Magnetic properties of a Ho.sub.2./sub.Fe.sub.14./sub.Si.sub.3./sub. single crystal

0474025 - FZÚ 2018 RIV NL eng J - Článek v odborném periodiku
Andreev, Alexander V. - Gorbunov, Denis - Skourski, Y. - Kuz'min, M.D. - Tereshina, Evgeniya - Henriques, Margarida Isabel Sousa
Magnetic properties of a Ho₂Fe₁₄Si₃ single crystal.
Journal of Alloys and Compounds. Roč. 694, Feb (2017), s. 761-766. ISSN 0925-8388. E-ISSN 1873-4669
Grant CEP: GA ČR GA16-03593S
Institucionální podpora: RVO:68378271
Klíčová slova: rare-earth intermetallics * ferrimagnetism * magnetic anisotropy * high magnetic fields * feld-induced transitions
Obor OECD: Condensed matter physics (including formerly solid state physics, supercond.)
Impakt faktor: 3.779, rok: 2017

Magnetization of a Ho2Fe14Si3 single crystal was measured in magnetic fields up to 60 T. Ho2Fe14Si3 is a ferrimagnet below TC = 480 K, has a spontaneous magnetic moment 8 mB/f (at T = 4.2 K) and exhibits a large easy-plane magnetic anisotropy, the b axis [120] being the easy-magnetization direction. In fields applied along the a and b axes field-induced first-order phase transitions are observed at 29 T and at 22 T, respectively. Along the easy axis b we observed also an S-shaped anomaly at about 47 T, which does not correspond to a phase transition. The different behavior compared to the parent compound Ho2Fe17 is due to much smaller basal-plane anisotropy constant in Ho2Fe14Si3 than in Ho2Fe17.
Trvalý link: http://hdl.handle.net/11104/0271121