Thermal conductivity of the Kondo semiconductor CeRu4Sn6

International Conference on Strongly Correlated Electron Systems 2016

Hanel, J.^1 ; Taupin, M.^1 ; Ikeda, M.^1 ; Martelli, V.^1,2 ; Tome, P.^1 ; Prokofiev, A.^1 ; Paschen, S.^1

Institute of Solid State Physics, Technische Universitat Wien, Wiedner Hauptsr. 8-10, Wien

1040, Austria^1

Centro Brasileiro de Pesquisas Fisicas, Rua Doutor Xavier Sigaud 150, CEP 22290-180, Brazil^2

关键词: Callaway;    Crystallographic directions;    High temperature;    Kondo semiconductors;    Low temperatures;    Measurements of;    Single-crystalline;    Temperature range;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/807/1/012013/pdf
DOI  :  10.1088/1742-6596/807/1/012013

来源: IOP

【 摘 要 】

We report measurements of the thermal conductivity κ on single crystalline CeRu4Sn6in the temperature range between 80 mK and 80 K, along the main crystallographic directions. κ is phonon-dominated in the whole temperature range and is found to be essentially isotropic. At low temperatures the data are well approximated by κ ∝ T2, which is attributed to a predominant scattering of phonons on electrons. We describe the data with a Callaway fit in the whole temperature range giving good agreement at low and high temperatures.