Abstract
The structural, electric, and magnetic properties of La1−x Na x MnO3 (0.05 ≤ x ≤ 0.35) compounds have been investigated. The compounds were prepared by a standard sol–gel method then sintered at 1400°C for 24 h. The crystal structures were orthorhombic (Pbnm) for all Na concentrations, and the unit cell volumes, determined from the x-ray diffraction data, tended to decrease with increasing Na content. The high-temperature-sintering process resulted in a grainy structure with grain sizes of 5–30 μm. The Curie temperature (T C) increased with increasing Na concentration up to x = 0.20, then decreased with further increase in Na concentration. The maximum magnetic entropy change (−ΔS M) under a field change of 1.6 T was calculated to be ∼3 J/kg K for the sample containing 15% Na.
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References
Z.B. Guo, Y.W. Du, J.S. Zhu, H. Huang, W.P. Ding, and D. Feng, Phys. Rev. Lett. 78, 1142 (1997).
A. Das, M. Sahana, S.M. Yusuf, L. Madhav Rao, C. Shivakumara, and M.S. Hegde, Mater. Res. Bull. 35, 651 (2000).
A. Maignan, S. Hébert, L. Pi, D. Pelloquin, C. Martin, C. Michel, M. Hervieu, and B. Raveau, Cryst. Eng. 5, 362 (2002).
L. Pi, M. Hervieu, A. Maignan, C. Martin, and B. Raveau, Solid State Commun. 126, 229 (2003).
S. Roy, Y.Q. Guo, S. Venkatesh, and N. Ali, J. Phys. Condens. Matter 13, 229 (2001).
P. Ramirez, J. Phys. Condens. Matter 9, 8171 (1997).
M. Battabyal and T.K. Dey, Phys. B Phys. Condens. Matter 367, 40 (2005).
M.H. Phan and S.C. Yu, J. Magn. Magn. Mater. 308, 325 (2007).
Y. Xu, M. Meier, P. Das, M.R. Koblischka, and U. Hartmann, Cryst. Eng. 5, 383 (2002).
G. Tang, Y. Yu, W. Chen, and Y. Cao, Mater. Lett. 62, 2914 (2008).
X. Xiao, S.L. Yuan, Y.Q. Wang, G.M. Ren, J.H. Miao, G.Q. Yu, Z.M. Tian, and S.Y. Yin, Solid State Commun. 141, 348 (2007).
L.M. Rodriguez-Martinez, H. Ehrenberg, and J.P. Attfield, Solid State Sci. 2, 11 (2000).
L.W. Lei, Z.Y. Fu, and J.Y. Zhang, Mater. Lett. 60, 970 (2006).
Q. Xu, D. Huang, W. Chen, J. Lee, B. Kim, H. Wang, and R. Yuan, Ceram. Int. 30, 429 (2004).
J.B. Goodenough, Annu. Rev. Mater. Sci. 28, 1 (1998).
E. Taşarkuyu, A.E. Irmak, A. Coskun, and S. Aktürk, J. Alloys Compd. 588, 422 (2014).
Y.K. Lakshmi, G. Venkataiah, and P.V. Reddy, J. Appl. Phys. 106, 023707 (2009).
C. Shivakumara, M.B. Bellakki, A.S. Prakash, and N.Y. Vasanthacharya, J. Am. Ceram. Soc. 90, 3852 (2007).
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Irmak, A.E., Taşarkuyu, E., Coşkun, A. et al. Structural, Electrical, and Magnetic Properties of High-Temperature-Sintered La1−x Na x MnO3 (0.05 ≤ x ≤ 0.35) Compounds. J. Electron. Mater. 44, 326–331 (2015). https://doi.org/10.1007/s11664-014-3514-6
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DOI: https://doi.org/10.1007/s11664-014-3514-6