The multiferroic properties of polycrystalline Bi{sub 1−x}Y{sub x}FeO{sub 3} films

Journal Article · Wed May 07 00:00:00 EDT 2014 · Journal of Applied Physics

DOI:https://doi.org/10.1063/1.4863261· OSTI ID:22273876

Sheng, Yan ^[1]; Rui, Wenbin; Du, Jun ^[2]; Qiu, Xiangbiao ^[3]; Zhou, Shengqiang ^[4]; Xu, Qingyu ^[1]

---

1. Department of Physics, Southeast University, Nanjing 211189, China and Key Laboratory of MEMS of the Ministry of Education, Southeast University, Nanjing 210096 (China)
2. National Laboratory of Solid State Microstructures and Department of Physics, Nanjing University, Nanjing 210093 (China)
3. Department of Materials Science and Engineering, Nanjing University, Nanjing 210008 (China)
4. Institute of Ion Beam Physics and Materials Research, Helmholtz-Zentrum Dresden-Rossendorf, P.O. Box 510119, Dresden 01314 (Germany)

Polycrystalline Bi{sub 1−x}Y{sub x}FeO{sub 3} films with varying x from 0 to 0.30 were prepared by pulsed laser deposition on surface oxidized Si (100) substrates with LaNiO{sub 3} as buffer layer. The influence of Y doping on the structure, ferroelectric properties, and exchange bias have been systematically investigated. X-ray diffraction and Raman spectroscopy studies revealed the structural transition from rhombohedral R3c to orthorhombic Pn2{sub 1}a with increasing x above 0.10. The leakage current density of BiFeO{sub 3} has been effectively suppressed by Y doping, and well saturated P–E loops have been observed in Bi{sub 1−x}Y{sub x}FeO{sub 3} (0.01 ≤ x ≤ 0.07). Exchange bias field with a 3.6 nm thick NiFe layer increases with increasing x to 0.01, then decreases with further increasing x.

• OSTI ID: 22273876
• Journal Information: Journal of Applied Physics, Vol. 115, Issue 17; Conference: 55. annual conference on magnetism and magnetic materials, Atlanta, GA (United States), 14-18 Nov 2010; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0021-8979
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
BISMUTH COMPOUNDS
CONCENTRATION RATIO
ENERGY BEAM DEPOSITION
FERRITES
FERROELECTRIC MATERIALS
LANTHANUM COMPOUNDS
LASER RADIATION
LAYERS
LEAKAGE CURRENT
NICKELATES
ORTHORHOMBIC LATTICES
POLYCRYSTALS
PULSED IRRADIATION
RAMAN SPECTROSCOPY
SUBSTRATES
SURFACES
THIN FILMS
TRIGONAL LATTICES
X-RAY DIFFRACTION
YTTRIUM COMPOUNDS