Published July 2006 | Version v1
Journal article Metadata-only

Crystal growth of a high-Tc SmBCO superconductor in 1 atm oxygen pressure

Creators

  • 1. Department of Physics, Shanghai Jiao Tong University, 1954 Huashan Road, Shanghai 200030 (China)
  • 2. Department of Physics, University of Waterloo, 200 University Avenue West, Waterloo, ON, N2L 3P7 (Canada)
  • 3. Department of Material Science, Fudan University, 220 Handan Road, Shanghai 200433 (China)
  • 4. Institute of Physics ASCR, Na Slovance 2, CZ-182 21 Praha 8 (Czech Republic)
  • 5. Department of Physics, Zhoukou Normal University, 21 Qiyi Road, Zhoukou 466000 (China)

Description

Sm1+xBa2-xCu3Oz (SmBCOss) single crystals with Tc = 95 K and a sharp transition were grown by top-seeded solution growth in 1 atm oxygen pressure. Compositional analysis by the inductively coupled plasma (ICP) technique and Tc measurement with a superconducting quantum interference device (SQUID) indicate that a nearly stoichiometric SmBCO phase with a high Tc value can be reached in a rather wide range of liquid compositions and oxygen partial pressures. Specific features of the SmBCO system phase diagram were elucidated that explain why the SmBCO single crystals grow more easily than YBa2Cu3Oz (YBCO) or Nd1+xBa2-xCu3Oz (NdBCO) ones. The surface morphology of nanostripes was investigated by atomic force microscopy (AFM). The nanostripes were thought to act as an effective pinning medium, due to the comparable scale with the vortex core. Furthermore, two SmBCO samples with typical Tc values were analysed by energy-dispersive spectroscopy (EDS) and the composition fluctuations along their stripes were studied

Availability note (English)

Available online at http://stacks.iop.org/0953-2048/19/S506/sust6_7_S16.pdf or at the Web site for the journal Superconductor Science and Technology (ISSN 1361-6668) http://www.iop.org/

Additional details

Identifiers

URL
http://stacks.iop.org/0953-2048/19/S506/sust6_7_S16.pdf;
DOI
10.1088/0953-2048/19/7/S16;
PII
S0953-2048(06)15990-4;

Publishing Information

Journal Title
Superconductor Science and Technology
Journal Volume
19
Journal Issue
7
Journal Page Range
p. S506-S509
ISSN
0953-2048
CODEN
SUSTEF

Conference

Title
5. international workshop on processing and applications of superconducting (RE)BCO large grain materials
Acronym
PASREG 2005
Dates
21-23 Oct 2005
Place
Tokyo (Japan)

INIS

Country of Publication
United Kingdom
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
37085043
Subject category
S36: MATERIALS SCIENCE;
Resource subtype / Literary indicator
Conference
Descriptors DEI
ATOMIC FORCE MICROSCOPY; BARIUM COMPOUNDS; CRYSTAL GROWTH; CUPRATES; HIGH-TC SUPERCONDUCTORS; MONOCRYSTALS; OXYGEN; PARTIAL PRESSURE; PHASE DIAGRAMS; SAMARIUM COMPOUNDS; SQUID DEVICES; YTTRIUM COMPOUNDS
Descriptors DEC
ALKALINE EARTH METAL COMPOUNDS; COPPER COMPOUNDS; CRYSTALS; DIAGRAMS; ELECTRONIC EQUIPMENT; ELEMENTS; EQUIPMENT; FLUXMETERS; INFORMATION; MEASURING INSTRUMENTS; MICROSCOPY; MICROWAVE EQUIPMENT; NONMETALS; OXYGEN COMPOUNDS; PHYSICAL PROPERTIES; RARE EARTH COMPOUNDS; SUPERCONDUCTING DEVICES; SUPERCONDUCTORS; THERMODYNAMIC PROPERTIES; TRANSITION ELEMENT COMPOUNDS; TYPE-II SUPERCONDUCTORS