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26 April 2024
 
  » arxiv » cond-mat/0108299

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Temperature variations of the disorder-induced vortex-lattice melting landscape
A. Soibel ; Y. Myasoedov ; M. L. Rappaport ; T. Tamegai ; S. S. Banerjee ; E. Zeldov ( Dept. of Condensed Matter Physics ; The Weizmann Institute of Science ; Rehovot ; Israel ; Dept. of Applied Physics ; The University of Tokyo ; Hungo ; Bunkyo-ku ; Tokyo ; CREST ; Japan Science ; Technology Corporation ;
Date 20 Aug 2001
Journal Phys. Rev. Lett. 87, 167001 (2001)
Subject Superconductivity | cond-mat.supr-con
Affiliation2,3), S. S. Banerjee and E. Zeldov ( Dept. of Condensed Matter Physics, The Weizmann Institute of Science, Rehovot, Israel, Dept. of Applied Physics, The University of Tokyo, Hungo, Bunkyo-ku, Tokyo, CREST, Japan Science and Technology Corporation (
AbstractDifferential magneto-optical imaging of the vortex-lattice melting process in Bi_2Sr_2CaCu_2O_8 crystals reveals unexpected effects of quenched disorder on the broadening of the first-order phase transition. The melting patterns show that the disorder-induced melting landscape T_m(H,r) is not fixed, but rather changes dramatically with varying field and temperature along the melting line. The changes in both the scale and shape of the landscape are found to result from the competing contributions of different types of quenched disorder which have opposite effects on the local melting transition.
Source arXiv, cond-mat/0108299
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