Magnetization, specific heat, and thermal conductivity of hexagonal ErMnO3 single crystals
Magnetization, specific heat, and thermal conductivity of hexagonal ErMnO3 single crystals
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六方 ErMnO3 单晶的磁化强度、比热和导热系数
DOI：
10.1103/physrevb.96.174425
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发表时间：
2017
期刊：
影响因子：
--
通讯作者：
Sun X. F.
中科院分区：
文献类型：
--
作者：
Song J. D.;Fan C.;Zhao Z. Y.;Zhang F. B.;Zhao J. Y.;Liu X. G.;Zhao X.;Liu Y. J.;Wang J. F.;Sun X. F.
本文报道了用磁化强度、比热和热输运测量方法研究六方单晶的磁性和磁转变。磁化强度数据表明，轴向磁场在0.8、12和28 T处引起三个磁转变。比热在2.2K处出现一个峰值，这是由于磁矩的磁跃迁.对于低热导率的样品，在1- 1.25T的等温线上出现了明显的倾角特征，而对于低热导率的样品，在0.5- 0.8T的等温线上观察到了阶梯状的增加。的过渡场与磁化强度的结果吻合得很好，并且的反常可以用自旋-声子散射来理解。讨论了低温下的磁结构和相应的场致相变的性质。
We report a study of magnetism and magnetic transitions of hexagonalsingle crystals by magnetization, specific heat, and heat transport measurements. Magnetization data show that the-axis magnetic field induces three magnetic transitions at 0.8, 12, and 28 T. The specific heat shows a peak at 2.2 K, which is due to a magnetic transition ofmoments. For low-thermal conductivity, a clear diplike feature appears in theisotherm at 1–1.25 T for, while in the case of, a steplike increase is observed at 0.5–0.8 T. The transition fields inare in good agreement with those obtained from magnetization, and the anomaly ofcan be understood by a spin-phonon scattering scenario. The natures of magnetic structures and corresponding field-induced transitions at low temperatures are discussed.