Study of the formation of the high-temperature superconducting phase in BiSrCaCu sub 2 O sub y by microwave absorption

Journal Article · Thu May 03 04:00:00 EDT 1990 · Journal of Physical Chemistry; (USA)

DOI:https://doi.org/10.1021/j100372a095· OSTI ID:6335568

Cuvier, S; Puri, M; Bear, J; Kevan, L ^[1]

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1. Univ. of Houston, TX (USA)

The formation of the 120 K superconducting phase in the BiSrCaCu{sub 2}O{sub y} system has been investigated by microwave absorption. This material is characterized by an intense low-field microwave absorption (LFMA) below the superconducting transition temperature T{sub c} and a g = 2 electron spin resonance (ESR) signal above T{sub c}. LFMA is shown to be particularly effective and discriminatory for following the formation of the high-T{sub c} phases in this system. The purity of these superconducting phases is also reflected by the intensity of the g = 2 signal. Various stages of sample preparation are studied to follow the formation of the 120 K phase. LFMA and ESR results are also compared and contrasted with resistance measurements.

• OSTI ID: 6335568
• Journal Information: Journal of Physical Chemistry; (USA), Journal Name: Journal of Physical Chemistry; (USA) Vol. 94:9; ISSN JPCHA; ISSN 0022-3654
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360204* -- Ceramics
Cermets
& Refractories-- Physical Properties
ALKALINE EARTH METALS
BISMUTH
CALCIUM
CHALCOGENIDES
COPPER COMPOUNDS
COPPER OXIDES
DATA
DATA ANALYSIS
ELECTROMAGNETIC RADIATION
ELEMENTS
EXPERIMENTAL DATA
INFORMATION
LOW TEMPERATURE
MEASURING INSTRUMENTS
MEASURING METHODS
METALS
MICROWAVE RADIATION
NUMERICAL DATA
OXIDES
OXYGEN COMPOUNDS
PHASE STUDIES
RADIATIONS
STRONTIUM
SUPERCONDUCTORS
TRANSITION ELEMENT COMPOUNDS