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    • Evidence for supercooling across a vortex-matter phase transition: studies on CeRU2 and Bi2Sr2CaCu2O8

      P Chaddah S B Roy

      High Tc Superconductors: Thin Films And Vortex Pinning Volume 22 Issue 3 May 1999 pp 275-278

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      Permanent link:
      https://www.ias.ac.in/article/fulltext/boms/022/03/0275-0278

    • Keywords

       

      Vortex-matter transition; supercooling; CeRu2; Bi2Sr2CaCu2O8

    • Abstract

       

      We present DC magnetization data indicating a first-order phase transition in the vortex state of CeRu2, with the higher entropy phase exhibiting enhanced pinning. Minor hysteresis loops show evidence of supercooling of the higher entropy phase as the phase boundary is crossed both isothermally as well as at constant field. These features are shown to be absent across the Bragg-glass to vortex-glass transition in Bi2Sr2CaCu2O8. The supercooling is more persistent in the constant field case.

    • Author Affiliations

       

      P Chaddah1 S B Roy1

      1. Low Temperature Physics Group, Centre for Advanced Technology, Indore - 452 013, India

    • Dates

       
      Published
      May 1999

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