TY - JOUR
KW - Substrates
KW - Stresses
KW - Lanthanum compounds
KW - Magnetic anisotropy
KW - Strontium compounds
KW - Magnetization
KW - Crystal lattices
KW - Ferromagnetic resonance
KW - Magnetic thin films
KW - Microscopic examination
KW - Magnetic hysteresis
KW - Magnetic force microscopy (MFM)
KW - Stress-induced surface magnetization
AU - C Kwon
AU - S.E Lofland
AU - S.M Bhagat
AU - M Rajeswari
AU - T Venkatesan
AU - Ramamoorthy Ramesh
AU - A.R Kratz
AU - R.D Gomez
AB - The role of stress on magnetic properties of epitaxial (La0.7Sr0.3)MnO3 (LSMO) films has been studied. We have investigated 1100 A thick LSMO films deposited on LaAlO3 (Sample L, under a compressive stress) and SrTiO3 (Sample S, under a tensile stress) using the magnetic force microscopy (MFM), DC hysteresis loop, ferromagnetic resonance (FMR) measurements. 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 an in-plane magnetization. The hysteresis loop and ferromagnetic resonance measurements give quantitative evidence for the role of the lattice mismatch between the film and the substrate in the magnetic anisotropy of the two films. Our systematic examination of various thickness LSMO films on LaAlO3 reveals that the maze pattern i s exhibited only between 500 Aand 1700 A thick films. Despite of larger anisotropy, no maze pattern is observed in films thinner than 360 A. © 1997 IEEE.
BT - IEEE Transactions on Magnetics
DO - 10.1109/20.619630
LA - eng
M1 - 5 PART 2
N1 - cited By 15
N2 - The role of stress on magnetic properties of epitaxial (La0.7Sr0.3)MnO3 (LSMO) films has been studied. We have investigated 1100 A thick LSMO films deposited on LaAlO3 (Sample L, under a compressive stress) and SrTiO3 (Sample S, under a tensile stress) using the magnetic force microscopy (MFM), DC hysteresis loop, ferromagnetic resonance (FMR) measurements. 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 an in-plane magnetization. The hysteresis loop and ferromagnetic resonance measurements give quantitative evidence for the role of the lattice mismatch between the film and the substrate in the magnetic anisotropy of the two films. Our systematic examination of various thickness LSMO films on LaAlO3 reveals that the maze pattern i s exhibited only between 500 Aand 1700 A thick films. Despite of larger anisotropy, no maze pattern is observed in films thinner than 360 A. © 1997 IEEE.
PY - 1997
SP - 3964
EP - 3966
T2 - IEEE Transactions on Magnetics
TI - Stress-Induced Surface Magnetization of (La0.7Sr0.3)MnO3 Thin Films
VL - 33
SN - 00189464
ER -