Strain induced enhancement of magnetization in Ba{sub 2}FeMoO{sub 6} based heterostructure with (Ba{sub x}Sr{sub 1-x})TiO{sub 3}

Journal Article · Sat May 14 00:00:00 EDT 2016 · Journal of Applied Physics

DOI:https://doi.org/10.1063/1.4948674· OSTI ID:22596974

Kim, Kyeong-Won; Norton, David P. ^[1]; Ghosh, Siddhartha; Buvaev, Sanal; Hebard, Arthur F. ^[2]

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1. Department of Materials Science and Engineering, University of Florida, Gainesville, Florida 32611 (United States)
2. Department of Physics, University of Florida, Gainesville, Florida 32611 (United States)

High quality epitaxial Ba{sub 2}FeMoO{sub 6} thin films and Ba{sub 2}FeMoO{sub 6}–(Ba{sub x}Sr{sub 1−x})TiO{sub 3} bi-layer (BL) and superlattice (SL) structures were grown via pulsed laser deposition under low oxygen pressure, and their structural, magnetic, and magneto-transport properties were examined. Superlattice and bi-layer structures were confirmed by X-ray diffraction patterns. Low temperature magnetic measurement shows that the saturation magnetization (M{sub S}) is significantly higher for SLs and almost similar or lower for BLs, when compared to phase pure Ba{sub 2}FeMoO{sub 6} thin films. The variation of the coercive field (H{sub C}) follows exact opposite trend, where BL samples have higher H{sub C} and SL samples have lower H{sub C} than pure Ba{sub 2}FeMoO{sub 6} thin films. Also, a significant decrease of the Curie temperature is found in both BL and SL structures compared to pure Ba{sub 2}FeMoO{sub 6} thin films. Negative magneto-resistance is seen in all the BL and SL structures as well as in pure Ba{sub 2}FeMoO{sub 6} thin films. In contrast to the magnetic properties, the magneto-transport properties do not show much variation with induced strain.

• OSTI ID: 22596974
• Journal Information: Journal of Applied Physics, Vol. 119, Issue 18; Other Information: (c) 2016 Author(s); Country of input: International Atomic Energy Agency (IAEA); ISSN 0021-8979
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
BARIUM COMPOUNDS
COMPARATIVE EVALUATIONS
CURIE POINT
ENERGY BEAM DEPOSITION
EPITAXY
LASER RADIATION
LAYERS
MAGNETIC PROPERTIES
MAGNETIZATION
MAGNETORESISTANCE
PULSED IRRADIATION
SUPERLATTICES
TEMPERATURE RANGE 0065-0273 K
THIN FILMS
TITANATES
TITANIUM OXIDES
X RADIATION
X-RAY DIFFRACTION