TY - JOUR
KW - Deposition
KW - Lattice constants
KW - Multilayers
KW - Lanthanum compounds
KW - Strontium compounds
KW - Magnetization
KW - X-ray crystallography
KW - Strontium titanate
KW - Ferromagnetic resonance
KW - Thermal effects
KW - SQUIDs
KW - Rutherford backscattering spectroscopy
KW - Mathematical models
KW - Magnetic resonance
KW - Deposition temperature
KW - Lanthanum barium manganate
KW - Magnetic homogeneity
KW - Portis modes
KW - Spin wave resonance
AU - M.C Robson
AU - C Kwon
AU - K.-C Kim
AU - R.P Sharma
AU - T Venkatesan
AU - S.E Lofland
AU - S.M Bhagat
AU - Ramamoorthy Ramesh
AU - M Dominguez
AU - S.D Tyagi
AB - We have compared a single layer of La0.7Ba0.3MnO3 and a trilayer structure of SrTiO3/La0.7Ba0.3MnO3/SrTiO 3, both grown epitaxially on a LaAlO3 substrate, using information obtained by ferromagnetic resonance (FMR). The trilayer samples have a more uniform magnetization and are not susceptible to environmental degradation. This may be due to the strain relief that the buffer SrTiO3 layer provides for the La0.7Ba0.3MnO3 layer. We have also studied the magnetic homogeneity of the trilayer structure as a function of the deposition temperature. The perpendicular FMR linewidth, Γ⊥, shows a clear window in the deposition temperature where the linewidth is <50 Oe. However, the parallel linewidth, Γ|, is nearly ten times larger than Γ⊥ with only a weak dependence on the deposition temperature. This broadening of the parallel linewidth compared to the perpendicular linewidth can be explained by invoking a local unidirectional anisotropy in the plane of the film. © 1996 American Institute of Physics.
BT - Journal of Applied Physics
DO - 10.1063/1.363066
LA - eng
M1 - 4
N1 - cited By 12
N2 - We have compared a single layer of La0.7Ba0.3MnO3 and a trilayer structure of SrTiO3/La0.7Ba0.3MnO3/SrTiO 3, both grown epitaxially on a LaAlO3 substrate, using information obtained by ferromagnetic resonance (FMR). The trilayer samples have a more uniform magnetization and are not susceptible to environmental degradation. This may be due to the strain relief that the buffer SrTiO3 layer provides for the La0.7Ba0.3MnO3 layer. We have also studied the magnetic homogeneity of the trilayer structure as a function of the deposition temperature. The perpendicular FMR linewidth, Γ⊥, shows a clear window in the deposition temperature where the linewidth is <50 Oe. However, the parallel linewidth, Γ|, is nearly ten times larger than Γ⊥ with only a weak dependence on the deposition temperature. This broadening of the parallel linewidth compared to the perpendicular linewidth can be explained by invoking a local unidirectional anisotropy in the plane of the film. © 1996 American Institute of Physics.
PB - American Institute of Physics Inc.
PY - 1996
SP - 2334
EP - 2338
T2 - Journal of Applied Physics
TI - Characterization of epitaxial La0.7Ba0.3MnO3 structures using ferromagnetic resonance
VL - 80
SN - 00218979
ER -