TY - JOUR
KW - Thin films
KW - Anisotropy
KW - Magnetoresistance
KW - Substrates
KW - Magnetization
KW - Magnetic properties
KW - Magnetic force microscope
KW - Stress-induced effects
AU - C Kwon
AU - M.C Robson
AU - K.-C Kim
AU - J.Y Gu
AU - S.E Lofland
AU - S.M Bhagat
AU - Z Trajanovic
AU - M Rajeswari
AU - T Venkatesan
AU - A.R Kratz
AU - R.D Gomez
AU - Ramamoorthy Ramesh
AB - The transport and magnetic properties of epitaxial (La0.7Sr0.3)MnO3 (LSMO) films deposited on LaAlO3 (Sample L, under a compressive stress) and SrTiO3 (Sample S, under a tensile stress) are compared. The magnetic force microscope image of Sample L shows a 'maze-like' pattern indicating a sizable out-of-plane magnetization, while the magnetic image of Sample S shows a 'feather-like' pattern indicative of in-plane magnetization. The hysteresis loop and ferromagnetic resonance measurements indicate that the lattice mismatch between the film and the substrate is the origin of the differences in the magnetic anisotropy of the two films. Sample L has a smaller 'peak' resistivity and a larger saturation magnetization at room temperature than Sample S. Our results can be understood by the internal 'pressure' consequent upon lattice mismatch and agree qualitatively with the recent hydrostatic pressure studies on the doped manganites.
BT - Journal of Magnetism and Magnetic Materials
DO - 10.1016/S0304-8853(97)00058-9
LA - eng
M1 - 3
N1 - cited By 219
N2 - The transport and magnetic properties of epitaxial (La0.7Sr0.3)MnO3 (LSMO) films deposited on LaAlO3 (Sample L, under a compressive stress) and SrTiO3 (Sample S, under a tensile stress) are compared. The magnetic force microscope image of Sample L shows a 'maze-like' pattern indicating a sizable out-of-plane magnetization, while the magnetic image of Sample S shows a 'feather-like' pattern indicative of in-plane magnetization. The hysteresis loop and ferromagnetic resonance measurements indicate that the lattice mismatch between the film and the substrate is the origin of the differences in the magnetic anisotropy of the two films. Sample L has a smaller 'peak' resistivity and a larger saturation magnetization at room temperature than Sample S. Our results can be understood by the internal 'pressure' consequent upon lattice mismatch and agree qualitatively with the recent hydrostatic pressure studies on the doped manganites.
PB - Elsevier
PY - 1997
SP - 229
EP - 236
T2 - Journal of Magnetism and Magnetic Materials
TI - Stress-induced effects in epitaxial (La0.7Sr0.3)MnO3 films
VL - 172
SN - 03048853
ER -