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Title: Manganite perovskite ceramics, their precursors and methods for forming

Abstract

Disclosed are a variety of ceramics having the formula Ln.sub.1-xM.sub.xMnO.sub.3, where 0.Itoreq.x.Itoreq.1 and where Ln is La, Ce, Pr, Nd, Pm, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu or Y; M is Ca, Sr, Ba, Cd, or Pb; manganite precursors for preparing the ceramics; a method for preparing the precursors; and a method for transforming the precursors into uniform, defect-free ceramics having magnetoresistance properties. The manganite precursors contain a sol and are derived from the metal alkoxides: Ln(OR).sub.3, M(OR).sub.2 and Mn(OR).sub.2, where R is C.sub.2 to C.sub.6 alkyl or C.sub.3 to C.sub.9 alkoxyalkyl, or C.sub.6 to C.sub.9 aryl. The preferred ceramics are films prepared by a spin coating method and are particularly suited for incorporation into a device such as an integrated circuit device.

Inventors:
;
Issue Date:
Research Org.:
The United States Department of Energy, Washington, DC (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1172160
Patent Number(s):
8974855
Application Number:
11/198,676
Assignee:
The United States Department of Energy (Washington, DC)
Patent Classifications (CPCs):
C - CHEMISTRY C04 - CEMENTS C04B - LIME, MAGNESIA
C - CHEMISTRY C23 - COATING METALLIC MATERIAL C23C - COATING METALLIC MATERIAL
DOE Contract Number:  
FG02-91ER45439
Resource Type:
Patent
Resource Relation:
Patent File Date: 2005 Aug 05
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE

Citation Formats

Payne, David Alan, and Clothier, Brent Allen. Manganite perovskite ceramics, their precursors and methods for forming. United States: N. p., 2015. Web.
Payne, David Alan, & Clothier, Brent Allen. Manganite perovskite ceramics, their precursors and methods for forming. United States.
Payne, David Alan, and Clothier, Brent Allen. Tue . "Manganite perovskite ceramics, their precursors and methods for forming". United States. https://www.osti.gov/servlets/purl/1172160.
@article{osti_1172160,
title = {Manganite perovskite ceramics, their precursors and methods for forming},
author = {Payne, David Alan and Clothier, Brent Allen},
abstractNote = {Disclosed are a variety of ceramics having the formula Ln.sub.1-xM.sub.xMnO.sub.3, where 0.Itoreq.x.Itoreq.1 and where Ln is La, Ce, Pr, Nd, Pm, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu or Y; M is Ca, Sr, Ba, Cd, or Pb; manganite precursors for preparing the ceramics; a method for preparing the precursors; and a method for transforming the precursors into uniform, defect-free ceramics having magnetoresistance properties. The manganite precursors contain a sol and are derived from the metal alkoxides: Ln(OR).sub.3, M(OR).sub.2 and Mn(OR).sub.2, where R is C.sub.2 to C.sub.6 alkyl or C.sub.3 to C.sub.9 alkoxyalkyl, or C.sub.6 to C.sub.9 aryl. The preferred ceramics are films prepared by a spin coating method and are particularly suited for incorporation into a device such as an integrated circuit device.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2015},
month = {3}
}

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