Published August 2000 | Version v1
Journal article Metadata-only

Bi2(Sr, Ln)2CuOz (Ln = Nd, Sm) phases: stability, crystal growth and superconducting properties

Creators

  • 1. LPCM, Universite de Provence, Centre St-Charles, 3 Place Victor Hugo, 13331 Marseille Cedex 3 (France)
  • 2. Institute for Materials Research, Tohoku University, Katahira, Sendai 980-8577 (Japan)
  • 3. LPCM, Universite de Chouab Doukkali, Faculte des Sciences B.P. 26, El Jadida (Morocco)
  • 4. LPCM3, Materiaux a Finalite Specifique (E.A. 1356), Universite de Toulon et du Var, BP 132, 83957 La Garde Cedex (France)

Description

Bi2(Sr,Ln)2CuOz (Ln = Nd, Sm) single crystals were successfully grown by a self-flux method from stoichiometric and (Bi, Cu)-rich melts. Thermal analysis and thermogravimetry were used to determine stability and the melting sequence of Bi2(Sr,Ln)2CuOz phases in air. As-grown crystals of the ideal Bi2(Sr,Ln)2CuOz phase, of dimensions 1x0.5x0.03 mm3, exhibit superconducting behaviour with critical temperature Tc = 21 K for the Bi1.9Sr1.6Nd0.6CuOz crystal and Tc = 14 K for the Bi1.8Sr1.6Sm0.6CuOz crystal. The compositions of these crystals were homogeneous and close to the stoichiometric composition. We report on the growth of Bi2Sr2-xSmxCuOz single crystals of large dimensions 9x3x0.03 mm3 using Bi2Sr1.5Sm0.5CuOz as precursor and Bi2CuO4 as flux. (author)

Additional details

Publishing Information

Journal Title
Superconductor Science and Technology (Online)
Journal Volume
13
Journal Issue
8
Journal Page Range
p. 1155-1161
ISSN
1361-6668

Conference

Title
SMART/SUPERMAT conference
Acronym
SMART'99
Dates
19-23 Sep 1999
Place
Giens (France)

INIS

Country of Publication
United Kingdom
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
43111741
Subject category
S75: CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; S36: MATERIALS SCIENCE;
Resource subtype / Literary indicator
Conference
Descriptors DEI
BISMUTH OXIDES; CALCIUM OXIDES; COPPER OXIDES; CRYSTAL GROWTH; CUPRATES; HIGH-TC SUPERCONDUCTORS; LANTHANUM OXIDES; MONOCRYSTALS; STRONTIUM OXIDES; SUPERCONDUCTIVITY; TRANSITION TEMPERATURE
Descriptors DEC
ALKALINE EARTH METAL COMPOUNDS; BISMUTH COMPOUNDS; CALCIUM COMPOUNDS; CHALCOGENIDES; COPPER COMPOUNDS; CRYSTALS; ELECTRIC CONDUCTIVITY; ELECTRICAL PROPERTIES; LANTHANUM COMPOUNDS; OXIDES; OXYGEN COMPOUNDS; PHYSICAL PROPERTIES; RARE EARTH COMPOUNDS; STRONTIUM COMPOUNDS; SUPERCONDUCTORS; THERMODYNAMIC PROPERTIES; TRANSITION ELEMENT COMPOUNDS; TYPE-II SUPERCONDUCTORS

Optional Information

Notes
25 refs; This record replaces 31041685