High-Field Magnetoresistance of La0.67Sr0.33MnO3 Thin Films Deposited on LiNbO3 Substrates

• Type: Article in International Scientific Journal
• Date: 2010

Authors

gomes, i. t. (Author) Other; pereira, a. m. (Author) FCUP; ventura, j. (Author) FCUP; carpinteiro, f. (Author) Other; moreira, j. m. (Author) Other; araujo, j. p. (Author) FCUP; barbosa, j. (Author) Other; almeida, b. g. (Author) Other

Journal

Title: Journal of Low Temperature Physics

Vol. 159

Pages: 156-159

ISSN: 0022-2291

Publisher: Springer Nature

Indexing

ISI Web of Knowledge - 2 Citations

Scopus - 3 Citations

Other information

Authenticus ID: P-003-7XK

DOI: 10.1007/s10909-009-0107-5

Abstract (EN): Colossal magnetoresistive manganites have been widely studied due to their potential use in sensor and device applications. In this work, La0.67Sr0.33MnO3 thin films were deposited by pulsed laser ablation on LiNbO3 substrates and magnetoresistance measurements were performed using pulsed magnetic fields up to 25 T. The corresponding magnetoconductance of the films was fitted in order to obtain the grain boundary (GB) contribution to the transport properties. The observed temperature dependence of the fitting parameters was indicative of antiferromagnetism across GB spins and reflected the progressive reduction of magnetic ordering with increasing temperature.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 4