STUDY ON STRUCTURE, MICROSTRUCTURE AND ELECTRICAL PROPERTIES OF La0.67Ca0.33MnO3 SYSTEM IN BULK AND THIN FILM

Authors

  • K. P. Lim Department of Physics, Faculty of Science, Universiti Putra Malaysia Serdang 43400, Selangor, Malaysia Author
  • S. A. Halim Department of Physics, Faculty of Science, Universiti Putra Malaysia Serdang 43400, Selangor, Malaysia Author
  • S. K. Chen Department of Physics, Faculty of Science, Universiti Putra Malaysia Serdang 43400, Selangor, Malaysia Author
  • S. W. Ng Department of Physics, Faculty of Science, Universiti Putra Malaysia Serdang 43400, Selangor, Malaysia Author
  • J. K. Wong Department of Physics, Faculty of Science, Universiti Putra Malaysia Serdang 43400, Selangor, Malaysia Author
  • H. M. Albert Gan Department of Physics, Faculty of Science, Universiti Putra Malaysia Serdang 43400, Selangor, Malaysia Author
  • H. S. Woon Department of Physics, Faculty of Science, Universiti Putra Malaysia Serdang 43400, Selangor, Malaysia Author

Keywords:

polycrystalline, perovskite manganite, thin film, magnetoresistance

Abstract

Manganite compound of La0.67Ca0.33MnO3 polycrystalline in bulk and thin film have been prepared by solid state reaction and pulsed laser ablation deposition method (PLAD), respectively. Rietveld’s refinement showed both samples in single phase of orthorhombic structure with space group of Pbnm. Bulk and thin film showed much different microstructure, where bulk have relatively much more larger crystalline size (~1-2 μm) as compare to thin film (~40-60 nm) samples. Bulk sample showed typical insulator-to-metal transition (Tp) at 218 K when H=0T and shift to 224 K in H=1T. However, thin film sample shows almost insulating over the entire range of temperature and no Tp is observed at the entire measurement range. In this work, we observed that microstructure formation change when convert from bulk to film and drastically charge it electrical resistance.

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Published

10-05-2026

Issue

Vol. 20 No. (1&2) (2012): Solid State Science and Technology

Section

Articles

License

Creative Commons License

This work is licensed under a Creative Commons Attribution 4.0 International License.

How to Cite

K. P. Lim, S. A. Halim, S. K. Chen, S. W. Ng, J. K. Wong, H. M. Albert Gan, & H. S. Woon. (2026). STUDY ON STRUCTURE, MICROSTRUCTURE AND ELECTRICAL PROPERTIES OF La0.67Ca0.33MnO3 SYSTEM IN BULK AND THIN FILM. Solid State Science and Technology, 20((1&2), 56-61. https://journal.massmalaysia.org/ojs/index.php/ssst/article/view/632