Published October 1, 2005
| Version v1
Journal article
Spatially heterogeneous character of superconductivity in MgB2 as revealed by local probe and bulk measurements
Creators
- 1. Hiroshima University, Faculty of Integrated Arts and Sciences, Higashi-Hiroshima 739-8521 (Japan)
- 2. Institute of Physics, prospekt Nauki 46, 03028 Kiev (Ukraine)
- 3. Institute of Physics, Al. Lotnikow 32/46, PL-02-668 Warsaw (Poland)
- 4. Graduate School of Advanced Sciences of Matter, Hiroshima University, Higahsi-Hiroshima 739-8530 (Japan)
- 5. Department of Physics, Aoyama-Gakuin University, Kanagawa 229-8558 (Japan)
- 6. Department of Chemistry, University of Warsaw, Al. Zwirki i Wigury 101, PL-02-089 Warsaw (Poland)
Description
Controversial tunnel and point-contact experimental data on superconducting gap values in MgB2 are analyzed and interpreted in terms of the spatial inhomogeneity and the proximity effect appropriate to this layered compound. Existing specific heat measurements are explained in the same way. Break-junction tunnel studies of polycrystalline MgB2 samples are carried out and a clear-cut multiplicity of gaps is observed, although the shapes of the I-V characteristics vary substantially
Additional details
Identifiers
- DOI
- 10.1016/j.physc.2005.03.029;
- PII
- S0921-4534(05)00254-6;
Publishing Information
- Journal Title
- Physica. C, Superconductivity
- Journal Volume
- 426-431
- Journal Page Range
- p. 230-233
- ISSN
- 0921-4534
- CODEN
- PHYCE6
Conference
- Title
- 17. International symposium on superconductivity - Advances in superconductivity XVII
- Acronym
- ISS 2004
- Dates
- 23-25 Nov 2004
- Place
- Niigata (Japan)
INIS
- Country of Publication
- Netherlands
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 37111929
- Subject category
- S75: CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY;
- Resource subtype / Literary indicator
- Conference
- Descriptors DEI
- ELECTRIC CONTACTS; MAGNESIUM BORIDES; POLYCRYSTALS; PROBES; PROXIMITY EFFECT; SPECIFIC HEAT; SUPERCONDUCTIVITY; SUPERCONDUCTORS
- Descriptors DEC
- ALKALINE EARTH METAL COMPOUNDS; BORIDES; BORON COMPOUNDS; CRYSTALS; ELECTRIC CONDUCTIVITY; ELECTRICAL EQUIPMENT; ELECTRICAL PROPERTIES; EQUIPMENT; MAGNESIUM COMPOUNDS; PHYSICAL PROPERTIES; THERMODYNAMIC PROPERTIES
Optional Information
- Copyright
- Copyright (c) 2005 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.