{"title":"Low-temperature transport properties of Zn/sub 4/Sb/sub 3/ bulk crystal grown by gradient freeze method","authors":"T. Souma, G. Nakamoto, M. Kurisu","doi":"10.1109/ICT.2001.979886","DOIUrl":null,"url":null,"abstract":"The low temperature thermoelectric properties have been investigated on Zn/sub 4/Sb/sub 3/ compound between 4 K and 300 K. A single phase Zn/sub 4/Sb/sub 3/ bulk crystal with the density of 95.4% of the theoretical has been grown by a gradient freeze method. The resistivity exhibits a metallic conduction with an anomaly associated with a structural transformation from /spl alpha/ to /spl beta/ phase at T/sub S//sup GF/=257.4 K. The thermopower is positive and larger in /spl alpha/ than in /spl beta/ phase. The elongation of Zn/sub 4/Sb/sub 3/ is small (1/spl times/10/sup -4/) at T/sub S//sup GF/. The magnetic measurement shows that Zn/sub 4/Sb/sub 3/ exhibits diamagnetism and /spl chi/(T) curve has an appreciable increase at T/sub S//sup GF/. The power factor of a phase is two times as large as that of /spl beta/ phase at low-temperature region (below 300 K).","PeriodicalId":203601,"journal":{"name":"Proceedings ICT2001. 20 International Conference on Thermoelectrics (Cat. No.01TH8589)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2001-06-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"5","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Proceedings ICT2001. 20 International Conference on Thermoelectrics (Cat. No.01TH8589)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/ICT.2001.979886","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 5
Abstract
The low temperature thermoelectric properties have been investigated on Zn/sub 4/Sb/sub 3/ compound between 4 K and 300 K. A single phase Zn/sub 4/Sb/sub 3/ bulk crystal with the density of 95.4% of the theoretical has been grown by a gradient freeze method. The resistivity exhibits a metallic conduction with an anomaly associated with a structural transformation from /spl alpha/ to /spl beta/ phase at T/sub S//sup GF/=257.4 K. The thermopower is positive and larger in /spl alpha/ than in /spl beta/ phase. The elongation of Zn/sub 4/Sb/sub 3/ is small (1/spl times/10/sup -4/) at T/sub S//sup GF/. The magnetic measurement shows that Zn/sub 4/Sb/sub 3/ exhibits diamagnetism and /spl chi/(T) curve has an appreciable increase at T/sub S//sup GF/. The power factor of a phase is two times as large as that of /spl beta/ phase at low-temperature region (below 300 K).
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