Intrinsic and extrinsic magnetic properties of the naturally layered manganites

Journal Article · Sat Jul 01 00:00:00 EDT 2000 · Journal of Vacuum Science and Technology. A, Vacuum, Surfaces and Films

DOI:https://doi.org/10.1116/1.582333· OSTI ID:20217048

Berger, A ^[1]; Mitchell, J F ^[1]; Miller, D J ^[1]; Jiang, J S ^[1]; Bader, S D ^[1]

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1. Materials Science Division, Argonne National Laboratory, Argonne, Illinois 60439 (United States)

Structural and magnetic properties of the two-layered Ruddlesden-Popper phase SrO(La{sub 1-x}Sr{sub x}MnO{sub 3}){sub 2} with x=0.3-0.5 are highlighted. Intrinsic properties of these naturally layered manganites include a ''colossal'' magnetoresistance, a composition-dependent magnetic anisotropy, and almost no remanence. Above the Curie temperature there is a nonvanishing extrinsic magnetization attributed to intergrowths (stacking faults in the layered structure). These lattice imperfections consist of additional or missing manganite layers, as observed in transmission electron microscopy. Their role in influencing the properties of the host material is highlighted. (c) 2000 American Vacuum Society.

• OSTI ID: 20217048
• Journal Information: Journal of Vacuum Science and Technology. A, Vacuum, Surfaces and Films, Vol. 18, Issue 4; Other Information: PBD: Jul 2000; ISSN 0734-2101
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
LANTHANUM OXIDES
STRONTIUM OXIDES
MANGANESE OXIDES
MAGNETORESISTANCE
MAGNETIZATION
TRANSMISSION ELECTRON MICROSCOPY
FERROMAGNETIC MATERIALS
CRYSTAL STRUCTURE
EXPERIMENTAL DATA