1. Large reversible magnetocaloric effect in HoTiO3 single crystal.
- Author
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Su, Yantao, Sui, Yu, Cheng, Jinguang, Wang, Xianjie, Wang, Yang, Liu, Wanfa, and Liu, Xiaoyang
- Subjects
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PEROVSKITE , *CRYSTAL whiskers , *MAGNETIC fields , *ELECTROMAGNETIC induction , *FERROMAGNETISM - Abstract
Large magnetocaloric effect has been observed in perovskite-type HoTiO3 single crystal accompanied by a second-order magnetic phase transition at TC ≈ 53 K. The values of maximum magnetic entropy change are about 5.96 and 11.56 J kg-1 K-1 under the magnetic field change of 2 and 5 T, respectively, without any detectable thermal and magnetic hysteresis loss. The large magnetic entropy change is attributed to the sharp magnetization jump, related to anomalies of the lattice parameters just at the Curie temperature. Such a large reversible magnetocaloric effect makes the perovskite HoTiO3 attractive for pursuing new materials for magnetic refrigeration. [ABSTRACT FROM AUTHOR]
- Published
- 2011
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