Manganite perovskite ceramics, their precursors and methods for forming

Payne, David Alan; Clothier, Brent Allen

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

Patent · Tue Mar 10 00:00:00 EDT 2015

OSTI ID:1172160

Payne, David Alan; Clothier, Brent Allen

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.

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Research Organization:: The United States Department of Energy, Washington, DC (United States)

Sponsoring Organization:: USDOE

DOE Contract Number:: FG02-91ER45439

Assignee:: The United States Department of Energy (Washington, DC)

Patent Number(s):: 8,974,855

Application Number:: 11/198,676

OSTI ID:: 1172160

Resource Relation:: Patent File Date: 2005 Aug 05

Country of Publication:: United States

Language:: English

References (48)

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