Magnetic properties and colossal magnetoresistance of La(Ca)M materials doped with Fe

K. Ahn, X. Wu, K. Liu, C. Chien

Research output: Contribution to journalArticlepeer-review

327 Scopus citations

Abstract

The effect of Fe doping (<20%) on the Mn site in the ferromagnetic ((Formula presented)) and the antiferromagnetic ((Formula presented)) phases of (Formula presented) has been studied. The same ionic radii of (Formula presented) and (Formula presented) cause no structure change in either series, yet conduction and ferromagnetism have been consistently suppressed by Fe doping. Colossal magnetoresistance has been shifted to lower temperatures, and in some cases enhanced by Fe doping. Doping with Fe bypasses the usually dominant lattice effects, but depopulates the hopping electrons and thus weakens the double exchange.

Original languageEnglish (US)
Pages (from-to)15299-15302
Number of pages4
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume54
Issue number21
DOIs
StatePublished - Jan 1 1996
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

Fingerprint

Dive into the research topics of 'Magnetic properties and colossal magnetoresistance of La(Ca)M materials doped with Fe'. Together they form a unique fingerprint.

Cite this