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Synthesis and thermal conductivities of ZnIn2Te4 and CdIn2Te4 with defect-chalcopyrite structure |
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| Authors: | Tawat SuriwongKen Kurosaki Somchai ThongtemAdul Harnwunggmoung Theerayuth PlirdpringTohru Sugahara Yuji OhishiHiroaki Muta Shinsuke Yamanaka |
| Affiliation: | a Department of Physics and Materials Science, Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand b Graduate School of Engineering, Osaka University, Suita 565-0871, Japan c Research Institute of Nuclear Engineering, University of Fukui, Fukui 910-8507, Japan |
| Abstract: | ZnIn2Te4 and CdIn2Te4 have a defect-chalcopyrite tetragonal crystal structure with structural vacancies. In order to investigate the effects of vacancies on the lattice thermal conductivity (κlat), single phase samples of ZnIn2Te4 and CdIn2Te4 were synthesized and their κlat values were examined in the temperature range from room temperature to 850 K. The κlat data for ZnIn2Te4 and CdIn2Te4 were compared with those of Zn- and Cd-series chalcopyrite compounds with no vacancies. The results revealed that the presence of vacancies alone in the defect-chalcopyrite structure does not result in effective phonon scattering. |
| Keywords: | ZnIn2Te4 CdIn2Te4 Chalcopyrite structure Vacancy Thermal conductivity |
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