Published 1989
| Version v1
Book
On the origin of low field microwave absorption in the high Tc superconductors
- 1. Bhabha Atomic Research Centre, Trombay, Bombay 400 085 (India)
Description
It is shown that the strong signal near zerofield in EPR spectrometric measurements of high Tc superconductors is made up of predominant nonresonant reflection of microwaves below Tc under the balanced bridge conditions and a resonant absorption at X-band. The non resonant reflection is associated with the transformation of the compound from Meissner phase to mixed phase. The role of hole trapped oxygen centers in the resonant part of the low field signal was examined by studying the EPR of (CuO + KO2) system. A clear evidence is presented for a low filed resonance absorption arising due to exchange interaction of Cu2+ and O- in (CuO + KO2) heated to 473 K
Additional details
Publishing Information
- Publisher
- Elsevier Science Pub. Co., Inc.
- Imprint Place
- New York, NY (USA)
- Imprint Title
- Proceedings of the international conference on materials and mechanisms of superconductivity. High temperature superconductors II. Part 1-2
- Imprint Pagination
- 1744 p.
- Journal Page Range
- p. 1589-1590.
Conference
- Title
- International conference on materials and mechanisms of superconductivity - high-temperature superconductors II.
- Dates
- 23-28 Jul 1989.
- Place
- Stanford, CA (USA).
INIS
- Country of Publication
- United States
- Country of Input or Organization
- United States
- INIS RN
- 21056211
- Subject category
- S75: CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; S36: MATERIALS SCIENCE; S36: MATERIALS SCIENCE;
- Resource subtype / Literary indicator
- Conference
- Descriptors DEI
- ABSORPTION SPECTRA; COPPER IONS; COPPER OXIDES; ELECTRON SPIN RESONANCE; EXCHANGE INTERACTIONS; HIGH TEMPERATURE; HOLE MOBILITY; MEISSNER-OCHSENFELD EFFECT; MICROWAVE RADIATION; OXYGEN IONS; PHASE STUDIES; POTASSIUM OXIDES; SUPERCONDUCTIVITY; SUPERCONDUCTORS; TEMPERATURE DEPENDENCE
- Descriptors DEC
- ALKALI METAL COMPOUNDS; ATOMIC IONS; CHALCOGENIDES; CHARGED PARTICLES; COPPER COMPOUNDS; ELECTRIC CONDUCTIVITY; ELECTRICAL PROPERTIES; ELECTROMAGNETIC RADIATION; INTERACTIONS; IONS; MAGNETIC RESONANCE; MOBILITY; OXIDES; OXYGEN COMPOUNDS; PHYSICAL PROPERTIES; POTASSIUM COMPOUNDS; RADIATIONS; RESONANCE; SPECTRA; TRANSITION ELEMENT COMPOUNDS
Optional Information
- Secondary number(s)
- CONF-890718--.