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Observation of Growth-Related Magnetic Structures in La0.67Sr0.33MnO3

Published online by Cambridge University Press:  10 February 2011

M. E. Hawley ,
G. W. Brown  and
C. Kwon
M. E. Hawley
Affiliation:
Los Alamos National Laboratory, Los Alamos, NM 87545, USA, [email protected]
G. W. Brown
Affiliation:
Los Alamos National Laboratory, Los Alamos, NM 87545, USA, [email protected]
C. Kwon
Affiliation:
Los Alamos National Laboratory, Los Alamos, NM 87545, USA, [email protected]
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Abstract

Ambient observation of magnetic structures by magnetic force microscopy (MFM) in La0.67Sr0.33MnO3 films has not yet been clearly correlated with stresses induced by the kinetic or thermodynamic growth processes or the compressive (LaAlO3) or tensile (SrTiO3) nature of the substrate lattice-mismatch. Although domain-like magnetic structures have been seen in some as-grown films on LAO and related to substrate-induced stress and film thickness, no magnetic structure has been seen for films on STO and other films grown under different kinetic conditions on LAO. In this study we have identified a set of pulsed-laser deposition conditions with the substrate temperature as a variable to determine the relationship between growth and stress-induced magnetic structures. Results from scanning tunneling, atomic force, and MFM microscopies, magnetization, and coercivity measurements will be presented.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 494: Symposium V – Science & Technology of Magnetic Oxides , 1997 , 263
Copyright
Copyright © Materials Research Society 1998

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References

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