教師資料查詢 | 類別: 期刊論文 | 教師: 張經霖 CHANG, HENRY CHING-LIN (瀏覽個人網頁)

標題:Calorimetric evaluation of magnetic ordering and spin reorientation in Er3Ge4
學年88
學期1
出版(發表)日期2000/01/01
作品名稱Calorimetric evaluation of magnetic ordering and spin reorientation in Er3Ge4
作品名稱(其他語言)
著者Chen, Y. Y.; Yao, Y. D.; Lin, Y. S.; Chang, C. L.; Hamdeh, H. H.; Ho, J. C.
單位淡江大學物理學系
出版者College Park: American Physical Society
著錄名稱、卷期、頁數Physical Review B (Condensed Matter and Materials Physics) 61(1), pp.58-59
摘要Calorimetric measurements have been made on orthorhombic Er3Ge4 having two crystallographically distinct Er sites. The temperature dependence of specific heat shows a peak near 7 K, confirming the antiferromagnetic ordering of both Er sublattices as suggested by neutron diffraction. A spin reorientation in one of the Er sublattices of the highly canted magnetic structure prevails as a second peak in specific heat around 3.5 K. Both magnetic transitions exhibit no thermal hysteresis. By further taking into account the relatively small contributions from lattice and crystal-field effect, as well as 3R ln 2 for the ordering of all Er3+ with a ground-state doublet, entropy analysis results in a 30 J/mol energy associated with the spin reorientation process.
關鍵字
語言英文
ISSN1098-0121
期刊性質國外
收錄於SCI
產學合作
通訊作者
審稿制度
國別美國
公開徵稿
出版型式紙本
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