TEM study of new high-T/sub c/ superconductors in the Bi-Sr-Ca-Cu-O system

Journal Article · Sat Oct 01 04:00:00 EDT 1988 · Modern Physics Letters B; (USA)

DOI:https://doi.org/10.1142/S0217984988000965· OSTI ID:5733350

Li, J Q; Yang, D Y; Li, F H; Ran, Z Y; Zhao, Z X ^[1]

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1. Institute of Physics, Chinese Academia Sinica, Beijing (CN)

Electron diffraction and high resolution electron microscopy have been used to study the structure of superconducting phases in Bi-Sr-Ca-Cu-O systems. The average structures of two main superconducting phases Bi/sub 2/Sr/sub 2/CaCu/sub 2/O/sub y/ and Bi/sub 2/Sr/sub 2/Ca/sub 2/Cu/sub 3/O/sub y/ have orthorhombic cells with lattice parameters a=5.41A, b=5.43A, c=30.7A and a=5.41A, b=5.43A, c=36.8A respectively. Incommensurate modulations with wave vector nearly along the b axis appear in both phases. A minor phase in this system with the same lattice parameters a and b but smaller c (=24.6A) has also been observed. Intergrowth of lamellae of different phases does occur in Bi-Sr-Ca-Cu-O system.

• OSTI ID: 5733350
• Journal Information: Modern Physics Letters B; (USA), Journal Name: Modern Physics Letters B; (USA) Vol. 2:9; ISSN 0217-9849; ISSN MPLBE
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360202* -- Ceramics
Cermets
& Refractories-- Structure & Phase Studies
360204 -- Ceramics
Cermets
& Refractories-- Physical Properties
656002 -- Condensed Matter Physics-- General Techniques in Condensed Matter-- (1987-)
656100 -- Condensed Matter Physics-- Superconductivity
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ALKALINE EARTH METAL COMPOUNDS
BISMUTH COMPOUNDS
BISMUTH OXIDES
CALCIUM COMPOUNDS
CALCIUM OXIDES
CHALCOGENIDES
COPPER COMPOUNDS
COPPER OXIDES
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
ELECTRON MICROSCOPY
HIGH TEMPERATURE
LAMELLAE
LATTICE PARAMETERS
MICROSCOPY
OXIDES
OXYGEN COMPOUNDS
PHASE STUDIES
PHYSICAL PROPERTIES
STRONTIUM COMPOUNDS
STRONTIUM OXIDES
SUPERCONDUCTIVITY
SUPERCONDUCTORS
TRANSITION ELEMENT COMPOUNDS
TRANSMISSION ELECTRON MICROSCOPY