Temperature Dependence of Heat Capacity in the Kitaev-Heisenberg Model on a Honeycomb Lattice

被引：3
|
作者：
Suzuki, Takafumi [1 ]
Yamaji, Youhei [2 ]
机构：
[1] Univ Hyogo, Grad Sch Engn, Himeji, Hyogo 6702280, Japan
[2] Univ Tokyo, Dept Appl Phys, Bunkyo Ku, Tokyo 1138656, Japan
来源：
JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN | 2019年 / 88卷 / 11期
关键词：
D O I：
10.7566/JPSJ.88.115001
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
We calculate the temperature dependence of the heat capacity per spin, C(T), for quantum and classical Kitaev-Heisenberg (qKH and cKH, respectively) models on a honeycomb lattice. In the qKH model, C(T) shows two peaks in the magnetically ordered phase near the Kitaev spin-liquid phase, while a single peak becomes prominent in the cKH model. The prominent peak corresponds to the low-temperature peak observed in the qKH model.
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页数：2
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