[1] Ramesh R, Spaldin NA. Multiferroics: progress and prospects in thin films[J]. Nature Materials 2007;6: 2129.
[2] Singh SK, Shanthy S, Ishiwara H. Reduced leakage current in BiFeO3–BiCrO3 nanocomposite films formed by chemical solution deposition[J]. J Appl Phys 2010;108: 054102.
[3] Eerenstein W, Mathur ND, Scott JF. Multiferroic and magnetoelectric materials.[J]. Natural 2006;442: 759765.
[4] Boyle TJ, Buchheit CD, Rodriguez MA, Al-Shareef HN, Hernandez BA. Formation of SrBi2Ta2O9: Part I, Synthesis and Characterization of a Novel SolGel Solution for Production of Ferroelectric SrBi2Ta2O9 Thin Films[J]. J Mater Res 1996;11: 22742281.
[5] Kim JK, Kim SS, Kim WJ. SolGel Synthesis and Properties of. Multiferroic BiFeO3[J]. Mater Lett 2005;59: 40064009.
[6] Singh SK, Funakuba H, Uchida H, Ishiwara H. Structural and electrical properties of BiFeO3 thin films[J]. Integrated Ferroelectrics 2005;76: 139146.
[7] Huang FZ, Lu XM, Lin WW, et al. Thickness-dependent structural and magnetic properties of BiFeO films prepared by metal organic decomposition method[J]. Appl Phys Lett 2010;97: 222901.
[8] Yuan GL, Or SW, Liu JM, et al. Structural transformation and ferroelectromagnetic behavior in single-phase BiNdFeO multiferroic ceramics[J]. Appl Phys Lett 2006;89: 052905.
[9] Rout D, Moon KS, Kang SJL. Temperature-dependent Raman scattering studies of polycrystalline BiFeO3 bulk ceramics[J]. J Raman Spectrosc 2009;40: 618626.
[10] Ramirez MO, Krishnamurthi M, Denev S, et al. Magnon sidebands and spin-charge coupling in bismuth ferrite probed by nonlinear optical spectroscopy[J]. Appl Phys Lett 2008;92: 022511.
[11] Fukumura H, Harima H, Kisoda K, et al. Raman and infrared spectra of multiferroic bismuth ferrite from first principles[J]. J Magn Magn Mater 2007;310: e3679.
[12] Singh MK, Jang HM, Ryu S, et al. Polarized Raman scattering of multiferroic BiFeO epitaxial films with rhombohedral R3c symmetry[J]. Appl Phys Lett 2006;88: 042907.
[13] Cazayous M, Malka D. Electric field effect on BiFeO3 single crystal investigated by Raman spectroscopy[J]. Appl Phys Lett 2007;91: 071910.
[14] Kothari D, Reddy VR, Sathe VG, et al. Raman scattering study of polycrystalline magnetoelectric BiFeO3[J]. J Magn Magn Mater 2008;320: 548552.
[15] Hermet P, Goffinet M, Kreisel J, Raman and infrared spectra of multiferroic bismuth ferrite from first principles[J]. Phys Rev B 2007;75: 220102.