PRESENCE OF TRI-IODIDE IONS IN IODINE-INTERCALATED IBI2SR2CACU2O8 SUPERCONDUCTORS

被引：23

作者：

HUONG, PV ^{[1
]}

VERMA, AL ^{[1
]}

机构：

[1] NE HILL UNIV,SHILLONG 793003,MEGHALAYA,INDIA

来源：

PHYSICAL REVIEW B | 1993年 / 48卷 / 13期

关键词：

D O I：

10.1103/PhysRevB.48.9869

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Stage-1 iodine-intercalated IBi2Sr2CaCu2O8 single crystals with T(c) = 78 K were studied by Raman microspectroscopy in comparison with undoped Bi2Sr2CaCu2O8. Evidence is shown for the existence of an asymmetrical I3- 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.

引用

页码：9869 / 9872

页数：4

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