Published December 1992
| Version v1
Journal article
XPS study on Bi2Sr2-XCa1+XCu2O8+d
- 1. Taejon Univ., Taejon ( KR)
- 2. Waseda University, Tokyo (Japan)
- 3. Chungnam National Univ., Taejon (Korea, Republic of)
Description
We have elucidated the distribution of the Sr and Ca atoms in the Bi2 Sr2-XCa1+XCu2O8+d system (0≤x≤0.8) by X-ray photoelectron spectroscopy (XPS). The carrier concentration and the superconducting temperature Tc have a maximum at x=0.2 and then monotonously decrease with increasing x. From the XPS measurements, the Sr3d and Ca2p spectra are found to be decomposed into two states. We have clarified the occupation of the Sr and Ca atoms in the Sr- and Ca-layers and found that the deficiency in the Sr-layer have a great influence on superconductivity. (Author)
Additional details
Publishing Information
- Journal Title
- Chungnam Journal of Sciences, Chungnam National University
- Journal Volume
- 19
- Journal Issue
- 2
- Journal Page Range
- p. 81-86.
- CODEN
- CJOSDA
INIS
- Country of Publication
- Korea, Republic of
- Country of Input or Organization
- Korea, Republic of
- INIS RN
- 25014229
- Subject category
- S36: MATERIALS SCIENCE; S75: CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY;
- Descriptors DEI
- BISMUTH BASE ALLOYS; CALCIUM; CARRIERS; STRONTIUM; SUPERCONDUCTING COMPOSITES; SUPERCONDUCTIVITY; SUPERCONDUCTORS
- Descriptors DEC
- ALKALINE EARTH METALS; ALLOYS; BISMUTH ALLOYS; COMPOSITE MATERIALS; ELECTRIC CONDUCTIVITY; ELECTRICAL PROPERTIES; ELEMENTS; MATERIALS; METALS; PHYSICAL PROPERTIES