А.М. Гибин, Н. В. Абросимов, A.Д. Буланов, В. А. Гавва
{"title":"Теплопроводность монокристаллов изотопно-обогащенного германия -=SUP=-70-=/SUP=-Ge, -=SUP=-72-=/SUP=-Ge, -=SUP=-74-=/SUP=-Ge в интервале 80-310 K","authors":"А.М. Гибин, Н. В. Абросимов, A.Д. Буланов, В. А. Гавва","doi":"10.21883/ftt.2023.08.56167.65","DOIUrl":null,"url":null,"abstract":"The temperature dependence of the thermal conductivity (T) of single crystals isotopically enriched 70Ge (99.926%), 72Ge (99.980%), 74Ge (99.921%) has been measured in the temperature range 80–310K. In the studied temperature range, the thermal conductivity is determined by anharmonic processes of phonon scattering; a decrease in the thermal conductivity with increasing mass of the germanium isotope is experimentally observed.","PeriodicalId":24077,"journal":{"name":"Физика твердого тела","volume":"1 1","pages":""},"PeriodicalIF":0.0000,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Физика твердого тела","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.21883/ftt.2023.08.56167.65","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
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Abstract
The temperature dependence of the thermal conductivity (T) of single crystals isotopically enriched 70Ge (99.926%), 72Ge (99.980%), 74Ge (99.921%) has been measured in the temperature range 80–310K. In the studied temperature range, the thermal conductivity is determined by anharmonic processes of phonon scattering; a decrease in the thermal conductivity with increasing mass of the germanium isotope is experimentally observed.
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