Microwave absorption studies on high-T sub c superconductors and related materials 7--ESR of DPPH coated on a thin BiSrCaCuO film fabricated on MgO(100) substrate
- Superconductivity Research Lab., ISTEC, 10-13 Shinonome 1-chome, Koto-ku, Tokyo 135 (JP)
In this paper, ESR of DPPH coated on a Bi-Sr-Ca-Cu-O (BSCCO) film (350 {Angstrom} thick) fabricated on MgO(100) substrate by MOCVD is studied. Temperature dependence of the ESR peak-to-peak linewidth, {Delta}H{sub pp}, and the effect of applied magnetic field on {Delta}H{sub pp} are below about 100 K. The results are compared with those of ESR of DPPH coated on ceramic Y-Ba-Cu-O samples (powder and bulk) made by the MPMG method. The DPPH ESR for the BSCCO film reveals that {Delta}H{sub pp} was independent of applied magnetic field up to about 9 kG. In addition, no similarity between the temperature dependence of the excess ESR linewidth of the DPPH and that of critical current density was found for the BSCCO film. These results for the BSCCO film are different from those for the MPMG YBCO samples.
- OSTI ID:
- 7039581
- Journal Information:
- International Journal of Modern Physics B; (United States), Vol. 6:11; ISSN 0217-9792
- Country of Publication:
- United States
- Language:
- English
Similar Records
Microwave absorption studies on high-T sub c superconductors and related materials IV ESR as a probe of flux pinning in Y-Ba-Cu-O superconductors prepared by the MPMG method
Microwave absorption studies on high-T sub c superconductors and related materials II; Electron spin resonance of DPPH coated on Y sub 1 Ba sub 2 Cu sub 3 O sub y as a probe of magnetic field variations
Related Subjects
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
BISMUTH COMPOUNDS
COATINGS
ELECTRON SPIN RESONANCE
CALCIUM COMPOUNDS
STRONTIUM COMPOUNDS
ABSORPTION
BARIUM COMPOUNDS
CHEMICAL VAPOR DEPOSITION
COMPARATIVE EVALUATIONS
CRITICAL CURRENT
CUPRATES
DPPH
HIGH-TC SUPERCONDUCTORS
LINE WIDTHS
MAGNETIC FIELDS
MICROWAVE RADIATION
SUPERCONDUCTING FILMS
TEMPERATURE DEPENDENCE
TEMPERATURE RANGE 0065-0273 K
YTTRIUM COMPOUNDS
ALKALINE EARTH METAL COMPOUNDS
CHEMICAL COATING
COPPER COMPOUNDS
CURRENTS
DEPOSITION
ELECTRIC CURRENTS
ELECTROMAGNETIC RADIATION
EVALUATION
FILMS
MAGNETIC RESONANCE
NITRO COMPOUNDS
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
OXYGEN COMPOUNDS
RADIATIONS
RADICALS
RESONANCE
SORPTION
SUPERCONDUCTORS
SURFACE COATING
TEMPERATURE RANGE
TRANSITION ELEMENT COMPOUNDS
360207* - Ceramics
Cermets
& Refractories- Superconducting Properties- (1992-)
661200 - Techniques of General Use in Physics- (1992-)