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

被引：0
作者：
Lanke, UD [1 ]
Pal, JP
机构：
[1] Indian Inst Technol, Dept Met Engn & Mat Sci, Mumbai 400076, India
[2] Natl Chem Lab, Phys & Mat Chem Div, Pune 411008, Maharashtra, India
来源：
BULLETIN OF MATERIALS SCIENCE | 2000年 / 23卷 / 01期
关键词：
pulsed laser deposition; ion-implantation; colossal magnetoresistance; X-ray diffraction; Mossbauer measurements;
D O I：
10.1007/BF02708613
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
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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页码：55 / 59
页数：5
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