Observation of the thermal conductivity due to spins in the one-dimensional antiferromagnetic ising-like spin system ACoX3 (A = Rb, Cs; X = Cl, Br)

Yoshiharu Matsuoka, Takayuki Kawamata, Koki Naruse, Masumi Ohno, Yoichi Nishiwaki, Tetsuya Kato, Takahiko Sasaki, Yoji Koike

Research output: Contribution to journalArticlepeer-review

7 Citations (Scopus)

Abstract

Thermal conductivity measurements have been carried out for single crystals of the one-dimensional (1D) antiferromagnetic (AF) Ising-like spin system ACoX3 (A = Rb, Cs; X = Cl, Br). A shoulder originating from the thermal conductivity due to spin excitations, -κ spin , has been observed around 60K in the temperature dependence of the thermal conductivity along the c-axis parallel to spin chains for every ACoX3. To our knowledge, this is the first observation of -κ spin in 1D AF Ising-like spin systems. It has been found that the magnitude of -κ spin in ACoX3 is a little smaller than those in 1D AF Heisenberg spin systems. The reason is discussed in terms of the Heisenberg-like character in ACoX3.

Original languageEnglish
Article number064603
Journaljournal of the physical society of japan
Volume83
Issue number6
DOIs
Publication statusPublished - 2014 Jun 15

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Fingerprint

Dive into the research topics of 'Observation of the thermal conductivity due to spins in the one-dimensional antiferromagnetic ising-like spin system ACoX<sub>3</sub> (A = Rb, Cs; X = Cl, Br)'. Together they form a unique fingerprint.

Cite this