Changes of the dimensionality and Tc through the iodine intercalation and oxidation in Bi2Sr2CaCu2O8+δ single crystals
Creators
- 1. Department of Applied Physics, Faculty of Engineering, Tohoku University, Aramaki Aoba, Aoba-ku, Sendai 980-77 (Japan)
- 2. Institute for Materials Research, Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai 980-77 (Japan)
- 3. Research Institute for Electronic Science, Hokkaido University, Kita-ku, Sapporo 060 (Japan)
- 4. National Institute for Research in Inorganic Materials, 1-1 Namiki, Tsukuba 305 (Japan)
- 5. Department of Physics, Faculty of Science, Tokyo Institute of Technology, 2-12-1 Oh-Okayama, Meguro-ku, Tokyo 152 (Japan)
Description
The effects of stage-one iodine intercalation and oxidation on the dimensionality of the physical properties and on the superconducting transition temperature Tc have been investigated in Bi2Sr2CaCu2O8+δ single crystals. Both intercalation and oxidation change the dimensionality of the normal-state properties from pseudo-two-dimensional to three-dimensional, decrease Tc and also change the magnetic-field dependence of the activation energy in the flux creep. The broadening of the resistive superconducting-transition under magnetic fields is suppressed through only the oxidation. These changes through the intercalation and oxidation have been found to be explained by the multilayer model, where a high-Tc superconductor is regarded as an alternating stack of the CuO2 layer (S layer) and the block layer (N layer), taking account of the proximity effect and of the redistribution of carriers to the S and N layers. We have arrived at the conclusion that the multilayer model can be one of the candidates for the model of high-Tc superconductors
Additional details
Publishing Information
- Journal Title
- Physical Review. B, Condensed Matter
- Journal Volume
- 52
- Journal Issue
- 21
- Journal Page Range
- p. 15598-15606.
- ISSN
- 0163-1829
- CODEN
- PRBMDO
INIS
- Country of Publication
- United States
- Country of Input or Organization
- United States
- INIS RN
- 27040213
- Subject category
- S75: CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY;
- Descriptors DEI
- ACTIVATION ENERGY; ANISOTROPY; BISMUTH OXIDES; CALCIUM OXIDES; CLATHRATES; COHERENCE LENGTH; CRITICAL FIELD; CUPRATES; DIMENSIONS; ELECTRIC CONDUCTIVITY; HIGH-TC SUPERCONDUCTORS; IODINE OXIDES; MAGNETIC FLUX; OXIDATION; PROXIMITY EFFECT; STRESS RELAXATION; STRONTIUM OXIDES; TRANSITION TEMPERATURE
- Descriptors DEC
- ALKALINE EARTH METAL COMPOUNDS; BISMUTH COMPOUNDS; CALCIUM COMPOUNDS; CHALCOGENIDES; CHEMICAL REACTIONS; COPPER COMPOUNDS; ELECTRICAL PROPERTIES; ENERGY; HALOGEN COMPOUNDS; IODINE COMPOUNDS; MAGNETIC FIELDS; OXIDES; OXYGEN COMPOUNDS; PHYSICAL PROPERTIES; STRONTIUM COMPOUNDS; SUPERCONDUCTORS; THERMODYNAMIC PROPERTIES; TRANSITION ELEMENT COMPOUNDS