教師資料查詢 | 類別: 期刊論文 | 教師: 杜昭宏 Chao-hung Du (瀏覽個人網頁)

標題:Comparative study of thermodynamic properties near the structural phase transitions in Sr3 Rh4 Sn13 and Sr3 Ir4 Sn13
學年104
學期2
出版(發表)日期2016/06/15
作品名稱Comparative study of thermodynamic properties near the structural phase transitions in Sr3 Rh4 Sn13 and Sr3 Ir4 Sn13
作品名稱(其他語言)
著者C. S. Lue; C. N. Kuo; C. W. Tseng; K. K. Wu; Y.-H. Liang; C.-H. Du; and Y. K. Kuo
單位
出版者
著錄名稱、卷期、頁數Physical Review B 93(24), p.245119 (6 pages)
摘要Structural phase transitions in Sr3Rh4Sn13 and Sr3Ir4Sn13 are currently of interest due to the evidence of strong correlation with their superconductivity. To further obtain additional insight into the thermodynamic properties of the phase transitions, we have performed a study of single-crystalline Sr3Rh4Sn13 and Sr3Ir4Sn13 by means of the specific-heat and thermal-expansion measurements, mainly focusing on the features around the phase-transition temperature T∗≃138 and 147 K, respectively. In particular, the specific-heat data have been analyzed in the framework of the critical fluctuation model in addition to a mean-field contribution. Relatively large critical exponents were obtained for Sr3Ir4Sn13, suggesting a shorter coherence length associated with the phase transition. For each compound, an enhancement in the mean-field jump compared to the BCS value has been quantitatively identified, revealing the strong-coupling characteristics for the observed phase transitions. Furthermore, prominent changes in the coefficient of linear thermal expansion and bulk modulus across T∗ have been identified, providing new information about the structural phase transitions in the title compounds.
關鍵字
語言英文(美國)
ISSN2469-9950
期刊性質國外
收錄於SCI;
產學合作
通訊作者C. S. Lue
審稿制度
國別美國
公開徵稿
出版型式,紙本
相關連結
Google+ 推薦功能,讓全世界都能看到您的推薦!