/1.5042344},
url = {https://juser.fz-juelich.de/record/861788},
}