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Room Temperature Magnetoresistance in LaxCaYMnO3 Thin-Films Deposited by Liquid Delivery Chemical Vapor Deposition

Published online by Cambridge University Press:  10 February 2011

D. Studebaker ,
M. Todd ,
G. Doubinina ,
C. Seegal  and
T. H. Baum
D. Studebaker
Affiliation:
Advanced Technology Materials Inc., 7 Commerce Drive, Danbury, CT 06810.
M. Todd
Affiliation:
Advanced Technology Materials Inc., 7 Commerce Drive, Danbury, CT 06810.
G. Doubinina
Affiliation:
Advanced Technology Materials Inc., 7 Commerce Drive, Danbury, CT 06810.
C. Seegal
Affiliation:
Advanced Technology Materials Inc., 7 Commerce Drive, Danbury, CT 06810.
T. H. Baum
Affiliation:
Advanced Technology Materials Inc., 7 Commerce Drive, Danbury, CT 06810.
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Abstract

Liquid delivery, metal-organic chemical vapor deposition (MOCVD) was used to deposit high quality, A-site deficient crystalline films of LaxCayMnO3 where x + y < 1. The properties of the deposited thin-films are strongly dependent upon the film stoichiometry and display magnetoresistance repsonses at or above room temperature. Using Ca doped A-site deficient thin-films, we can shift the metal to insulator transition (Te) in a controlled manner to temperatures that are useful for commercial applications. Further, these films exhibit useful magnetoresistance at room temperature in relatively small applied magnetic fields.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 495: Symposium W – Chemical Aspects of Electronic Ceramics Processing , 1997 , 31
Copyright
Copyright © Materials Research Society 1998

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References

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