Title

Electrical and Structural Properties of La(Fe,M)O₃ (M = Mn, Ni, Cu)

Abstract

Structural and electrical properties of doped LaFeO3 with Mn, Ni or Cu are studied by neutron diffraction, x-ray diffraction, conductivity measurements and thermoelectrical power measurements. Generation of the carriers (electron holes) in Mn and Cu doped LaFeO3 is a thermally activated process. The carrier fraction reaches a plateau determined by the dopant content. Electrical conductivity of Ni doped LaFeO3 is particularly high with a negligible activation energy, indicating Ni doped LaFeO3 is a metallic conductor, whereas conduction in Mn and Cu doped LaFeO3 is through polaron hopping. copyright The Electrochemical Society.

Meeting Name

ECS Transactions (2005, Los Angeles, CA)

Department(s)

Materials Science and Engineering

Second Department

Chemistry

Third Department

Physics

Document Type

Article - Conference proceedings

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 2005 The Electrochemical Society (ECS), All rights reserved.


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