Anisotropy of in-plane thermal conductivity in YBa{sub 2}Cu{sub 3}O{sub 7-{delta}}
Journal Article
·
· Journal of Low Temperature Physics
- Technische Hochschule Darmstadt (Germany); and others
The thermal conductivity {kappa} of untwinned single crystals of YBa{sub 2}Cu{sub 3}O{sub 7{minus}{delta}} (T{sub C}=91 K) has been measured along the a- ({kappa}{sub a}) and b-axis ({kappa}{sub b}) for 0.1K30 K {kappa}{sub b} is found to be larger than {kappa}{sub a}, while for 0.2 K< T <30 K, {kappa}{sub a} = {kappa}{sub b} within experimental resolution. At the lowest temperatures accessible in this experiment {kappa}{sub b} asympolically approaches a linear in T dependence pointing towards an additional contribution of the thermal conductivity parallel to the direction of the Cu-O chains at T<0.3 K. Applying a magnetic field (B=6 T) leaves {kappa}{sub a} (0.2K
- Sponsoring Organization:
- USDOE
- OSTI ID:
- 457266
- Report Number(s):
- CONF-960808--
- Journal Information:
- Journal of Low Temperature Physics, Journal Name: Journal of Low Temperature Physics Journal Issue: 3-4 Vol. 105; ISSN 0022-2291; ISSN JLTPAC
- Country of Publication:
- United States
- Language:
- English
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