Evidence for ballistic thermal conduction in the one-dimensional spin system Sr2CuO3

N. Takahashi, T. Kawamata, T. Adachi, T. Noji, Y. Koike, K. Kudo, N. Kobayashi

Research output: Chapter in Book/Report/Conference proceedingConference contribution

5 Citations (Scopus)

Abstract

We have measured the thermal conductivity along the b axis, κb parallel to the one-dimensional (1D) spin chain of Sr 2Cu1-xPdxO3 single crystals including nonmagnetic impurities of Pd2+, in order to investigate possible ballistic thermal conduction. It has been found that the mean free path of spinons estimated from the thermal conductivity due to spinons, which is obtained by subtracting the thermal conductivity due to phonons from κb using the Debye model, is comparable with the average length of finite spin chains between spin defects estimated from the magnetic susceptibility measurements. This proves that the thermal conduction due to spinons at low temperatures in the 1D spin system Sr2CuO3 is ballistic.

Original languageEnglish
Title of host publicationLOW TEMPERATURE PHYSICS
Subtitle of host publication24th International Conference on Low Temperature Physics - LT24
Pages1265-1266
Number of pages2
DOIs
Publication statusPublished - Dec 1 2006
Externally publishedYes
EventLOW TEMPERATURE PHYSICS: 24th International Conference on Low Temperature Physics - LT24 - Orlando, FL, United States
Duration: Aug 10 2006Oct 17 2006

Publication series

NameAIP Conference Proceedings
Volume850
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Other

OtherLOW TEMPERATURE PHYSICS: 24th International Conference on Low Temperature Physics - LT24
CountryUnited States
CityOrlando, FL
Period8/10/0610/17/06

Keywords

  • Impurity effects
  • Low-dimensional quantum spin system
  • Thermal conductivity

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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    Takahashi, N., Kawamata, T., Adachi, T., Noji, T., Koike, Y., Kudo, K., & Kobayashi, N. (2006). Evidence for ballistic thermal conduction in the one-dimensional spin system Sr2CuO3. In LOW TEMPERATURE PHYSICS: 24th International Conference on Low Temperature Physics - LT24 (pp. 1265-1266). (AIP Conference Proceedings; Vol. 850). https://doi.org/10.1063/1.2355166