首页 | 本学科首页   官方微博 | 高级检索  
     


Magnetic phase diagram and crystal fields of superconducting ErNi2B2C
Authors:S. Süllow  B. Ludoph  C. E. Snel  F. E. Kayzel  E. Brück  G. J. Nieuwenhuys  A. A. Menovsky  J. A. Mydosh
Affiliation:(1) Kamerlingh Onnes Laboratory, Leiden University, 2300 RA Leiden, The Netherlands;(2) Van der Waals-Zeeman Laboratory, University of Amsterdam, 1018 XE Amsterdam, The Netherlands
Abstract:We have measured the specific heatcp in magnetic fields and the resistance of the antiferromagnetically ordered borocarbide superconductor ErNi2B2C. From our data we show that the superconductivity at 10.6 K coexists with antiferromagnetic order beginning at 5.8 K, and we determine the magneticB-T phase diagram. The specific heat in zero field gives additional information about the crystalline electric field (CEF) splitting. We show that the low-temperature specific heat is dominated by several low-lying CEF doublets with the first excited level at about 10 K, while the splitting of the next two levels is about 50 to 100 K.
Keywords:74.70.Hk  75.40.Cx
本文献已被 SpringerLink 等数据库收录!
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号