RAMAN-STUDY OF THE HG0.7CR0.3SR2CUO4+DELTA SUPERCONDUCTORS

Authors
LEE SY CHANG BY YANG IS GWAK JH KIM SJ CHOI JH LEE SI YAKHMI JV MANDAL JB BANDYOPADHYAY B GHOSH B
Citation
Sy. Lee et al., RAMAN-STUDY OF THE HG0.7CR0.3SR2CUO4+DELTA SUPERCONDUCTORS, Physica. C, Superconductivity, 282, 1997, pp. 1039-1040
Citations number
3
Categorie Soggetti
Physics, Applied
Journal title
Physica. C, Superconductivity → ACNP
ISSN journal
09214534
Volume
282
Year of publication
1997
Part
2
Pages
1039 - 1040
Database
ISI
SICI code
0921-4534(1997)282:<1039:ROTHS>2.0.ZU;2-4
Abstract
The focal environment of the apical oxygens (O-A) in the Sr-substitute d mercury-based superconductor Hg0.7Cr0.3Sr2CuO4+delta is investigated using Raman spectroscopy. Raman spectra from the Sr-substituted Hg-12 01 samples show broad O-A A(1g) double peaks at 553 and 583 cm(-1), wh ich 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 S r-substituted Hg-1201 superconductors indicate changes in the environm ent of O-A in the Sr-substituted mercury-based superconductors.