{"title":"磁铁在磁场中的低温比热","authors":"B.C. Passenheim , D.C. McCollum Jr. , J. Callaway","doi":"10.1016/0031-9163(66)90197-1","DOIUrl":null,"url":null,"abstract":"<div><p>The heat capacity of ferromagnetic EuS has been measured in a magnetic field at liquid helium temperatures. The experimental results compare favorably with spin wave calculations and indicate first and second neighbor exchange interactions of <em>J</em><sub>1</sub>/<em>k</em><sub><em>B</em></sub> = 0.20<sup>°</sup><em>K</em> and of <em>J</em><sub>2</sub>/<em>k</em><sub><em>B</em></sub> = -0.06<sup>°</sup><em>K</em> respectively.</p></div>","PeriodicalId":101027,"journal":{"name":"Physics Letters","volume":"23 11","pages":"Pages 634-636"},"PeriodicalIF":0.0000,"publicationDate":"1966-12-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0031-9163(66)90197-1","citationCount":"18","resultStr":"{\"title\":\"The low temperature specific heat of EuS in a magnet field\",\"authors\":\"B.C. Passenheim , D.C. McCollum Jr. , J. Callaway\",\"doi\":\"10.1016/0031-9163(66)90197-1\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>The heat capacity of ferromagnetic EuS has been measured in a magnetic field at liquid helium temperatures. The experimental results compare favorably with spin wave calculations and indicate first and second neighbor exchange interactions of <em>J</em><sub>1</sub>/<em>k</em><sub><em>B</em></sub> = 0.20<sup>°</sup><em>K</em> and of <em>J</em><sub>2</sub>/<em>k</em><sub><em>B</em></sub> = -0.06<sup>°</sup><em>K</em> respectively.</p></div>\",\"PeriodicalId\":101027,\"journal\":{\"name\":\"Physics Letters\",\"volume\":\"23 11\",\"pages\":\"Pages 634-636\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"1966-12-12\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://sci-hub-pdf.com/10.1016/0031-9163(66)90197-1\",\"citationCount\":\"18\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Physics Letters\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/0031916366901971\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Physics Letters","FirstCategoryId":"1085","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/0031916366901971","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
The low temperature specific heat of EuS in a magnet field
The heat capacity of ferromagnetic EuS has been measured in a magnetic field at liquid helium temperatures. The experimental results compare favorably with spin wave calculations and indicate first and second neighbor exchange interactions of J1/kB = 0.20°K and of J2/kB = -0.06°K respectively.
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