Published 1988 | Version v1
Book Metadata-only

Neutron diffraction studies of high T/sub c/ superconductors

Creators

  • 1. Argonne National Lab., Argonne, IL (USA)

Description

The authors investigated the structure and composition of La/sub 2/CuO/sub 4/ (both pure and Sr-doped) and Nd(Ba/sub 2-x/Nd/sub x/)Cu/sub 3/O/sub 7/ using powder neutron diffraction. In La/sub 2-x/Sr/sub x/CuO/sub 4/, T/sub c/ reaches its maximum at x=0.15, after which vacancies are introduced in the 2D planes and superconductivity is destroyed. Superconductivity in La/sub 2/CuO/sub 4/ is not bulk. No evidence for nonstoichiometry in this material can be observed. In the Nd(Ba/sub 2-x/Nd/sub x/)Cu/sub 3/O/sub 7/ system, T/sub c/ is a complex function of oxygen ordering and electronic effects

Additional details

Publishing Information

Publisher
Materials Research Society.
Imprint Place
Pittsburgh, PA (USA)
ISBN
0-931837-67-7
Imprint Title
High-temperature superconductors
Journal Page Range
vp.

Conference

Title
Symposium on high temperature superconductors.
Dates
30 Nov - 5 Dec 1987.
Place
Boston, MA (USA).

INIS

Country of Publication
United States
Country of Input or Organization
United States
INIS RN
20032934
Subject category
S36: MATERIALS SCIENCE; S75: CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; S36: MATERIALS SCIENCE;
Resource subtype / Literary indicator
Conference
Descriptors DEI
BARIUM OXIDES; CHEMICAL COMPOSITION; COPPER OXIDES; ELECTRONIC STRUCTURE; HIGH TEMPERATURE; LANTHANUM OXIDES; MICROSTRUCTURE; NEODYMIUM OXIDES; NEUTRON DIFFRACTION; OXYGEN; RESPONSE MODIFYING FACTORS; STRONTIUM ADDITIONS; SUPERCONDUCTIVITY; SUPERCONDUCTORS; TWO-DIMENSIONAL CALCULATIONS; VACANCIES
Descriptors DEC
ALKALINE EARTH METAL COMPOUNDS; BARIUM COMPOUNDS; CHALCOGENIDES; COHERENT SCATTERING; COPPER COMPOUNDS; CRYSTAL DEFECTS; CRYSTAL STRUCTURE; DIFFRACTION; ELECTRIC CONDUCTIVITY; ELECTRICAL PROPERTIES; ELEMENTS; LANTHANUM COMPOUNDS; NEODYMIUM COMPOUNDS; NONMETALS; OXIDES; OXYGEN COMPOUNDS; PHYSICAL PROPERTIES; POINT DEFECTS; RARE EARTH COMPOUNDS; SCATTERING; TRANSITION ELEMENT COMPOUNDS