Investigation of the thermal conductivity of the mixed pentatellurides Hf1−xZrxTe5
- 9 October 2000
- journal article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 77 (15) , 2319-2321
- https://doi.org/10.1063/1.1316065
Abstract
Transition-metal pentatellurides (HfTe5 and ZrTe5) exhibit a promising power factor (electronic properties) for possible use as a thermoelectric material. For complete characterization of these crystals, thermal conductivity measurements are necessary. In this letter, we report measurements of the thermal conductivity for this group of materials using the parallel thermal conductance technique which is well adapted for needle-like samples. Thermal conductivity is presented as a function of temperature and composition of the pentatelluride solid solution HfxZr1−xTe5 with 0⩽x⩽1 in which the magnitude of the room temperature thermal conductivity varies from 5 to 8 W/(m K). Dependence on the cross-sectional area and possible size effects (or sample quality) is also presented and discussed. These results also indicate the importance of sample quality on the low-temperature thermal conductance maximum λmax.Keywords
This publication has 12 references indexed in Scilit:
- and Possible polaronic conductorsPhysical Review B, 1999
- ZrTe5 and HfTe5: The heat capacity and derived thermophysical properties from 6 to 350 KJournal of Solid State Chemistry, 1989
- Structural modification and heat capacity of ZrTe5Synthetic Metals, 1985
- Thermoelectric power of HfTe5 and ZrTe5Solid State Communications, 1982
- Hall effect and transverse magnetoresistance in a low-dimensional conductor HfTe5Solid State Communications, 1982
- Negative Evidences for Charge/Spin Density Wave in ZrTe5Journal of the Physics Society Japan, 1982
- Possible phase transition in the quasi-one-dimensional materials Zror HfPhysical Review B, 1981
- Anomalous electrical resistivity in HfTe5Solid State Communications, 1981
- Giant Resistivity Anomaly in ZrTe5Journal of the Physics Society Japan, 1980
- The Crystal Structure of HfTe5.Acta Chemica Scandinavica, 1973