Details

Autor(en) / Beteiligte

• Gorbunov, D I
• Strohm, C
• Henriques, M S
• van der Linden, P
• Pedersen, B
• Mushnikov, N V
• Rosenfeld, E V
• Petříček, V
• Mathon, O
• Wosnitza, J
• Andreev, A V

Titel

Microscopic Nature of the First-Order Field-Induced Phase Transition in the Strongly Anisotropic Ferrimagnet HoFe_{5}Al_{7}

Ist Teil von

• Physical review letters, 2019-03, Vol.122 (12), p.127205-127205

Ort / Verlag

United States

Erscheinungsjahr

2019

Link zum Volltext

Quelle

American Physical Society [PROLA]

Beschreibungen/Notizen

• We report on x-ray magnetic circular dichroism experiments in pulsed fields up to 30 T to follow the rotations of individual magnetic moments through the field-induced phase transition in the ferrimagnet HoFe_{5}Al_{7}. Near the ground state, we observe simultaneous stepwise rotations of the Ho and Fe moments and explain them using a two-sublattice model for an anisotropic ferrimagnet with weak intersublattice exchange interactions. Near the compensation point, we find two phase transitions. The additional magnetization jump reflects the fact that the Ho moment is no longer rigid as the applied field acts against the intersublattice exchange field.