Presence of tri-iodide ions in iodine-intercalatedIBi2Sr2CaCu2O8superconductors

Autor:	A. L. Verma, Pham V. Huong
Rok vydání:	1993
Předmět:	chemistry.chemical_classification Superconductivity Materials science Phonon Transition temperature Iodide Intercalation (chemistry) Crystal structure Ion Crystallography symbols.namesake chemistry symbols Raman spectroscopy
Zdroj:	Physical Review B. 48:9869-9872
ISSN:	1095-3795 0163-1829
Popis:	Stage-1 iodine-intercalated IBi 2 Sr 2 CaCu 2 O 8 single crystals with T c =78 K were studied by Raman microspectroscopy in comparison with undoped Bi 2 Sr 2 CaCu 2 O 8 . Evidence is shown for the existence of an asymmetrical I 3 - state and a weak interaction is revealed between this ion and the adjacent Bi-O layers. The phonon coupling that initially exists in the identical, close, and staggered Bi-O bonds along the c axis, disappears as a result of the iodine intercalation in the host network where the Bi-O bonds become aligned along this c axis
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::af20ad1e7c739809c6e9f409d7c72e82 https://doi.org/10.1103/physrevb.48.9869 Zobrazit plný text záznamu