Contactless measurement of colossal magnetoresistance in La1-xSrxMnO3 using the infrared magnetorefractive effect

R F C Marques, P R Abernethy, J A D Matthew, C O Paiva-Santosa, L Perazolli, M Jafelicci, S M Thompson

Research output: Contribution to journalArticlepeer-review

Abstract

The magnetorefractive effect (MRE) has been used for the first time to study the magnetotransport properties of La1-xSrxMnO3 perovskite materials. A direct correlation between the MRE and colossal magnetoresistance was observed. Samples with x = 0-0.3 prepared using the homogeneous coprecipitation and the solid state reaction methods were studied, covering the range of insulating to metallic behaviour. The M RE probed both the magnetically induced modification of the scattering of Drude-like electrons and the magnetic dependence of a stretching vibration mode. (C) 2004 Elsevier B.V. All rights reserved.

Original languageEnglish
Pages (from-to)1740-1741
Number of pages2
JournalJournal of Magnetism and Magnetic Materials
Volume272-76
DOIs
Publication statusPublished - May 2004

Keywords

  • CMR
  • magnetorefractive effect
  • infrared reflection spectroscopy
  • perovskite
  • lanthanum strontium-doped manganite

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