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Large critical current density in neutron-irradiated polycrystalline HgBa[sub 2]CuO[sub 4+[delta]]

Journal Article · · Physical Review, B: Condensed Matter; (United States)
 [1];  [2];  [3]; ;  [1];  [4];  [5]
  1. Science and Technology Center for Superconductivity and Department of Nuclear Engineering, University of Illinois at Urbana, Urbana, Illinois 61801 (United States)
  2. Science and Technology Center for Superconductivity, University of Illinois at Urbana, Urbana, Illinois 61801 (United States)
  3. Science and Technology Center for Superconductivity and Department of Material Science and Engineering, University of Illinois at Urbana, Urbana, Illinois 61801 (United States)
  4. Science and Technology Center for Superconductivity, Material Science Division, Argonne National Laboratory, Argonne, Illinois 60439 (United States)
  5. Material Science Division, Argonne National Laboratory, Argonne, Illinois 60439 (United States)
+ Show Author Affiliations

The effects of neutron irradiation on the superconducting properties of HgBa[sub 2]CuO[sub 4+[delta]] are reported. Enhancements in the magnetization critical current density ([ital J][sub [ital c]]), as calculated by the Bean model, vary with magnetic field and temperature and range from 1--2 orders of magnitude. Large values ([ital J][sub [ital c]][gt]10[sup 4] A/cm[sup 2]) are obtained above (0.5 T, 77 K) and (3 T, 50 K) after irradiation. A large shift in the irreversi- bility line toward higher field and temperature is also reported. These results demonstrate that HgBa[sub 2]CuO[sub 4+[delta]] is not intrinsically limited to low current density and may become a technologically important compound.

DOE Contract Number:
W-31109-ENG-38
OSTI ID:
6252900
Journal Information:
Physical Review, B: Condensed Matter; (United States), Journal Name: Physical Review, B: Condensed Matter; (United States) Vol. 48:13; ISSN 0163-1829; ISSN PRBMDO
Country of Publication:
United States
Language:
English

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Related Subjects

36 MATERIALS SCIENCE
360207* -- Ceramics
Cermets
& Refractories-- Superconducting Properties-- (1992-)
ALKALINE EARTH METAL COMPOUNDS
BARIUM COMPOUNDS
BARYONS
COPPER COMPOUNDS
CRITICAL CURRENT
CURRENTS
ELECTRIC CURRENTS
ELEMENTARY PARTICLES
FERMIONS
HADRONS
HIGH-TC SUPERCONDUCTORS
MAGNETIC FIELDS
MERCURY COMPOUNDS
NEUTRONS
NUCLEONS
PHYSICAL RADIATION EFFECTS
RADIATION EFFECTS
SUPERCONDUCTORS
TEMPERATURE DEPENDENCE
TEMPERATURE RANGE
TEMPERATURE RANGE 0065-0273 K
TRANSITION ELEMENT COMPOUNDS