Magnetostriction of Hexagonal HoMnO3 and YMnO3 Single Crystals
| Autor: | K. Yu. Terent’ev, N. S. Pavlovskii, S. V. Semenov, A. A. Dubrovskii, S. E. Nikitin, K. A. Shaikhutdinov |
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| Rok vydání: | 2018 |
| Předmět: |
Materials science
Magnetic moment Condensed matter physics Magnetostriction 02 engineering and technology 021001 nanoscience & nanotechnology Condensed Matter Physics 01 natural sciences Electronic Optical and Magnetic Materials Ion Magnetic field Crystal Condensed Matter::Materials Science Electric field 0103 physical sciences Condensed Matter::Strongly Correlated Electrons 010306 general physics 0210 nano-technology Single crystal Phase diagram |
| Zdroj: | Physics of the Solid State. 60:520-526 |
| ISSN: | 1090-6460 1063-7834 |
| Popis: | We report on the magnetostriction of hexagonal HoMnO3 and YMnO3 single crystals in a wide range of applied magnetic fields (up to H = 14 T) at all possible combinations of the mutual orientations of magnetic field H and magnetostriction ΔL/L. The measured ΔL/L(H, T) data agree well with the magnetic phase diagram of the HoMnO3 single crystal reported previously by other authors. It is shown that the nonmonotonic behavior of magnetostriction of the HoMnO3 crystal is caused by the Ho3+ ion; the magnetic moment of the Mn3+ ion parallel to the hexagonal crystal axis. The anomalies established from the magnetostriction measurements of HoMnO3 are consistent with the phase diagram of these compounds. For the isostructural YMnO3 single crystal with a nonmagnetic rare-earth ion, the ΔL/L(H, T) dependences are described well by a conventional quadratic law in a wide temperature range (4–100 K). In addition, the magnetostriction effect is qualitatively estimated with regard to the effect of the crystal electric field on the holmium ion. |
| Databáze: | OpenAIRE |
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