Observation of magnetic order in the double-layer system La sub 2 M Cu sub 2 O sub 6+. delta. ( M =Ca,Sr)

Journal Article · Sat Aug 01 00:00:00 EDT 1992 · Physical Review, B: Condensed Matter; (United States)

DOI:https://doi.org/10.1103/PhysRevB.46.3084· OSTI ID:7202273

Ansaldo, E J ^[1]; Niedermayer, C; Glueckler, H ^[2]; Stronach, C E ^[3]; Riseman, T M ^[4]; Noakes, D R ^[5]; Obradors, X; Fuertes, A; Navarro, J M; Gomez, P; Casan, N; Martinez, B; Perez, F ^[6]; Rodriguez-Carvajal, J ^[7]; Cary, R S ^[3]; Chow, K ^[8]

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1. University of Saskatchewan, Saskatoon, S7N0W0 (Canada)
2. TRIUMF, The University of British Columbia, Vancouver, British Columbia, V6T2A3 (Canada) Universitaet Konstanz, Konstanz (Germany)
3. Virginia State University, Petersburg, Virginia 23803 (United States)
4. TRIUMF, The University of British Columbia, Vancouver, British Columbia, V6T2A3 (Canada)
5. Brandon University, Brandon, Manitoba, Canada R7A6A9 and Virginia State University, Petersburg, Virginia 23803 (United States)
6. Institut de Ciencia de Materials, Consejo Superior de Investigaciones Cientificas, 08028 Barcelona (Spain)
7. Institut Laue-Langevin, 156 X, 38042 Grenoble (France)
8. TRIUMF, The University of British Columbia, V

Measurements of the spin rotation and depolarization of implanted positive muons have revealed that La{sub 2}SrCu{sub 2}O{sub 6+{delta}}, La{sub 2}CaCu{sub 2}O{sub 6+{delta}}, and La{sub 1.9}Y{sub 0.1}CaCu{sub 2}O{sub 6+{delta}}, members of the double-layer perovskite family La{sub 2}{ital M}Cu{sub 2}O{sub 6+{delta}} ({ital M}=Ca,Sr), display magnetic ordering similar to that of La{sub 2{minus}{ital x}}Sr{sub {ital x}}CuO{sub 4{minus}{ital y}} and YBa{sub 2}Cu{sub 3}O{sub {ital x}} Their magnetic order parameters are remarkably close to those of the other layered cuprates. A superconducting minority phase has been detected in La{sub 2}CaCu{sub 2}O{sub 6+{delta}} ({delta}{ge}0.02), with onset at {similar to}45 K and accompanied by a change in the muon-spin-precession signals from the majority antiferromagnetic phase, phenomena absent in La{sub 2}SrCu{sub 2}O{sub 6+{delta}}. This behavior was attributed to mobility and local clustering of intercalated oxygen excess in the layer between the CuO{sub 2} planes.

• DOE Contract Number: FG05-88ER45353
• OSTI ID: 7202273
• Journal Information: Physical Review, B: Condensed Matter; (United States), Journal Name: Physical Review, B: Condensed Matter; (United States) Vol. 46:5; ISSN PRBMD; ISSN 0163-1829
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360204* -- Ceramics
Cermets
& Refractories-- Physical Properties
360207 -- Ceramics
Cermets
& Refractories-- Superconducting Properties-- (1992-)
ALKALINE EARTH METAL COMPOUNDS
CALCIUM COMPOUNDS
CALCIUM OXIDES
CHALCOGENIDES
COPPER COMPOUNDS
COPPER OXIDES
ELEMENTARY PARTICLES
FERMIONS
HIGH-TC SUPERCONDUCTORS
LANTHANUM COMPOUNDS
LANTHANUM OXIDES
LEPTONS
MAGNETIC MOMENTS
MUONS
ORDER PARAMETERS
OXIDES
OXYGEN COMPOUNDS
PEROVSKITES
RARE EARTH COMPOUNDS
STRONTIUM COMPOUNDS
STRONTIUM OXIDES
SUPERCONDUCTORS
TRANSITION ELEMENT COMPOUNDS