Low-temperature thermal conductivity of antiferromagnetic S = 1/2 chain material CuCl{sub 2}·2((CH{sub 3}){sub 2}SO)

Journal Article · Wed May 07 00:00:00 EDT 2014 · Journal of Applied Physics

DOI:https://doi.org/10.1063/1.4859975· OSTI ID:22273935

Ke, W. P.; Zhang, F. B.; Zhao, Z. Y.; Fan, C.; Shi, J. ^[1]

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1. Department of Physics, University of Science and Technology of China, Hefei, Anhui 230026 (China)

We study the heat transport of S = 1/2 chain compound CuCl{sub 2}·2((CH{sub 3}){sub 2}SO) along the b axis (vertical to the chain direction) at very low temperatures. The zero-field thermal conductivity (κ) shows a distinct kink at about 0.9 K, which is related to the long-range antiferromagnetic (AF) transition. With applying magnetic field along the c axis, κ(H) curves also show distinct changes at the phase boundaries between the AF and the high-field disordered states. These results indicate a strong spin-phonon interaction and the magnetic excitations play a role in the b-axis heat transport as phonon scatterers.

• OSTI ID: 22273935
• Journal Information: Journal of Applied Physics, Vol. 115, Issue 17; Conference: 55. annual conference on magnetism and magnetic materials, Atlanta, GA (United States), 14-18 Nov 2010; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0021-8979
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ANTIFERROMAGNETIC MATERIALS
ANTIFERROMAGNETISM
DMSO
ELECTRON-PHONON COUPLING
EXCITATION
HEAT TRANSFER
MAGNETIC FIELDS
PHONONS
SPIN
TEMPERATURE DEPENDENCE
THERMAL CONDUCTIVITY