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A Possible Crypto-Superconducting Structure in a Superconducting Ferromagnet | C. W. Chu
; Y. Y. Xue
; S. Tsui
; J. Cmaidalka
; A. K. Heilman
; B. Lorenz
; R. L. Meng
; | Date: |
14 Feb 2000 | Journal: | Physica C 335, 231 (2000) | Subject: | Superconductivity | cond-mat.supr-con | Affiliation: | 1,2), Y. Y. Xue , S. Tsui , J. Cmaidalka , A. K. Heilman , B. Lorenz and R. L. Meng ( Department of Physics and TCSUH, University of Houston, Houston, Texas, LBNL, Berkeley, California, Department of Chemistry and TCSUH, University of Houston, Hous | Abstract: | We have measured the dc and ac electrical and magnetic properties in various magnetic fields of the recently reported superconducting ferromagnet RuSr2GdCu2O8. Our reversible magnetization measurements demonstrate the absence of a bulk Meissner state in the compound below the superconducting transition temperature. Several scenarios that might account for the absence of a bulk Meissner state, including the possible presence of a sponge-like non-uniform superconducting or a crypto-superconducting structure in the chemically uniform Ru-1212, have been proposed and discussed. | Source: | arXiv, cond-mat/0002212 | Services: | Forum | Review | PDF | Favorites |
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