Concepedia

Giant magnetoresistance in oxypnictides (La,Nd)OMnAs

Nicolas Emery, Eve J. Wildman, J.M.S. Skakle, G. Giriat, R.I. Smith, Abbie C. Mclaughlin

Chemical Communications · 2010 · 53 citations · 13 references

DOI

Concepts

Abstract

A sizeable negative magnetoresistance (MR) has been observed for oxypnictides LnOMnAs (Ln = La,Nd). MR up to -24% is observed at 200 K for LaOMnAs which is unprecedented for divalent Mn(2+). Both materials are weak ferromagnets with transition temperatures above room temperature.

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