Structure and magnetic properties of three-dimensional (La,Sr)MnO{sub 3} nanofilms on ZnO nanorod arrays

Journal Article · Mon Mar 21 00:00:00 EDT 2011 · Applied Physics Letters

DOI:https://doi.org/10.1063/1.3567544· OSTI ID:21518343

Haiyong, Gao; Puxian, Gao; Shimpi, Paresh; Yanbing, Guo; Wenjie, Cai; Huijan, Lin ^[1]; Staruch, M ^[2]; Jain, Menka ^[1]

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1. Institute of Materials Science, University of Connecticut, Storrs, Connecticut 06269-3136 (United States)
2. Department of Physics, University of Connecticut, Storrs, Connecticut 06269-3046 (United States)

Three-dimensional (3D) cubic perovskite (La,Sr)MnO{sub 3} (LSMO) nanofilms have been deposited on ZnO nanorod arrays with controlled dimensionality and crystallinity by radio frequency (rf) magnetron sputtering and post thermal annealing. Compared to the two-dimensional (2D) LSMO nanofilm on flat Si, the structure and magnetic properties of 3D LSMO nanofilms on ZnO nanorod arrays have a strong anisotropic morphology and thickness dependence. Ferromagnetic property has been observed in both 2D and 3D LSMO nanofilms while a ferromagnetic-superparamagnetic transition was revaled in 3D LSMO nanofilms on ZnO nanorod array with decreasing nanofilm thickness, due to a large surface dispersion effect. The LSMO/ZnO nanofilm/nanorod structures could open up new avenues for intriguing magnetic properties studies and applications of nanoscale perovskites.

• OSTI ID: 21518343
• Journal Information: Applied Physics Letters, Vol. 98, Issue 12; Other Information: DOI: 10.1063/1.3567544; (c) 2011 American Institute of Physics; ISSN 0003-6951
• Country of Publication: United States
• Language: English

Related Subjects

77 NANOSCIENCE AND NANOTECHNOLOGY
ANISOTROPY
ANNEALING
CRYSTAL STRUCTURE
DISPERSIONS
LANTHANUM COMPOUNDS
MAGNETIC PROPERTIES
MAGNETRONS
MANGANATES
NANOSTRUCTURES
PARAMAGNETISM
PEROVSKITE
RADIOWAVE RADIATION
SPUTTERING
STRONTIUM COMPOUNDS
SUPERPARAMAGNETISM
SURFACES
THICKNESS
THIN FILMS
TWO-DIMENSIONAL CALCULATIONS
ZINC OXIDES
ALKALINE EARTH METAL COMPOUNDS
CHALCOGENIDES
DIMENSIONS
ELECTROMAGNETIC RADIATION
ELECTRON TUBES
ELECTRONIC EQUIPMENT
EQUIPMENT
FILMS
HEAT TREATMENTS
MAGNETISM
MANGANESE COMPOUNDS
MICROWAVE EQUIPMENT
MICROWAVE TUBES
MINERALS
OXIDE MINERALS
OXIDES
OXYGEN COMPOUNDS
PEROVSKITES
PHYSICAL PROPERTIES
RADIATIONS
RARE EARTH COMPOUNDS
TRANSITION ELEMENT COMPOUNDS
ZINC COMPOUNDS