Neutron-scattering study of static antiferromagnetic correlations in La{sub 2{minus}x}Sr{sub x}Cu{sub 1{minus}y}Zn{sub y}O{sub 4}

Journal Article · Mon Mar 01 04:00:00 EST 1999 · Physical Review, B: Condensed Matter

DOI:https://doi.org/10.1103/PhysRevB.59.6517· OSTI ID:321530

Kimura, H; Hirota, K; Matsushita, H; Yamada, K; Endoh, Y ^[1]; Lee, S; Majkrzak, C F; Erwin, R ^[2]; Shirane, G ^[3]; Greven, M; Lee, Y S; Kastner, M A; Birgeneau, R J ^[4]

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1. Department of Physics, Tohoku University, Aramaki Aoba, Sendai 980-8578 (Japan)
2. National Institute of Standards and Technology, Center for Neutron Research, Gaithersburg, Maryland 20899 (United States)
3. Department of Physics, Brookhaven National Laboratory, Upton, New York 11973-5000 (United States)
4. Department of Physics, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139 (United States)

Neutron-scattering measurements have been performed to search for possible elastic incommensurate magnetic peaks in superconducting La{sub 2{minus}x}Sr{sub x}CuO{sub 4} with x=0.10, 0.12, and 0.15. The most dramatic effects are found for x=0.12; in this case, the peak intensity first appears at the onset of superconductivity T{sub c}(=31 K). The resolution-limited peak width indicates that the static magnetic correlation length exceeds 200 {Angstrom} isotropically in the CuO{sub 2} planes. Weak elastic peaks are also observed at low temperatures for x=0.10 while for x=0.15 any incommensurate elastic scattering is below the limit of detectability. Elastic peaks are observed in Zn-substituted nonsuperconducting La{sub 1.88}Sr{sub 0.12}Cu{sub 0.97}Zn{sub 0.03}0{sub 4}. However, in this case, the Zn substitution degrades the magnetic order; the peak appears at lower temperature (17 K) and the correlation length is shorter (80 {Angstrom}) than that in the Zn-free x=0.12 sample. {copyright} {ital 1999} {ital The American Physical Society}

• OSTI ID: 321530
• Journal Information: Physical Review, B: Condensed Matter, Journal Name: Physical Review, B: Condensed Matter Journal Issue: 9 Vol. 59; ISSN PRBMDO; ISSN 0163-1829
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
ANTIFERROMAGNETIC MATERIALS
ANTIFERROMAGNETISM
COPPER OXIDES
CORRELATIONS
ELASTIC SCATTERING
HIGH-TC SUPERCONDUCTORS
LANTHANUM COMPOUNDS
LANTHANUM OXIDES
MAGNETIC PROPERTIES
NEUTRON DIFFRACTION
STRONTIUM COMPOUNDS
STRONTIUM OXIDES
SUPERCONDUCTIVITY
TEMPERATURE RANGE 0013-0065 K
ZINC OXIDES