Thermal conductivity of rare-earth nickel borocarbides

Hennings, B. D.; Rathnayaka, K. D. D.; Naugle, D. G.; Canfield, Paul C.

doi:10.1016/s0921-4534(00)00676-6

Cited by 5 publications

(1 citation statement)

References 9 publications

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“…The thermal conductivity, κ, of YNi 2 B 2 C, shown in figure 4, agrees well with previous reports [5,[43][44][45]. Its in-plane values are approximately twice as large as the c-axis κ in the whole measured temperature range, in agreement with the data reported in [43], despite a larger anisotropy at the lowest measured temperatures.…”

Section: Thermal Conductivitysupporting

confidence: 91%

Heat and charge transport in YNi₂B₂C and HoNi₂B₂C single crystals

Schneider

Gladun

Kreyßig

et al. 2008

J. Phys.: Condens. Matter

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For a systematic investigation of the heat-and charge-transport properties of YNi 2 B 2 C and HoNi 2 B 2 C, single-crystal measurements of the electrical resistivity, the thermal conductivity, and the thermoelectric power were performed on the same samples. For HoNi 2 B 2 C, a local maximum of the Lorenz number at 20 K is evidently connected with the occurrence of magnetic fluctuations well above the ordering temperature. For the in-plane thermal conductivity, a kink near the superconducting transition was observed, consistent with an anisotropic gap or a multiband description. For both investigated borocarbides, the electrical resistance is isotropic. In contrast, the thermal conductivity shows a pronounced anisotropy. The thermoelectric power exhibits a minor anisotropy and can be well described by electron-diffusion and phonon-drag contributions over a wide temperature range. Based on an analysis of full-potential local-orbital calculations, a strong influence of the boron z position on the thermoelectric power has been revealed.

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