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Critical Transport and Magnetization of La0.67Ca0.3MnO3

Published online by Cambridge University Press:  15 February 2011

G. Jeffrey Snyder ,
R. Hiskes ,
S. DiCarolis ,
M. R. Beasley  and
T. H. Geballe
G. Jeffrey Snyder
Affiliation:
Department of Applied Physics, Stanford University, Stanford, CA 94305–4090
R. Hiskes
Affiliation:
Hewlett-Packard, Palo Alto, California 94303–0867
S. DiCarolis
Affiliation:
Hewlett-Packard, Palo Alto, California 94303–0867
M. R. Beasley
Affiliation:
Department of Applied Physics, Stanford University, Stanford, CA 94305–4090
T. H. Geballe
Affiliation:
Department of Applied Physics, Stanford University, Stanford, CA 94305–4090
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Abstract

The critical magnetic properties of bulk La0.67Ca0.3MnO3 and magnetoresistance of a thin film with the same T c were measured and critical exponents determined. The magnetization data can be scaled with β = 0.3 and γ = 0.9, except above T c which appears to be affected by a region where X 3 (M = XH + X 3H3) is positive. An M 2 dependence of the magnetoconducitvity is observed above T c . Below T c , however, such a correspondence between the critical magnetic and transport behavior is not found.

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Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 453: Symposium R – Solid State Chemistry of Inorganic Materials , 1996 , 337
Copyright
Copyright © Materials Research Society 1997

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References

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