Granular superconductivity and phase separation in Ru1212Eu

Y. Y. Xue, B. Lorenz, A. Baikalov, J. Cmaidaka, F. Chen, R. L. Meng, C. W. Chu

研究成果: Conference article同行評審

5 引文 斯高帕斯(Scopus)


The magnetic and superconducting properties of RuSr2EuCu 2O10+δ (Ru1212Eu) are investigated. Analysis of the magnetization and specific heat suggest that the ferromagnetic and antiferromagnetic transitions in this component are separated by Cu-doping, and that both carry comparable spin entropies. This is more in line with mesoscopic phase-separation than cant antiferromagnetism. The equilibrium magnetization was further deduced as the function of both the external field H2 and the demagnetizing field Hdm. The data show that the FM component is along the a, b direction with a maximum Hdm far larger than the apparent lower-critical-field observed. Part of the samples, therefore, should be in the spontaneous vortex state if the magnetic domains are pre-aligned above Tc.

頁(從 - 到)638-640
期刊Physica C: Superconductivity and its applications
出版狀態Published - 2004 8月
事件Proceedings of the International Conference on Materials - Rio de Janeiro, Brazil
持續時間: 2003 5月 252003 5月 30

All Science Journal Classification (ASJC) codes

  • 電子、光磁材料
  • 凝聚態物理學
  • 能源工程與電力技術
  • 電氣與電子工程


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