Abstract
Soft/hard xNiFe2O4@(1−x)SrCo0.2Fe11.8O19 (x = 0.00, 0.15, 0.30, and 0.45) core/shell magnetic composites have been synthesized by the ball-milling-assisted ceramic process. The analysis of XRD indicates the coexistence of NiFe2O4 and SrCo0.2Fe11.8O19. The core/shell structure of the composite sample has been confirmed by Fourier transform infrared spectra. When xNiFe2O4@(1−x)SrCo0.2Fe11.8O19 precursor is calcined at 900 °C, the crystallite size of obtained core/shell composites is between 28.3 and 46.6 nm in core NiFe2O4 and between 59.2 and 74.5 nm in shell SrCo0.2Fe11.8O19. Magnetic characterization indicates that specific saturation magnetization of xNiFe2O4@(1−x)SrCo0.2Fe11.8O19 composites increases with the increase in calcination temperature, and decreases with the increase in mass ratio of soft to hard magnetic phase. Compared with bare SrCo0.2Fe11.8O19 calcined at 950 °C, the specific saturation magnetization of xNiFe2O4@(1−x)SrCo0.2Fe11.8O19 composites is decreased and coercivity is increased. This is attributed to the exchange–coupling interaction between the hard and soft phases due to formation of core/shell structure. Besides, remanence and magnetic moment of xNiFe2O4@(1−x)SrCo0.2Fe11.8O19 composites decrease with the increase in NiFe2O4 content. The xNiFe2O4@(1−x)SrCo0.2Fe11.8O19 composites have higher squareness (Mr/Ms) value compared with the bare SrCo0.2Fe11.8O19, which is useful for high-density magnetic recording and enhanced memory storage.
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T.Y. Hwang, J. Lee, H.R. Lim, S.J. Jeong, G.H. An, J. Kim, Y.H. Choa, Ceram. Int. 43, 3879–3884 (2017)
F. Rhein, R. Karmazin, M. Krispin, T. Reimann, O. Gutfleisch, J. Alloy. Compd. 690, 979–985 (2017)
R.K. Mudsainiyan, S.K. Chawla, S.S. Meena, N. Sharma, R. Singh, A. Das, Ceram. Int. 40, 16617–16626 (2014)
R.K. Mudsainiyan, A.K. Jassal, M. Gupta, S.K. Chawla, J. Alloy. Compd. 645, 421–428 (2015)
M. Cernea, S.G. Sandu, C. Galassi, R. Radu, V. Kuncser, J. Alloy. Compd. 561, 121–128 (2013)
R.C. Pullar, Prog. Mater Sci. 57, 1191–1334 (2012)
S. Bierlich, F. Gellersenb, A. Jacob, J. Töpfer, Mater. Res. Bull. 86, 19–23 (2017)
G. Qiang, Y. Jin, X.W. Lu, X.P. Cui, D.M. Deng, B.J. Kang, W.G. Yang, S.X. Cao, J.C. Zhang, Appl. Phys. A 122, 681 (2016)
A. Bahadur, A. Saeed, S. Iqbal, M. Shoaib, I. Ahmad, M.S. Rahman, M.I. Bashir, M. Yaseen, W. Hussain, Ceram. Int. 43, 7346–7350 (2017)
C.C. Liu, X.S. Liu, S.J. Feng, K.M.U. Rehman, M.L. Li, C. Zhang, H.H. Li, X.Y. Meng, J. Magn. Magn. Mater. 445, 1–5 (2018)
Y.J. Yang, F.H. Wang, J.X. Shao, K.M. Batoo, K.M.U. Rehman, D.H. Huang, Chin. J. Phys. 56, 108–116 (2018)
A.K. Jassal, R.K. Mudsainiyan, S.K. Chawla, S.B. Anu, K. Narang, Pubby, J. Magn. Magn. Mater. 447, 32–41 (2018)
M. Mahdiani, A. Sobhani, M. Salavati-Niasari, Sep. Purif. Technol. 185, 140–148 (2017)
J.F. Wang, C.B. Ponton, I.R. Harris, IEEE Trans. Magn. 38, 2928–2930 (2002)
W. Chen, W.W. Wu, C. Zhou, S.F. Zhou, M.Y. Li, Y. Ning, J. Electron. Mater. 47, 2110–2119 (2018)
R. Xiong, W.W. Li, C.L. Fei, Y. Liu, J. Shi, Ceram. Int. 42, 11913–11917 (2016)
X.G. Huang, J. Zhang, Z.H. Liu, T.Y. Sang, B. Song, H.L. Zhu, C.P. Wong, J. Alloy. Compd. 648, 1072–1075 (2015)
