Charge and magnetic order in La{sub 0.5}Sr{sub 1.5}MnO{sub 4}

Journal Article · Fri Mar 01 00:00:00 EST 1996 · Physical Review Letters

DOI:https://doi.org/10.1103/PhysRevLett.76.2169· OSTI ID:284445

Sternlieb, B J; Hill, J P; Wildgruber, U C ^[1]; Luke, G M; Nachumi, B ^[2]; Moritomo, Y; Tokura, Y ^[3]

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1. Physics Department, Brookhaven National Laboratory, Upton, New York 11973 (United States)
2. Department of Physics, Columbia University, 538 W. 120th Street, New York, New York 10027 (United States)
3. Joint Research Center for Atom Technology, Tsukuba, Ibaraki 305 (Japan)

Elastic neutron scattering measurements characterizing the charge and magnetic order in La{sub 0.5}Sr{sub 1.5}MnO{sub 4} are presented. Superlattice reflections corresponding to an alternating Mn{sup +3}/Mn{sup +4} pattern with wave vector {ital q}{sub co}=(1/2,1/2,0) are observed below the charge ordering temperature, {ital T}{sub co}{approx_equal}217 K. Below the N{acute e}el temperature, {ital T}{sub {ital N}}{approx_equal}110 K, the magnetic moments associated with these ions form an ordered structure with dimensions 2{radical}2{ital a}{times}2{radical}2{ital a}{times}2{ital c} relative to the underlying chemical cell. {copyright} {ital 1996 The American Physical Society.}

• Research Organization: Brookhaven National Lab. (BNL), Upton, NY (United States)
• DOE Contract Number: AC02-76CH00016
• OSTI ID: 284445
• Journal Information: Physical Review Letters, Vol. 76, Issue 12; Other Information: PBD: Mar 1996
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
LANTHANUM OXIDES
NEUTRON DIFFRACTION
STRONTIUM OXIDES
MANGANESE OXIDES
MONOCRYSTALS
MAGNETISM
NEEL TEMPERATURE
ORDER-DISORDER TRANSFORMATIONS
MICROSTRUCTURE