Weak ferromagnetic ordering in Ca doped polycrystalline BiFeO{sub 3}

Journal Article · Sun Jan 15 04:00:00 EST 2012 · Journal of Applied Physics

DOI:https://doi.org/10.1063/1.3678449· OSTI ID:22036802

Ramachandran, B; Ramachandra Rao, M S ^[1]; Dixit, A; Naik, R; Lawes, G ^[2]

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1. Department of Physics, Nano Functional Materials Technology Centre and Materials Science Research Centre, Indian Institute of Technology Madras, Chennai, 600036, Tamil Nadu (India)
2. Department of Physics and Astronomy, Wayne State University, Detroit, Michigan, 48201 (United States)

Structural and magnetic properties of polycrystalline BiFeO{sub 3}, Bi{sub 0.9}Ca{sub 0.1}FeO{sub 2.95}, Bi{sub 0.9}Ba{sub 0.05}Ca{sub 0.05}FeO{sub 2.95}, and Bi{sub 0.9}Ba{sub 0.1}FeO{sub 2.95} ceramic samples were studied to establish the effects of doping in BiFeO{sub 3} on the magnetic property. X-ray diffraction data of the undoped and doped BiFeO{sub 3} samples were refined to a rhombohedral structure with space group R3c. X-ray photoelectron spectroscopy study showed the formation of a single-phase in both the undoped and doped BiFeO{sub 3} ceramics with Fe in the 3+ valence state. Ca doped and Ba-Ca co-doped BiFeO{sub 3} ceramic samples show weak ferromagnetic ordering at room temperature. This observation makes Ca doped and Ba-Ca co-doped BiFeO{sub 3} samples an interesting material system for magnetoelectric coupling studies.

• OSTI ID: 22036802
• Journal Information: Journal of Applied Physics, Journal Name: Journal of Applied Physics Journal Issue: 2 Vol. 111; ISSN JAPIAU; ISSN 0021-8979
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
BARIUM COMPOUNDS
BISMUTH COMPOUNDS
CALCIUM COMPOUNDS
CERAMICS
COUPLING
DOPED MATERIALS
ELECTRICAL PROPERTIES
FERRITES
FERROMAGNETIC MATERIALS
MAGNETIC PROPERTIES
MAGNETIZATION
POLYCRYSTALS
TEMPERATURE RANGE 0273-0400 K
TRIGONAL LATTICES
VALENCE
X-RAY DIFFRACTION
X-RAY PHOTOELECTRON SPECTROSCOPY