Laser-induced voltage (LIV) enhancement of La sub(2/3)Sr sub(1/3)MnO sub(3) films with Ag addition

La sub(2/3)Sr sub(1/3)MnO sub(3):Ag sub( x )(LSMO:Ag sub( x ), x=0, 0.04, 0.08, 0.10, 0.20, 0.30) films were grown on vicinal cut LaAlO sub(3) (LAO) substrates by pulsed laser deposition technique (PLD). It is found that laser-induced voltage (LIV) of LSMO:Ag sub( x )films is improved and enhanced b...

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Published inApplied physics. A, Materials science & processing Vol. 115; no. 4; pp. 1371 - 1374
Main Authors Liu, Xiang, Yan, Yi-zhi, Chen, Qing-ming, Zhang, Hui, Yin, Xue-peng
Format Journal Article
LanguageEnglish
Published 01.06.2014
Subjects
Anisotropy
Distortion
Electric potential
Mathematical analysis
Pulsed laser deposition
Silver
Tensors
Voltage
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Summary:La sub(2/3)Sr sub(1/3)MnO sub(3):Ag sub( x )(LSMO:Ag sub( x ), x=0, 0.04, 0.08, 0.10, 0.20, 0.30) films were grown on vicinal cut LaAlO sub(3) (LAO) substrates by pulsed laser deposition technique (PLD). It is found that laser-induced voltage (LIV) of LSMO:Ag sub( x )films is improved and enhanced by Ag addition. With x increasing, figure of merit (F sub(m )) and anisotropic Seebeck coefficient ( Delta S) of LSMO:Ag sub( x )(x=0.08) films reach the maximum values of 28.25 mV/ns and 0.38 mu V/K, respectively. The results suggest that the LIV enhancement of LSMO:Ag sub( x )films is due to the anisotropy of the Seebeck tensor, which is produced by long range cooperative Jahn-Teller distortions with Ag addition.
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ISSN:0947-8396
1432-0630
DOI:10.1007/s00339-013-8013-8