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Fe-57-ion implantation in pulse laser deposited La0.75Ca0.25MnO3 films: Conversion electron Mossbauer spectroscopy and X-ray diffraction studies

Authors
  • LANKE, UD
  • PAL, JP
Publication Date
Jan 01, 2000
Source
DSpace at IIT Bombay
Keywords
Language
English
License
Unknown
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Abstract

Oriented La0.75Ca0.25MnO3 (LCMO) films have been deposited by pulsed laser deposition (PLD) method on (100) LaAlO3 substrates. Ion-beam technique is used to introduce a very low concentration of Fe-57 in LCMO film. The deposited films were subjected to 100 keV Fe-57(+) implantation with different fluences at room temperature. The main motivation of this work was to study the influence of implantation on the transport mechanism in materials exhibiting colossal magnetoresistance (CMR) property. It is observed that Fe implantation drastically affects the structural and magneto-transport properties. The samples were characterized using the X-ray diffraction (XRD) technique, conversion electron Mossbauer spectroscopy (CEMS) and resistance-temperature (R-T) measurements.

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