Control of the magnetic and magnetotransport properties of La0.67Sr0.33MnO3 thin films through epitaxial strain | Zendy

Yayoi Takamura | Zendy; Rajesh V. Chopdekar | Zendy; Elke Arenholz | Zendy; Y. Suzuki | Zendy

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Control of the magnetic and magnetotransport properties of La0.67Sr0.33MnO3 thin films through epitaxial strain

Author(s) -

Yayoi Takamura,

Rajesh V. Chopdekar,

Elke Arenholz,

Y. Suzuki

Publication year - 2008

Publication title -

applied physics letters

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.182

H-Index - 442

eISSN - 1077-3118

pISSN - 0003-6951

DOI - 10.1063/1.2908051

Subject(s) - condensed matter physics , magnetoresistance , curie temperature , tetragonal crystal system , materials science , electrical resistivity and conductivity , epitaxy , manganite , colossal magnetoresistance , thin film , magnetization , saturation (graph theory) , ferromagnetism , crystallography , nanotechnology , crystal structure , chemistry , magnetic field , physics , mathematics , layer (electronics) , quantum mechanics , combinatorics

The influence of epitaxial strain, in the form of tetragonal distortions, on the magnetic and magnetotransport properties of La{sub 0.67}Sr{sub 0.33}MnO{sub 3} thin films was studied. The tetragonal distortion (c/a ratio) was modulated through the choice of the substrate, ranging from c/a=1.007 on (001)-oriented (LaAlO{sub 3}){sub 0.3}(Sr{sub 2}AlTaO{sub 6}){sub 0.7} substrates to 0.952 on (110)-oriented GdScO{sub 3} substrates. In agreement with previous theoretical predictions, these large values of tensile strain cause the Curie temperature and the saturation magnetization to decrease, alter the temperature dependence of the resistivity and magnetoresistance, and increase the resistivity several orders of magnitude.

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