Muon-spin-rotation study of magnetism in La sub 1. 85 Sr sub 0. 15 CuO sub 4 and YBa sub 2 Cu sub 3 O sub x below 90 mK

Journal Article · Mon Nov 06 00:00:00 EST 1989 · Physical Review Letters; (USA)

DOI:https://doi.org/10.1103/PhysRevLett.63.2136· OSTI ID:5178391

Kiefl, R F; Brewer, J H; Carolan, J; Dosanjh, P; Hardy, W N; Kadono, R; Kempton, J R; Krahn, R; Schleger, P; Yang, B X; Zhou, H ^[1]; Luke, G M; Sternlieb, B; Uemura, Y J ^[2]; Kossler, W J; Yu, X H ^[3]; Ansaldo, E J ^[4]

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1. TRIUMF, Department of Physics, University of British Columbia, Vancouver, Canada V6T 2A3 (Canada)
2. Department of Physics, Columbia University, New York, New York 10027 (USA)
3. Department of Physics, College of William Mary, Williamsburg, Virginia 23185 (USA)
4. Physics Department, University of Saskatchewan, Saskatoon, Canada S7N 0W0 (Canada)

Internal magnetic fields in YBa{sub 2}Cu{sub 3}O{sub {ital x}} and La{sub 1.85}Sr{sub 0.15}CuO{sub 4} have been investigated below 90 mK using muon spin rotation. In YBa{sub 2}Cu{sub 3}O{sub {ital x}} the static internal magnetic field at the muon site due to magnetic ordering remains constant with increasing {ital x} up until {ital x}=6.30 and then rapidly approaches zero just above {ital x}=6.44. In heavily doped samples of YBa{sub 2}Cu{sub 3}O{sub {ital x}} ({ital x}{ge}6.54, {ital T}{sub {ital c}}{ge}52 K) and La{sub 2{minus}{ital y}}Sr{sub {ital y}}CuO{sub 4} ({ital y}=0.15, {ital T}{sub {ital c}}=37 K) we find little evidence for static or slowly fluctuating electronic moments. These results clearly establish that static magnetic order is destroyed in regions of high carrier concentration.

• OSTI ID: 5178391
• Journal Information: Physical Review Letters; (USA), Vol. 63:19; ISSN 0031-9007
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
BARIUM OXIDES
MAGNETIC MOMENTS
COPPER OXIDES
STRONTIUM OXIDES
SUPERCONDUCTORS
YTTRIUM OXIDES
CHEMICAL COMPOSITION
CRYSTAL DOPING
FLUCTUATIONS
GROUND STATES
MUON SPIN RELAXATION
STABILIZATION
SUPERCONDUCTIVITY
TIME DEPENDENCE
TRANSITION TEMPERATURE
ULTRALOW TEMPERATURE
VERY LOW TEMPERATURE
ALKALINE EARTH METAL COMPOUNDS
BARIUM COMPOUNDS
CHALCOGENIDES
COPPER COMPOUNDS
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
ENERGY LEVELS
OXIDES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
RELAXATION
STRONTIUM COMPOUNDS
THERMODYNAMIC PROPERTIES
TRANSITION ELEMENT COMPOUNDS
VARIATIONS
YTTRIUM COMPOUNDS
360204* - Ceramics
Cermets
& Refractories- Physical Properties