D. Roy, P.S.A. Kumara, J. Appl. Phys. 106, 073902 (2009)
S.E. Jacobo, L. Civale, M.A. Blesa, J. Magn. Magn. Mater. 260, 37–41 (2000)
Y.H. Liu, S.G.E. te Velthuis, J.S. Jiang, Y. Choi, S.D. Bader, A.A. Parizzi, H. Ambaye, V. Lauter, Phys. Rev. B 83, 174418 (2011)
Y.F. Lu, W.D. Song, Appl. Phys. Lett. 76, 490 (2000)
M. Liu, H.B. Yang, Y. Lin, Y.Y. Yang, J. Alloy. Compd. 631, 335–339 (2015)
M. Rajasekhar, M. Ram, D. Akhtar, J. Magn. Magn. Mater. 341, 108–111 (2013)
V.M. Uzdin, A. Vega, A. Khrenov, Phys. Rev. B 85, 024409 (2012)
W. Chen, W.W. Wu, M.M. Mao, C. Zhou, S.F. Zhou, M.Y. Li, Q. Wang, J. Supercond. Novel Magn. 30, 707–714 (2017)
X.H. Wu, W. Chen, W.W. Wu, Y. Ning, S.S. Chen, J. Mater. Sci. Mater. Electron. 28, 18815–18824 (2017)
J. Dong, Y. Zhang, X.L. Zhang, Q.F. Liu, J.B. Wang, Mater. Lett. 120, 9–12 (2014)
H.B. Yang, T. Ye, Y. Lin, M. Liu, P. Kang, G. Zhang, Mater. Chem. Phys. 171, 27–32 (2016)
L.Y. Zhang, Z.W. Li, J. Alloy. Compd. 469, 422–426 (2009)
A.L. Xia, S.Z. Ren, C.H. Zuo, L.J. Zhang, M.F. Xie, Y. Deng, R.N. Wu, W. Xu, C.G. Jin, X.G. Liu, RSC Adv. 4, 18885–18888 (2014)
W.J. Feng, H.L. Liu, P.F. Hui, H. Yang, J. Li, J.S. Wang, Integr. Ferroelectr. 152, 120–126 (2014)
M.A. Radmanesh, S.A. Seyyed Ebrahimi, J. Magn. Magn. Mater. 324, 3094–3098 (2012)
S. Esir, Y. Junejo, A. Baykal, M. Toprak, H. Sözeri, J. Inorg. Organomet. Polym. 24, 722–728 (2014)
K.W. Zhou, W. Chen, X.H. Wu, W.W. Wu, C.W. Lin, J. Wu, J. Electron. Mater. 46, 4618–4626 (2017)
X.H. Wu, W. Chen, W.W. Wu, J. Wu, Q. Wang, J. Magn. Magn. Mater. 453, 246–253 (2018)
W. Chen, D.S. Liu, W.W. Wu, H.X. Zhang, J. Wu, J. Magn. Magn. Mater. 422, 49–56 (2017)
W. Chen, W.W. Wu, M.Y. Li, C. Zhou, S.F. Zhou, J. Mater. Sci. Mater. Electron. 29, 8020–8030 (2018)
G. Umapathy, G. Senguttuvan, L.J. Berchmans, Int. J. ChemTech Res. 7, 131–137 (2015)
A.A. Sattar, H.M. El-Sayed, I. Alsuqia, J. Magn. Magn. Mater. 395, 89–96 (2015)
X.S. Liu, L. Fernandez-Garcia, F. Hu, D.R. Zhu, M. Suárez, J.L. Menéndez, Mater. Chem. Phys. 133, 961–964 (2012)
L. Sun, R. Zhang, Z.D. Wang, L. Ju, E.S. Cao, Y.J. Zhang, J. Magn. Magn. Mater. 421, 65–70 (2017)
T. Lazarova, M. Georgieva, D. Tzankov, D. Voykova, L. Aleksandrov, Z. Cherkezova-Zheleva, D. Kovacheva, J. Alloy. Compd. 700, 272–283 (2017)
C.B. Rong, H.W. Zhang, R.J. Chen, S.L. He, B.G. Shen, J. Magn. Magn. Mater. 302, 126–136 (2006)
K. Rana, P. Thakur, A. Thakur, M. Tomar, V. Gupta, J.L. Mattei, P. Queffelec, Ceram. Int. 42, 8413–8418 (2016)
Acknowledgements
This study was financially supported by the Guangxi Natural Science Foundation of China (Grant No. 2017GXNSFAA198338), Open Foundation of Guangxi Key Laboratory of Processing for Non-ferrous Metals and Featured Materials, Guangxi University (Grant No. GXYSOF1807) and the Guangxi University Student Innovation Foundation of China (Grant No. 201710593034).
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Xia, J., Ning, Y., Luo, Y. et al. Structural and magnetic properties of soft/hard NiFe2O4@SrCo0.2Fe11.8O19 core/shell composite prepared by the ball-milling-assisted ceramic process. J Mater Sci: Mater Electron 29, 13903–13913 (2018). https://doi.org/10.1007/s10854-018-9523-0
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DOI: https://doi.org/10.1007/s10854-018-9523-0