Effect of Sintering Temperature on Structural and Electrical Transport Properties of (La_0.7Ca_0.3MnO₃)_0.97/(ZnO)_0.03 Composite

Abstract:

The composites of (La_0.7Ca_0.3MnO₃)_0.97/(ZnO)_0.03 were fabricated with having different sintering temperature by conventional solid state reaction methods, and their magnetoresistance (MR) properties and electrical transport were investigated. The result of scanning electronic microscopy (SEM) and X-ray diffraction (XRD) indicated that no new phase appeared in the composites except LCMO and ZnO phases. specially, SEM results show that with increment of sintering temperature, the grain size of La_0.7Ca_0.3MnO₃ also increases, which plays a key on electrical and magnetic properties of the (La_0.7Ca_0.3MnO₃)_0.97/(ZnO)_0.03 composites. The electrical transport and magnetic was measured over a temperature range of 90 320K. tables etc. (2012H1B8A2026212), (NIPA-2013-H0301-13-2009)

• Periodical: Applied Mechanics and Materials (Volume 378)
• Pages: 202-208
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.378.202
• Online since: August 2013
• Authors: Ho Je Cho, Seung Rok Lee, M.S. Anwar, Hang Joo Ko, Bon Heun Koo
• Keywords: (La_0.7Ca_0.3MnO₃)_0.97/(ZnO)_0.03 Composites, Curie Temperature (Tc), Grain Size, Magneto Resistance (MR), Sintering Temperature

References

[1] W. Han, J. D. Lee and K. H. Kim, H. Song, W. J. Kim and S. J. Kwon, H. G. Lee and C. Hwang, J. I. Jeong, J. -S. Kang, J. Kor. Phys. Soc. 40, 501 (2002).

[2] Y. P. Lee, J. S. Park, C. O. Kim and V. G. Prokhorov, J. Kor. Phys. Soc. 46, S1 (2005).

[3] V. G. Prokhorov, V. A. Komashko, V. L. Svetchniko, K. K. Yu, S. Y. Park, J. S. Park, Y. P. Lee and J. -H. Kang, J. Kor. Phys. Soc. 48, 1417 (2006).

[4] M.S. Anwar, S. Kumar, N. Arshi, F. Ahmed, G.W. Kim, C.G. Lee, B.H. Koo, J. Magnetics 16, 457 (2011).

[5] M.S. Anwar, S. Kumar, F. Ahmed, Si Nae Heo, G.W. Kim, B.H. Koo, J. Electroceramics, DOI 10. 1007/s10832-012-9711-x.

[6] G.V. Brown, J. Appl. Phys. 47, 3673 (1976).

[7] M. Foldeaki, R. Chachine, T.K. Bose, J. Appl. Phys. 77, 3528 (1995).

[8] V.K. Pecharsky, K.A. Gschneidner Jr., J. Magn. Magn. Mater. 167, L179 (1997).

[9] V.K. Pecharsky, K.A. Gschneidner Jr., Phys. Rev. Lett. 78, 4494 (1997).

[10] E. Yuzuaka, B. Emrea, A. Yucelb, Y. Elerman, J. Alloys Compd. 476, 929 (2009).

[11] A. Biswas, T. Samanta, S. Banerjee, I. Das, Appl. Phys. Lett. 92, 212502 (2008).

[12] H. Li, M. Feng, N. Li, M. Liu, X. Guo, J. Electroceramic 28, 10 (2012).

[13] H.Y. Hwang, S.W. Cheong, N.P. Ong, B. Batlogg, Phys. Rev. Lett. 77, 2041 (1996).

[14] C. Zener, Phys. Rev. 2, 403 (1951).

[15] J.M.D. Coey, M. Viret, S. von Molnar, Adv. Phys. 48, 167 (1999).

[16] H.Y. Hwang, S.W. Cheong, N.P. Ong, B. Batlogg, Phys. Rev. Lett. 77, 2041 (1996).

[17] LI. Balcells, A.E. Carrillo, B. Martinez, J. Fontcuberta, Appl. Phys. Lett. 74, 4014 (1999).

[18] D.K. Petrov, L. Krusin-Elbaum, J.Z. Sun, C. Feild, P.R. Duncombe, Appl. Phys. Lett. 75, 995 (1999).

DOI: 10.1063/1.124577

[19] Z.C. Xia, S.L. Yuan, L.J. Zhang, et al., Solid State Commun. 125, 571 (2003).

[20] L. Balcells, A.E. Carrillo, B. Martnez, J. Fontcuberta, Appl. Phys. Lett. 74, 4014 (1999).

[21] D. Das, A. Saha, S.E. Russek, R. Raj, D. Bahadur, J. Appl. Phys. 93, 8301 (2003).

[22] L.E. Hueso, J. Rivas, J. Appl. Phys. 89, 3 (2001).

[23] Y.H. Xiong, L.J. Li, W.H. Huang, H.L. Pi, J. Zhang, Z.M. Ren, C.L. Sun, Q.P. Huang, X.C. Bao, and C.S. Xiong, Journal of Alloys and Compounds, 469, 552 (2009).

DOI: 10.1016/j.jallcom.2008.02.009

[24] G. Venkataiah, D.C. Krishna, M. Vithal, S.S. Rao, S.V. Bhat, V. Prasad, S.V. Subramanyam, and P. Venugopal Reddy, Physica B, 357, 370 (2009).

DOI: 10.1016/j.physb.2004.12.001

[25] J.H. Miao, S.L. Yuan, G.M. Ren, X. Xiao, G.Q. Yu, Y.Q. Wang and S.Y. Yin, Journal of Alloys and Compounds, 448, 27 (2009).

[26] A. Dutta, N. Gayathri, R. Ranganathan, Phy. Rev. B. 68 (2003).

[27] S.L. Yuan, M.H. Liu, Z.Y. Li, G. Peng, Z.C. Xia, Y.P. Yang, F. Tu, G.Q. Zhang, J. Liu, L. Liu, J. Tang, G.H. Zhang, W. Feng, C.S. Xiong, Y.H. Xiong. Solid State Commun. 121, 291 (2002).

DOI: 10.1016/s0038-1098(01)00522-1