Share Email Print
cover

Proceedings Paper

Polycrystalline SrFe12O19 thin films grown by pulsed laser deposition
Author(s): Tupac Garcia; E. de Posada; Ernesto Jimenez; J. L. Sanchez Ll.; S. Diaz Castanon; Pascual Bartolo-Perez; W. Cauich; I. Oliva; J. L. Pena; O. Ceh
Format Member Price Non-Member Price
PDF $14.40 $18.00
cover GOOD NEWS! Your organization subscribes to the SPIE Digital Library. You may be able to download this paper for free. Check Access

Paper Abstract

Polycrystalline SrFe12O19 thin films were deposited on Si (100) substrates by PLD using a Nd-YAG laser ((lambda) equals 1064 nm). During the deposition process substrates were kept at room temperature. As-deposited films were annealed in air at temperatures between 600 degree(s)C and 840 degree(s)C. Samples were characterized by AES, ESCA, SEM, AFM, x-ray diffraction and VSM. It is presented the relevance of the preparation of the target surface on the film quality. Some differences in the chemical composition of as-deposited films, compared with the target and the annealed films, were observed. The x-ray diffraction spectra show a textured as- deposited films. Samples annealed at 600 degree(s)C, and below, showed a very weak magnetic response. In contrast annealing in the temperature range 700 degree(s)C - 840 degree(s)C led to the formation of a nanocrystalline particle system (average particle size 150 - 350 nm) which behave as a single domain in the thermally demagnetized state. The obtained coercivities (5750 - 6850 Oe) are among the highest values reported for films, powders and sintered samples.

Paper Details

Date Published: 6 July 1999
PDF: 6 pages
Proc. SPIE 3572, 3rd Iberoamerican Optics Meeting and 6th Latin American Meeting on Optics, Lasers, and Their Applications, (6 July 1999); doi: 10.1117/12.358345
Show Author Affiliations
Tupac Garcia, Univ. de La Habana (Cuba)
E. de Posada, Univ. de La Habana (Cuba)
Ernesto Jimenez, Univ. de La Habana (Cuba)
J. L. Sanchez Ll., Univ. de La Habana (Cuba)
S. Diaz Castanon, Univ. de La Habana (Cuba)
Pascual Bartolo-Perez, Ctr. de Investigacion y de Estudios Avanzados del IPN (Mexico)
W. Cauich, Ctr. de Investigacion y de Estudios Avanzados del IPN (Mexico)
I. Oliva, Ctr. de Investigacion y de Estudios Avanzados de IPN (Mexico)
J. L. Pena, Ctr. de Investigacion y de Estudios Avanzados del IPN (Mexico)
O. Ceh, Ctr. de Investigacion y de Estudios del IPN (Mexico)


Published in SPIE Proceedings Vol. 3572:
3rd Iberoamerican Optics Meeting and 6th Latin American Meeting on Optics, Lasers, and Their Applications
Angela Maria Guzman, Editor(s)

© SPIE. Terms of Use
Back to Top