Magnetic and acoustic properties of CoCr2S4
| Autor: | V. Felea, Y. Gritsenko, Vladimir Tsurkan, P. T. Cong, Jochen Wosnitza, Sergei Zherlitsyn, L. Prodan |
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| Rok vydání: | 2017 |
| Předmět: |
Materials science
Physics and Astronomy (miscellaneous) Condensed matter physics Spinel Oxide General Physics and Astronomy 02 engineering and technology engineering.material 021001 nanoscience & nanotechnology 01 natural sciences Magnetic field Polarization density chemistry.chemical_compound chemistry 0103 physical sciences engineering Cobalt compounds Multiferroics Isostructural 010306 general physics 0210 nano-technology Phase diagram |
| Zdroj: | Low Temperature Physics 43(2017), 1618-1621 |
| ISSN: | 1090-6517 1063-777X |
| Popis: | 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 interac-tions 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 direction. We discuss our observa-tions in relation to our earlier results obtained for the oxide multiferroic spinel CoCr2O4. |
| Databáze: | OpenAIRE |
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