Structural, electrical, magnetic and magnetoelectric properties of Co-doped BaTiO3 multiferroic ceramics
作者： Alka Rani , Jayant Kolte , Prakash Gopalan
DOI: 10.1016/J.CERAMINT.2018.06.098
关键词: Ferromagnetism 、 Ferroelectricity 、 Analytical chemistry 、 Rietveld refinement 、 Magnetic hysteresis 、 Magnetization 、 Materials science 、 Paramagnetism 、 Hexagonal phase 、 Tetragonal crystal system
摘要: Abstract In this work, BaTi1-xCoxO3 (BTCO) ceramics with x = 0, 2.5, 5, 7.5 and 10 mol% have been synthesized their structural, electrical, magnetic magnetoelectric investigated. Rietveld refinement of XRD data reveals that pure BTO has tetragonal phase. On the other hand, between 2.5 ≤ x ≤ 7.5, BTCO shows both as well hexagonal phases. At x = 10 mol%, only The grain size samples is found to increase Co doping concentration. ferroelectric polarization relative permittivity reduce an in A standard magnetization equation used for fitting hysteresis (M-H) curve, thus deconvoluting ferromagnetic (FM) paramagnetic (PM) components. saturation (Ms) gradually increases from x = 2.5 value being 0.8 memu/g 8.92 respectively. origin due oxygen vacancies associated exchange interaction. magnetodielectric coefficient (MD) a reducing trend 1.80 0.18 x = 10 mol% ( α ME ) x = 2.5 mol% 3.399 mV/cm. Oe, while x = 10 mol% it 0.896 mV/cm. Oe.
sci-hub.se 参考文章(60)
L. Padilla-Campos, D.E. Diaz-Droguett, R. Lavín, S. Fuentes, Synthesis and structural analysis of Co-doped BaTiO3 Journal of Molecular Structure. ,vol. 1099, pp. 502- 509 ,(2015) , 10.1016/J.MOLSTRUC.2015.07.012
Alka Rani, Jayant Kolte, Prakash Gopalan, Phase formation, microstructure, electrical and magnetic properties of Mn substituted barium titanate Ceramics International. ,vol. 41, pp. 14057- 14063 ,(2015) , 10.1016/J.CERAMINT.2015.07.023
Yuanyuan Li, Qinghua Liu, Tao Yao, Zhiyun Pan, Zhihu Sun, Yong Jiang, Hong Zhang, Zijia Pan, Wensheng Yan, Shiqiang Wei, Hexagonal BaTi1−xCoxO3 phase stabilized by Co dopants Applied Physics Letters. ,vol. 96, pp. 091905- ,(2010) , 10.1063/1.3337110
V. R. Palkar, Darshan C. Kundaliya, S. K. Malik, S. Bhattacharya, Magnetoelectricity at room temperature in the Bi 0.9 − x Tb x La 0.1 FeO 3 system Physical Review B. ,vol. 69, pp. 212102- ,(2004) , 10.1103/PHYSREVB.69.212102
W. H. Tuan, S. S. Chen, Processing and Properties of BaTiO3-Ni Ferroelectric-Ferromagnetic Composites Ferroelectrics. ,vol. 381, pp. 167- 175 ,(2009) , 10.1080/00150190902876090
M. Mahesh Kumar, A. Srinivas, S. V. Suryanarayana, Structure property relations in BiFeO3/BaTiO3 solid solutions Journal of Applied Physics. ,vol. 87, pp. 855- 862 ,(2000) , 10.1063/1.371953
Hyun-Suk Kim, Lei Bi, G. F. Dionne, C. A. Ross, Magnetic and magneto-optical properties of Fe-doped SrTiO3 films Applied Physics Letters. ,vol. 93, pp. 092506- ,(2008) , 10.1063/1.2977963
V V Lazenka, G Zhang, J Vanacken, I I Makoed, A F Ravinski, V V Moshchalkov, Structural transformation and magnetoelectric behaviour in Bi1?xGdxFeO3 multiferroics Journal of Physics D. ,vol. 45, pp. 125002- ,(2012) , 10.1088/0022-3727/45/12/125002
Jayant Kolte, Paresh H. Salame, A. S. Daryapurkar, P. Gopalan, Impedance and AC conductivity study of nano crystalline, fine grained multiferroic bismuth ferrite (BiFeO3), synthesized by microwave sintering AIP Advances. ,vol. 5, pp. 097164- ,(2015) , 10.1063/1.4931818
N.V. Dang, N.T. Dung, P.T. Phong, In-Ja Lee, Effect of Fe3+ substitution on structural, optical and magnetic properties of barium titanate ceramics Physica B-condensed Matter. ,vol. 457, pp. 103- 107 ,(2015) , 10.1016/J.PHYSB.2014.09.046