Low-temperatureheattransportofthezigzagspin-chaincompoundSrEr2O4

被引：0

作者：

褚利国 ^{[1
]}

光双魁 ^{[1
]}

周海东 ^{[2
]}

朱弘 ^{[1
]}

孙学峰 ^{[1
,3
]}

机构：

[1] Department of Physics Key Laboratory of Strongly-Coupled Quantum Matter Physics (CAS)University of Science and Technology of China

[2] Department of Physics and Astronomy University of Tennessee Knoxville

[3] Institute of Physical Science and Information Technology Anhui University

来源：

Chinese Physics B | 2022年 / 31卷 / 08期

关键词：

D O I：

暂无

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

Low-temperature thermal conductivity（κ）, as well as the magnetic properties and specific heat, are studied for the frustrated zigzag spin-chain material Sr Er2O4 by using single-crystal samples. The specific heat data indicate the longrange antiferromagnetic transition at ～0.73 K and the existence of strong magnetic fluctuations. The magnetizations at very low temperatures for magnetic field along the c axis（spin chain direction） or the a axis reveal the field-induced magnetic transitions. The κ shows a strong dependence on magnetic field, applied along the c axis or the a axis, which is closely related to the magnetic transitions. Furthermore, high magnetic field induces a strong increase of κ. These results indicate that thermal conductivity along either the c axis or the a axis are mainly contributed by phonons, while magnetic excitations play a role of scattering phonons.

引用

页码：628 / 633

页数：6