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High pressure synthesis of a new superconductor Sr2CuO2+xCl2-y induced by apical oxygen doping | Q.Q. Liu
; X. M. Qin
; Y. Yu
; F. Y. Li
; C. Dong
; C. Q. Jin
; | Date: |
18 Feb 2005 | Subject: | Superconductivity; Strongly Correlated Electrons | cond-mat.supr-con cond-mat.str-el | Abstract: | Using the apical oxygen doping mechanism, i.e. a partial substitution of divalence O for the monovalence Cl, a p-type oxychloride cuprate superconductor, Sr2CuO2+xCl2-y, was synthesized at high pressure high temperature. The x-ray diffraction refinement suggests the superconductor crystallizes into a 0201 structure with space group I4/mmm and lattice parameters being a=3.92A, c=15.6 A. The magnetic susceptibility as well as resistance measurements indicated that the bulk superconductivity with transition temperature 30K was achieved in the sample. | Source: | arXiv, cond-mat/0502449 | Services: | Forum | Review | PDF | Favorites |
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