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Magnetism, Charge Order and Giant Magnetoresistance in SrFeO$_{3-δ}$ Single Crystals

A. Lebon·P. Adler·C. Bernhard·A. V. Boris·A. V. Pimenov·A. Maljuk·C. T. Lin·C. Ulrich·B. Keimer
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Abstract

The electronic and magnetic properties of SrFeO$_{3-δ}$ single crystals with controlled oxygen content ($0 \leq δ\leq 0.19$) have been studied systematically by susceptibility, transport and spectroscopic techniques. An intimate correlation between the spin-charge ordering and the electronic transport behavior is found. Giant negative as well as positive magnetoresistance are observed.

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A. Lebon, P. Adler, C. Bernhard, A. V. Boris, A. V. Pimenov, A. Maljuk, C. T. Lin, C. Ulrich, B. Keimer. 2004-01-29. Magnetism, Charge Order and Giant Magnetoresistance in SrFeO$_{3-δ}$ Single Crystals. https://doi.org/10.1103/physrevlett.92.037202

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