Observation of the Thermal Conductivity due to Spins in the One-Dimensional Antiferromagnetic Ising-Like Spin System ACoX3 (A = Rb, Cs; X = Cl, Br)

被引：7

作者：

Matsuoka, Yoshiharu ^{[1
]}

Kawamata, Takayuki ^{[1
]}

Naruse, Koki ^{[1
]}

Ohno, Masumi ^{[1
]}

Nishiwaki, Yoichi ^{[2
]}

Kato, Tetsuya ^{[3
]}

Sasaki, Takahiko ^{[4
]}

Koike, Yoji ^{[1
]}

机构：

[1] Tohoku Univ, Dept Appl Phys, Sendai, Miyagi 9808579, Japan

[2] Saitama Med Univ, Dept Phys, Moroyama, Saitama 3500495, Japan

[3] Chiba Univ, Fac Educ, Chiba 2638522, Japan

[4] Tohoku Univ, Inst Mat Res, Sendai, Miyagi 9808577, Japan

来源：

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN | 2014年 / 83卷 / 06期

关键词：

DYNAMICAL CORRELATION-FUNCTIONS; RAMAN-SCATTERING; ANTI-FERROMAGNETS; ENERGY-TRANSPORT; CSCOCL3; CSCOBR3; HEAT; GAP; INPLANE; CHAINS;

D O I：

10.7566/JPSJ.83.064603

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Thermal conductivity measurements have been carried out for single crystals of the one-dimensional (1D) antiferromagnetic (AF) Ising-like spin system ACoX(3) (A = Rb, Cs; X = Cl, Br). A shoulder originating from the thermal conductivity due to spin excitations, kappa(spin), has been observed around 60K in the temperature dependence of the thermal conductivity along the c-axis parallel to spin chains for every ACoX(3). To our knowledge, this is the first observation of kappa(spin) in 1D AF Ising-like spin systems. It has been found that the magnitude of kappa(spin) in ACoX(3) is a little smaller than those in 1D AF Heisenberg spin systems. The reason is discussed in terms of the Heisenberg-like character in ACoX(3).

引用

页数：4