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Substitution of Mn for Cu in the high T/sub c/ superconductor YBa/sub 2/Cu/sub 3/O/sub 7-delta/

Conference · · IEEE Trans. Magn.; (United States)
OSTI ID:5917415
; ; ;
Samples of YBa/sub 2/(Cu/sub 1-x/Mn/sub x/)/sub 3/O/sub 7-delta/, with x = 0.0, 0.025, 0.05, 0.75, 0.10, 0.15 and 0.20, were prepared by the solid diffusion method. Superconductivity with T/sub c/ in the range of 84 - 92 K was observed through electrical resistivity and magnetic susceptibility measurements. The substitution for Mn for Cu practically did not affect the onset temperature in the resistive transition, although a strong correlation between the transition width broadening and the increase of Mn content was observed. This fact is consistent with the reduction of the superconducting volume fraction determined through the normalized susceptibility data. X-ray diffraction revealed the occurrence of additional phases increasing with the Mn concentration.
Research Organization:
8950112; 3267800
OSTI ID:
5917415
Report Number(s):
CONF-880812-
Conference Information:
Journal Name: IEEE Trans. Magn.; (United States) Journal Volume: 25:2
Country of Publication:
United States
Language:
English

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Related Subjects

36 MATERIALS SCIENCE
360202 -- Ceramics
Cermets
& Refractories-- Structure & Phase Studies
360204 -- Ceramics
Cermets
& Refractories-- Physical Properties
420201* -- Engineering-- Cryogenic Equipment & Devices
656100 -- Condensed Matter Physics-- Superconductivity
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ALKALINE EARTH METAL COMPOUNDS
BARIUM COMPOUNDS
BARIUM OXIDES
CHALCOGENIDES
COHERENT SCATTERING
COPPER COMPOUNDS
COPPER OXIDES
DIFFRACTION
DIFFUSION
ELECTRIC CONDUCTIVITY
ELECTRIC IMPEDANCE
ELECTRICAL PROPERTIES
ELEMENTS
FABRICATION
HIGH TEMPERATURE
IMPEDANCE
MAGNETIC PROPERTIES
MAGNETIC SUSCEPTIBILITY
MANGANESE
MATERIALS
MATRIX MATERIALS
MEASURING METHODS
METALS
OXIDES
OXYGEN COMPOUNDS
PHASE STUDIES
PHYSICAL PROPERTIES
SCATTERING
SUPERCONDUCTIVITY
SUPERCONDUCTORS
THERMODYNAMIC PROPERTIES
TRANSITION ELEMENT COMPOUNDS
TRANSITION ELEMENTS
TRANSITION TEMPERATURE
X-RAY DIFFRACTION
YTTRIUM COMPOUNDS
YTTRIUM OXIDES