Bulk synthesis and high-temperature ferromagnetism of (In{sub 1-x}Fe{sub x}){sub 2}O{sub 3-{sigma}} with Cu co-doping

Journal Article · Mon Jan 24 00:00:00 EST 2005 · Applied Physics Letters

DOI:https://doi.org/10.1063/1.1854720· OSTI ID:20636970

Yoo, Young K; Qizhen, Xue; Lee, Hyung-Chul; Shifan, Cheng; Xiang, X -D; Dionne, Gerald F; Shifa, Xu; Jun, He; Chu, Yong S; Preite, S D; Lofland, Samuel E; Takeuchi, Ichiro ^[1]

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1. Intematix Corporation, 351 Rheem Boulevard, Moraga, California 94556 (United States)

The synthesis and magnetic properties of (In{sub 1-x}Fe{sub x}){sub 2}O{sub 3-{sigma}} bulk ceramics with Cu co-doping are reported. Magnetic Fe ions are found to have high thermodynamic solubility (up to 20%) in the In{sub 2}O{sub 3} host compound. The lattice constant decreases almost linearly as Fe doping concentration increases indicating the incorporation of Fe ions into the host lattice. The samples with high Fe concentration annealed under Ar reduced atmosphere were found to be ferromagnetic, and the Curie temperature is around 750 K. The extensive structural and magnetic studies rule out the possibility that the observed magnetism is derived from magnetic impurity phases.

• OSTI ID: 20636970
• Journal Information: Applied Physics Letters, Vol. 86, Issue 4; Other Information: DOI: 10.1063/1.1854720; (c) 2005 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0003-6951
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
ANNEALING
ANTIFERROMAGNETISM
CERAMICS
COPPER
CURIE POINT
FERROMAGNETIC MATERIALS
FERROMAGNETISM
HYSTERESIS
IMPURITIES
INDIUM OXIDES
IRON COMPOUNDS
IRON IONS
LATTICE PARAMETERS
MAGNETIC MOMENTS
MAGNETIC PROPERTIES
MAGNETIC SEMICONDUCTORS
SINTERING
SOLUBILITY
SYNTHESIS
TEMPERATURE RANGE 0400-1000 K