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Raman study of the Hg0.7Cr0.3Sr2CuO4+δ superconductors

Title
Raman study of the Hg0.7Cr0.3Sr2CuO4+δ superconductors
Authors
Lee S.-Y.Chang B.-Y.Yang I.-S.Gwak J.-H.Kim S.-J.Choi J.-H.Lee S.-I.Yakhmi J.V.Mandal J.B.Bandyopadhyay B.Ghosh B.
Ewha Authors
김성진양인상
SCOPUS Author ID
김성진scopus; 양인상scopus
Issue Date
1997
Journal Title
Physica C: Superconductivity and its Applications
ISSN
0921-4534JCR Link
Citation
Physica C: Superconductivity and its Applications vol. 282-287, no. PART 2, pp. 1039 - 1040
Indexed
SCI; SCIE; SCOPUS scopus
Document Type
Article
Abstract
The local environment of the apical oxygens (OA) in the Sr-substituted mercury-based superconductor Hg0.7Cr0.3Sr2CuCuO4+δ is investigated using Raman spectroscopy. Raman spectra from the Sr-substituted Hg-1201 samples show broad OA A1g double peaks at 553 and 583 cm-1, which are 10 -20 cm-1 lower than the pristine Hg-1201. The existence of, and lower shift of, the double peaks in the Raman spectra of the Sr-substituted Hg-1201 superconductors indicate changes in the environment of OA in the Sr-substituted mercury-based superconductors.
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자연과학대학 > 화학·나노과학전공 > Journal papers
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