[1] HUR N, PARK S, SHARMA P et al. Electric polarization reversal and memory in a multiferroic material induced by magnetic fields[D]. Nature, 429, 392-395(2004).

[2] FIEBIG M. Revival of the magnetoelectric effect[D]. Journal of Physics D: Applied Physics, 38, R123-R152(2005).

[3] EERENSTEIN W, MATHUR N, SCOTT J F. Multiferroic and magnetoelectric materials[D]. Nature, 442, 759-765(2006).

[4] BIBES M. BARTHÉLÉMY A. Towards a magnetoelectric memory[D]. Nature Materials, 7, 425-426(2008).

[5] DZYALOSHINSKII I. On the magneto-electrical effects in antiferromagnets[D]. Soviet Physics JETP, 10, 628-629(1960).

[6] ASTROV D. The magnetoelectric effect in antiferrom agnetics[D]. Soviet Physics JETP, 11, 708-709(1960).

[7] KHOMSKII D. Classifying multiferroics: mechanisms and effects[D]. Physics, 2, 20(2009).

[8] WANG J, NEATON J, ZHENG H et al. Epitaxial BiFeO₃ multiferroic thin film heterostructures Science[D], 299, 1719-1722(2003).

[9] PETIT S, MOUSSA F, HENNION M et al. Spin phonon coupling in hexagonal multiferroic YMnO₃[D]. Physical Review Letters, 99, 266604(2007).

[10] WILKINS S, FORREST T, BEALE T et al. Nature of the magnetic order and origin of induced ferroelectricity in TbMnO₃[D]. Physical Review Letters, 103, 207602(2009).

[11] KAGAWA F, MOCHIZUKI M, ONOSE Y et al. Dynamics of multiferroic domain wall in spin-cycloidal ferroelectric DyMnO₃[D]. Physical Review Letters, 102, 057604(2009).

[12] KIMURA T. Magnetoelectric hexaferrites[D]. Annual Review of Condensed Matter Physics, 3, 93-110(2012).

[13] DZYALOSHINSKY I. A thermodynamic theory of “weak” ferromagnetism of antiferromagnetics[D]. Journal of Physics and Chemistry of Solids, 4, 241-255(1958).

[14] MORIYA T. Anisotropic superexchange interaction and weak ferromagnetism[D]. Physical Review, 120, 91-98(1960).

[15] KIMURA T, GOTO T, SHINTANI H et al. Magnetic control of ferroelectric polarization[D]. Nature, 426, 55-58(2003).

[16] CHOI Y, OKAMOTO J, HUANG D et al. Thermally or magnetically induced polarization reversal in the multiferroic CoCr₂O₄[D]. Physical Review Letters, 102, 067601(2009).

[17] KIMURA T, LAWES G, RAMIREZ A. Electric polarization rotation in a hexaferrite with long-wavelength magnetic structures[D]. Physical Review Letters, 94, 137201(2005).

[18] ZHAI K, WU Y, SHEN S et al. Giant magnetoelectric effects achieved by tuning spin cone symmetry in Y-type hexaferrites[D]. Nature Communications, 8, 1-8(2017).

[19] KITAGAWA Y, HIRAOKA Y, HONDA T et al. Low-field magnetoelectric effect at room temperature[D]. Nature Materials, 9, 797-802(2010).

[20] PULLAR R. Hexagonal ferrites: a review of the synthesis, properties and applications of hexaferrite ceramics[D]. Progress in Materials Science, 57, 1191-1334(2012).

[21] TOKUNAGA Y, KANEKO Y, OKUYAMA D et al. Multiferroic M-type hexaferrites with a room-temperature conical state and magnetically controllable spin helicity[D]. Physical Review Letters, 105, 257201(2010).

[22] ALESHKO-OZHEVSKII O, SIZOV R, YAMZIN I et al. Helicoidal antiphase spin ordering in hexagonal ferrites of the BaSc_xFe₁₂-_xO₁₉(M) system[D]. Soviet Physics JETP, 28, 425-430(1969).

[23] KAMZIN A, ROZENBAUM V, OL’KHOVIK L. Mössbauer studies of the surface and bulk magnetic structure of scandium- substituted Ba-M-type hexaferrites[D]. Physics of the Solid State, 41, 433-439(1999).

[24] CHUN S, CHAI Y, OH Y et al. Realization of giant magnetoelectricity in helimagnets[D]. Physical Review Letters, 104, 037204(2010).

[25] BRABERS V, STEVENS A, DALDEROP J et al. Magnetization and magnetic anisotropy of BaFe₁₂-_xTi_xO₁₉ hexaferrites[D]. Journal of Magnetism and Magnetic Materials, 196, 312-314(1999).

[26] MARIÑO-CASTELLANOS P, ANGLADA-RIVERA J, CRUZ- FUENTES A et al. Magnetic and microstructural properties of the Ti ⁴+-doped barium hexaferrite[D]. Journal of Magnetism and Magnetic Materials, 280, 214-220(2004).

[27] MARIÑO-CASTELLANOS P, MORENO-BORGES A, OROZCO- MELGAR G et al. Structural and magnetic study of the Ti ⁴+-doped barium hexaferrite ceramic samples: theoretical and experimental results[D]. Physica B: Condensed Matter, 406, 3130-3136(2011).

[28] SHANNON R. Revised effective ionic radii and systematic studies of interatomic distances in halides and chalcogenides[D]. Acta Crystallographica Section A: Crystal Physics, Diffraction, Theoretical and General Crystallography, 32, 751-767(1976).

[29] KREBER E, GONSER U. Determination of cation distribution in Ti ⁴+ and Co ²+ substituted barium ferrite by mössbauer spectroscopy[D]. Applied Physics, 10, 175-180(1976).

[30] KREISEL J, VINCENT H, TASSET F et al. An investigation of the magnetic anisotropy change in BaFe_12-2xTi_xCo_xO₁₉ single crystals[D]. Journal of Magnetism and Magnetic Materials, 224, 17-29(2001).

[31] JONSCHER A[M]. Dielectric Relaxation in Solids.(1983).

[32] KE Q, LOU X, WANG Y et al. Oxygen-vacancy-related relaxation and scaling behaviors of Bi_0.9La_0.1Fe_0.98Mg_0.02O₃ ferroelectric thin films[D]. Physical Review B, 82, 024102(2010).

[33] MACDONALD J. Impedance Spectroscopy[D]. New York: John Wiley(1987).