Transverse- and zero-field. mu. SR (muon-spin-rotation) investigation of magnetism and superconductivity in (Y sub 1-x Pr sub x )Ba sub 2 Cu sub 3 O sub 7

Conference · Mon Jan 01 04:00:00 EST 1990

OSTI ID:6964221

Cooke, D W; Jahan, M S; Kwok, R S ^[1]; Lichti, R L; Adams, T R ^[2]; Boekema, C; Dawson, W K ^[3]; Kebede, A; Schwegler, J; Crow, J E; Mihalsin, T ^[4]

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1. Los Alamos National Lab., NM (USA)
2. Texas Tech Univ., Lubbock, TX (USA)
3. San Jose State Univ., CA (USA)
4. Temple Univ., Philadelphia, PA (USA)

Zero-field muon-spin-rotation ({mu}SR) measurements on (Y{sub 1-x}Pr{sub x})Ba{sub 2}Cu{sub 3}O{sub 7} (x = 1.0, 0.8, 0.6, and 0.54) show evidence for antiferromagnetic ordering of the Cu moments within the Cu--O planes, with Neel temperatures 285,220, 35, 30, and 20 K respectively. For x = 1.0 the local muon magnetic field is {approximately}16 mT, but decreases to {approximately}12 mT at 17 K, due to additional magnetic ordering. The zero-field data, in conjunction with transport data, allow construction of a complete diagram for this system. Transverse-field (1 kOe) {mu}SR data for x = 0.2 ({Tc} = 75 K) show that the muon depolarization is determined primarily by the Cu nuclear moments for T>{Tc}. Fitting the superconducting-state data to a BCS model yields an extrapolated zero-temperature magnetic penetration depth of 2170{angstrom}. 9 refs., 3 figs.

• Research Organization: Los Alamos National Lab., NM (USA)
• Sponsoring Organization: DOE/ER
• DOE Contract Number: W-7405-ENG-36
• OSTI ID: 6964221
• Report Number(s): LA-UR-90-1313; CONF-900489--1; ON: DE90010597
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360202 -- Ceramics
Cermets
& Refractories-- Structure & Phase Studies
360204* -- Ceramics
Cermets
& Refractories-- Physical Properties
656100 -- Condensed Matter Physics-- Superconductivity
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ALKALINE EARTH METAL COMPOUNDS
BARIUM COMPOUNDS
BARIUM OXIDES
CHALCOGENIDES
COPPER COMPOUNDS
COPPER OXIDES
DEPOLARIZATION
DIAGRAMS
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
HIGH-TC SUPERCONDUCTORS
MAGNETIC PROPERTIES
MEASURING METHODS
OXIDES
OXYGEN COMPOUNDS
PHASE DIAGRAMS
PHYSICAL PROPERTIES
PRASEODYMIUM COMPOUNDS
PRASEODYMIUM OXIDES
RARE EARTH COMPOUNDS
SUPERCONDUCTIVITY
SUPERCONDUCTORS
TRANSITION ELEMENT COMPOUNDS
YTTRIUM COMPOUNDS
YTTRIUM OXIDES