Magnetic and acoustic properties of CoCr2S4

Автор(и)

  • V. Felea Institute for Applied Physics, Academy of Science of Moldova, Chisinau MD-2028, Republic of Moldova
  • P.T. Cong Hochfeld-Magnetlabor Dresden (HLD-EMFL), Helmholtz-Zentrum Dresden-Rossendorf, Dresden D-01314, Germany
  • L. Prodan Institute for Applied Physics, Academy of Science of Moldova, Chisinau MD-2028, Republic of Moldova
  • Y. Gritsenko Hochfeld-Magnetlabor Dresden (HLD-EMFL), Helmholtz-Zentrum Dresden-Rossendorf, Dresden D-01314, Germany
  • J. Wosnitza Hochfeld-Magnetlabor Dresden (HLD-EMFL), Helmholtz-Zentrum Dresden-Rossendorf, Dresden D-01314, Germany
  • S. Zherlitsyn Hochfeld-Magnetlabor Dresden (HLD-EMFL), Helmholtz-Zentrum Dresden-Rossendorf, Dresden D-01314, Germany
  • V. Tsurkan Institute for Applied Physics, Academy of Science of Moldova, Chisinau MD-2028, Republic of Moldova

DOI:

https://doi.org/10.1063/1.5010313

Ключові слова:

sulfide spinel CoCr2S4, magnetic and acoustic properties, electric polarization.

Анотація

We report results of magnetic and ultrasound studies of the sulfide spinel CoCr2S4, for which the multiferroicity has recently been suggested. Clear anomalies in the magnetic and acoustic properties have been observed at TN = 222 K and in applied magnetic fields evidencing the important role of magnetoelastic interactions in this material. In contrast, no anomalies have been detected at TC = 28 K, where a spontaneous electric polarization and isostructural distortions have been reported. We have extracted the H–T phase diagram of CoCr2S4 from our experiments for magnetic fields applied along the <111> direction. We discuss our observations in relation to our earlier results obtained for the oxide multiferroic spinel CoCr2S4.

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Опубліковано

2017-09-20

Як цитувати

(1)
Felea, V.; Cong, P.; Prodan, L.; Gritsenko, Y.; Wosnitza, J.; Zherlitsyn, S.; Tsurkan, V. Magnetic and Acoustic Properties of CoCr2S4. Fiz. Nizk. Temp. 2017, 43, 1618-1621.

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