Influence of Thickness on the Magnetic and Magnetotransport Properties of Epitaxial La(0.7)Sr(0.3)MnO(3) Films Deposited on STO (0 0 1)

Epitaxial La(0.7)Sr(0.3)MnO(3) films with different thicknesses (9–90 nm) were deposited on SrTiO(3) (0 0 1) substrates by pulsed laser deposition. The films have been investigated with respect to morpho-structural, magnetic, and magneto-transport properties, which have been proven to be thickness d...

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Detalles Bibliográficos
Autores principales: Greculeasa, Simona Gabriela, Stanciu, Anda-Elena, Leca, Aurel, Kuncser, Andrei, Hrib, Luminita, Chirila, Cristina, Pasuk, Iuliana, Kuncser, Victor
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2021
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8706966/
https://www.ncbi.nlm.nih.gov/pubmed/34947736
http://dx.doi.org/10.3390/nano11123389
Descripción
Sumario:Epitaxial La(0.7)Sr(0.3)MnO(3) films with different thicknesses (9–90 nm) were deposited on SrTiO(3) (0 0 1) substrates by pulsed laser deposition. The films have been investigated with respect to morpho-structural, magnetic, and magneto-transport properties, which have been proven to be thickness dependent. Magnetic contributions with different switching mechanisms were evidenced, depending on the perovskite film thickness. The Curie temperature increases with the film thickness. In addition, colossal magnetoresistance effects of up to 29% above room temperature were evidenced and discussed in respect to the magnetic behavior and film thickness.

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