Bulletin of Materials Science

, 42:267 | Cite as

A comparative study on phase co-existence of \(\hbox {La}_{1/4}\hbox {Pr}_{3/8}\hbox {Ca}_{3/8}\hbox {MnO}_{3}\) in a polycrystalline bulk and thin film

  • Harsh BhattEmail author
  • Yogesh Kumar
  • C L Prajapat
  • M K Thota
  • Surendra Singh


We present a comparative study on phase co-existence in \(\hbox {La}_{1/4}\hbox {Pr}_{3/8}\hbox {Ca}_{3/8}\hbox {MnO}_{3}\) (LPCMO) in a polycrystalline bulk and thin film form. The X-ray diffraction results confirm the formation of single-phase polycrystalline bulk and c-axis-oriented strained epitaxial thin films on a \(\hbox {LaAlO}_{3}\) substrate. Scanning electron microscopy images show a homogeneous microstructure growth for both the bulk as well as thin film samples. The temperature dependent magnetization curves for bulk and thin film show remarkably different features indicating the presence of very different phase separation scenarios. A two-step rise and a large thermal hysteresis are observed between zero-field cooled and field-cooled magnetization plots in the bulk sample. However, the magnetization of the film shows a very small hysteresis and a negligible signature of the CO-AFM state for the same composition. The field dependent magnetization plots indicate that in a bulk form LPCMO is a soft magnet and shows a metamagnetic behaviour while in a thin film form it acts as a hard magnet and the metamagnetic behaviour is completely lost.


Phase co-existence PLD charge ordering ferromagnetism SEM 



We would like to thank Mr V B Jayakrishnan from BARC, Mumbai for his help in recording the X-ray diffraction patterns. This work is partially supported by the Department of Science and Technology (DST), India via the DST INSPIRE Faculty research grant (DST/INSPIRE/04/2015/002938).


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Copyright information

© Indian Academy of Sciences 2019

Authors and Affiliations

  • Harsh Bhatt
    • 1
    • 4
    Email author
  • Yogesh Kumar
    • 1
  • C L Prajapat
    • 2
  • M K Thota
    • 3
  • Surendra Singh
    • 1
    • 4
  1. 1.Solid State Physics DivisionBhabha Atomic Research CentreTrombayIndia
  2. 2.Technical Physics DivisionBhabha Atomic Research CentreTrombayIndia
  3. 3.Mechanical Metallurgy DivisionBhabha Atomic Research CentreTrombayIndia
  4. 4.Homi Bhabha National InstituteMumbaiIndia

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