Volume 79, Number 1, July 2007
|Number of page(s)||5|
|Section||Condensed Matter: Electronic Structure, Electrical, Magnetic and Optical Properties|
|Published online||15 June 2007|
Enhancement of electronic transport and magnetoresistance of -impregnated thin films
Department of Physics, Saurashtra University - Rajkot 360005, India
2 Thin Film Laboratory, Raja Ramanna Center for Advance Technology - Indore 452 013, India
3 Institute of Laser Engineering, Osaka University - Osaka 565 0871, Japan
4 International Center for Condensed Matter Physics (ICCMP) University of Brasilia - Brasilia, Brazil
Corresponding author: email@example.com
Accepted: 22 May 2007
We have used a non-magnetic barrier, impregnated in (LPSMO) thin film layers, to obtain large magnetoresistance (MR) in the vicinity of room temperature. In the magnetic field of 1T, the LPSMO//LPSMO heterostructure exhibits an MR of at its insulator-to-metal transition temperature () of vis-à-vis an MR of in the pristine LPSMO film at its of 298 K. This enhanced MR, coupled with a 2- to 3-fold increase in the temperature coefficient of resistance and the field coefficient of resistance in the heterostructure compared to that in the LPSMO films, demonstrates the efficiency of this technique in engineering those physical properties of manganites which have potential bearing on the realization of their technological applications.
PACS: 72.25.Mk – Spin transport through interfaces
© Europhysics Letters Association, 2007
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