Advanced Materials World Congress
News Insight

Impact Factor of Advanced Materials Letters: 1.93

Online Advertising

Adv Mat Lett is an official journal of IAAM

VBRI Press is a member of CrossRefDOAJ
Adv Mat Lett is a member of DOAJ

fullabstractpdf

Get PDF

Full Article

A Study On Correlation Between Strain Effect And Conduction Mechanism Of La0.9Ca0.1MnO3 Films

S. Uthayakumar, P. Santhosh, G. H. Aydogdu, H. -U. Habermeier

Volume 4, Issue 11, Page 823-826, Year 2013 | DOI: 10.5185/amlett.2013.3436

Keywords:

Perovskite manganites; polycrystalline ceramics; magnetoresistance effect; transport mechanism.

Abstract: 

Thin films of La0.9Ca0.1MnO3 with thicknesses in the range of 40-200 nm grown on (100) SrTiO3 employing pulsed laser deposition (PLD) technique have been investigated by measuring structure and transport properties. The structural properties of the films were studied by X-ray diffraction (XRD) technique employing 2- scan and the results show a high quality crystalline nature with ‘b’ axis orientation. The Jahn-Teller strain (εJ–T) was found to decrease with thickness. Transport measurements were performed using standard four probe technique, which shows an insulating behavior for all the thickness at low temperatures. The high temperature resistivity obeys the small polaron hopping. Further more, the obtained results from the transport measurement shows lowering of polaron binding energy for the films grown under tensile strain as compared to our previous work on La0.9Sr0.1MnO3 films. Copyright © 2013 VBRI press.

fullabstractpdf

Get PDF

Full Article