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

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

2003-10-29

arxiv.org/abs/cond-mat/0310695v2

Phys. Rev. Lett. 92, 037202 (2004)

Physics

Condensed Matter

Strongly Correlated Electrons

published version

Scientific paper

10.1103/PhysRevLett.92.037202

The electronic and magnetic properties of SrFeO$_{3-\delta}$ single crystals with controlled oxygen content ($0 \leq \delta \leq 0.19$) 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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