Journal of Low Temperature Physics

, Volume 187, Issue 5–6, pp 699–704 | Cite as

Effects of Grain Size on the Magnetic Properties in Bulk and Powder \(\hbox {LaMn}_{0.95}\hbox {Cu}_{0.05}\hbox {O}_{3}\) Perovskite

  • Tian Gao
  • Mei Wu
  • Ningning Qi
  • Chao Sun
  • Yongsheng Liu
Article
  • 38 Downloads

Abstract

We studied the effects of grain size on the magnetic property in the B-site dilute doped \(\hbox {LaMn}_{0.95}\hbox {Cu}_{0.05}\hbox {O}_{3}\) (LMCO) bulk and powder materials, which were prepared by the traditional solid-state reaction and ball-milling process, respectively. XRD patterns show that a single phase of orthorhombic perovskite structure is formed. A sharp paramagnetic-ferromagnetic (PM-FM) transition is detected at its Curie temperature \(T_{\mathrm{C}}\sim 157\,\hbox {K}\). For LMCO bulk samples, the grain size is at \({\sim }10\,{\upmu }\hbox {m}\) proven by SEM observation, and the saturation magnetization \((M_{\mathrm{s}})\) is measured to be \(3.84\,{\upmu }_{\mathrm{B}}\) per formula unit \(({\upmu }_{\mathrm{B}}\hbox {/f.u.})\). However, the long-range magnetic ordering of \(\hbox {e}_{\mathrm{g}}\) electrons below \(T_{\mathrm{C}}\) is weakened by milling the bulk material into nano-size particles. The magnetization decreases with milling time increasing, as well as the particle size. The particle size is observed to be \({<}0.30\) and \({<}0.20\,{\upmu }\hbox {m}\) for 12 and 18 h ball-milled powders, the corresponding \(M_{\mathrm{s}}\) is detected to be 2.23 and \(1.48\,{\upmu }_{\mathrm{B}}\hbox {/f.u.,}\) respectively.

Keywords

Manganites Magnetization curves Hysteresis loops 

Notes

Acknowledgements

This work is supported by the National Natural Science Foundation of China (Nos. 11204171, 11374204), the Shanghai Municipal Natural Science Foundation (No.16ZR1413600), and “Electrical Engineering” Shanghai class II Plateau Discipline.

References

  1. 1.
    Elbio Dagotto, Takashi Hotta, Adriana Moreo, Phys. Rep. 344, 1 (2001)ADSCrossRefGoogle Scholar
  2. 2.
    D. Niebieskikwiat, M.B. Salamon, Phys. Rev. B 72, 174422 (2005)ADSCrossRefGoogle Scholar
  3. 3.
    Weidong Luo, Alberto Franceschetti, Maria Varela, Jing Tao, Stephen J. Pennycook, Sokrates T. Pantelides, Phys. Rev. Lett. 99, 036402 (2007)ADSCrossRefGoogle Scholar
  4. 4.
    S. Schaile, H.-A. Krug von Nidda, J. Deisenhofer, M.V. Eremin, Y. Tokura, A. Loidl, Phys. Rev. B 90, 054424 (2014)ADSCrossRefGoogle Scholar
  5. 5.
    C. Zener, Phys. Rev. 82, 403 (1951)ADSCrossRefGoogle Scholar
  6. 6.
    Ph Vanderbemden, B. Vertruyen, A. Rulmont, R. Cloots, G. Dhalenne, M. Ausloos, Phys. Rev. B 68, 224418 (2003)ADSCrossRefGoogle Scholar
  7. 7.
    R.I. Dass, J.B. Goodenough, Phys. Rev. B 67, 014401 (2003)ADSCrossRefGoogle Scholar
  8. 8.
    A. Moreo, S. Yunoki, E. Dagotto, Science 283, 2034 (1999)CrossRefGoogle Scholar
  9. 9.
    Leszek J. Spalek, Siddharth S. Saxena, Christos Panagopoulos, Takuro Katsufuji, Jason A. Schiemer, Michael A. Carpenter, Phys. Rev. B 90, 054119 (2014)ADSCrossRefGoogle Scholar
  10. 10.
    A.J. Millis, B.I. Shraiman, R. Mueller, Phys. Rev. Lett. 77, 175 (1996)ADSCrossRefGoogle Scholar
  11. 11.
    Nandini Das, Parthasarathi Mondal, Dipten Bhattacharya, Phys. Rev. B 74, 014410 (2006)ADSCrossRefGoogle Scholar
  12. 12.
    J.-H. Park, S.-W. Cheong, C.T. Chen, Phys. Rev. B 55, 11072 (1997)ADSCrossRefGoogle Scholar
  13. 13.
    P.A. Joy, Y.B. Khollam, S.K. Date, Phys. Rev. B 62, 8608 (2000)ADSCrossRefGoogle Scholar
  14. 14.
    I.O. Troyanchuk, N.V. Samsonenko, N.V. Kasper, H. Szymczak, A. Nabialek, J. Phys. Condens. Matter 9, 8287 (1997)ADSCrossRefGoogle Scholar
  15. 15.
    J.B. Goodenough, A. Wold, R.J. Arnitt, N. Menyuk, Phys. Rev. 124, 373 (1961)ADSCrossRefGoogle Scholar
  16. 16.
    K. Asai, K. Fujiyoshi, N. Nishimori, Y. Satoh, J. Phys. Soc. Jpn. 67, 4218 (1998)ADSCrossRefGoogle Scholar
  17. 17.
    W.J. Lu, Y.P. Sun, B.C. Zhao, X.B. Zhu, W.H. Song, Phys. Rev. B 73, 174425 (2006)ADSCrossRefGoogle Scholar
  18. 18.
    K. Ghosh, S.B. Ogale, R. Ramesh, R.L. Greene, T. Venkatesan, K.M. Gapchup, R. Bathe, S.I. Patil, Phys. Rev. B 59, 533 (1999)ADSCrossRefGoogle Scholar
  19. 19.
    B.S. Nagaraja, A. Rao, G.S. Okram, J. Alloys Compd. 683, 308–317 (2016)CrossRefGoogle Scholar
  20. 20.
    Fei Gong, Wei Tong, Shun Tan, Yuheng Zhang, Phys. Rev. B 68, 174410 (2003)ADSCrossRefGoogle Scholar

Copyright information

© Springer Science+Business Media New York 2017

Authors and Affiliations

  • Tian Gao
    • 1
  • Mei Wu
    • 1
  • Ningning Qi
    • 1
  • Chao Sun
    • 1
  • Yongsheng Liu
    • 1
  1. 1.Department of PhysicsShanghai University of Electric PowerShanghaiChina

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