Magnetic anisotropy of multiferroic HoMn2O5 single crystal

作者：Tzankov D; Skumryev V; Aroyo M; Puzniak R; Kuz'min M D; Mikhov M^*

来源：Solid State Communications, 2008, 147(5-6): 212-216.

DOI：10.1016/j.ssc.2008.05.015

• manganites
• magnetic anisotropy

Magnetic properties such as magnetic susceptibility, magnetisation, and torque of HoMn2O5 multiferroic single crystal have been studied in a broad range of temperatures and magnetic fields. The crystal exhibits strong magnetic anisotropy in both paramagnetic and magnetically ordered states. The easy, middle, and hard magnetisation directions are along the b-, a-, and c-crystallographic axes, respectively, with the negative paramagnetic Curie temperatures of -10 K, -20 K, and -90 K, correspondingly. The Curie constant of 17.9 emu/mol is independent of the crystallographic directions. The second-order crystal field parameters for the Ho site are determined to be B-20 = (0.88 +/- 10.02) K, and B-22 = (0.16 +/- 0.02) K.

• 出版日期2008-8