High-field magnetization of a DyFe.sub.5./sub.Al.sub.7./sub. single crystal

0392645 - FZÚ 2014 RIV NL eng J - Článek v odborném periodiku
Gorbunov, Denis - Andreev, Alexander V. - Skourski, Y. - Kuz'min, M.D.
High-field magnetization of a DyFe₅Al₇ single crystal.
Journal of Alloys and Compounds. Roč. 553, MAR (2013), s. 358-363. ISSN 0925-8388. E-ISSN 1873-4669
Grant CEP: GA ČR GAP204/12/0150
Grant ostatní: AVČR(CZ) M100101203
Institucionální podpora: RVO:68378271
Klíčová slova: rare-earth intermetallics * magnetic anisotropy * ferrimagnetism * high magnetic fields * field-induced transition
Kód oboru RIV: BM - Fyzika pevných látek a magnetismus
Impakt faktor: 2.726, rok: 2013

The magnetization of a DyFe5Al7 single crystal with the tetragonal ThMn12-type structure was measured in pulsed fields up to 60 T along the principal axes. The compound orders ferrimagnetically at TC = 231 K and exhibits a compensation of the Dy and Fe sublattices at Tcomp = 93 K. DyFe5Al7 displays a high magnetic anisotropy of the easy-plane type, the [100] axis is the easy magnetization direction with the spontaneous magnetic moment Ms = 2.1 μB/f at T = 2 K. In a field applied along the easy axis, two field-induced hysteretic transitions are observed at 30 and 53 T at T = 2 K. The magnetization curve along the easy [100] axis was analyzed within a model for a ferrimagnet with an anisotropic dominant sublattice. The model correctly reproduces the behavior of magnetization in a magnetic field.
Trvalý link: http://hdl.handle.net/11104/0221455