Control of the Magnetic and Magnetotransport Properties of La0.67Sr0.33MnO3 Thin Films Through Epitaxial Strain

Journal Article · Thu Dec 20 04:00:00 EST 2007 · Applied Physics Letters

OSTI ID:927887

Arenholz, Elke; Takamura, Y; Chopdekar, R V; Arenholz, E; Suzuki, Y

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.

• Research Organization: Ernest Orlando Lawrence Berkeley National Laboratory, Berkeley, CA (US)
• Sponsoring Organization: Advanced Light Source Division
• DOE Contract Number: AC02-05CH11231
• OSTI ID: 927887
• Report Number(s): LBNL-213E
• Journal Information: Applied Physics Letters, Journal Name: Applied Physics Letters Vol. 92; ISSN APPLAB; ISSN 0003-6951
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
AFM XRD XAS XMCD LSMO LSAT GSO DSO
CURIE POINT
MAGNETIZATION
MAGNETORESISTANCE
SATURATION
STRAINS
SUBSTRATES
TEMPERATURE DEPENDENCE
THIN FILMS