Electronic and magnetic properties of Nd1-xSrxMnAsO oxyarsenides

Abbie McLaughlin, Eve Jennifer Wildman, Nicolas Emery

Research output: Contribution to journalArticlepeer-review

5 Citations (Scopus)


The oxypnictides Nd1-xSrx MnAsO have been successfully synthesized with x up to 0.1. A synchrotron x-ray diffraction study demonstrates that there is no change in crystal symmetry upon doping with Sr. An expansion of the interlayer distance between Nd-O-Nd and As-Mn-As blocks is observed with increasing x. Results from variable temperature neutron diffraction and resistivity measurements show that the local moment antiferromagnetic order of the Mn spins is preserved as the [MnAs]-layers are hole doped and the materials are driven metallic for x >= 0.05. A sizable positive magnetoresistance is observed at low temperature which demonstrates that multiple MR mechanisms are possible in LnMnAsO oxypnictides.
Original languageEnglish
Article number224413
JournalPhysical Review B Condensed Matter and Materials Physics
Issue number22
Publication statusPublished - 8 Dec 2014


  • Magnetoresistance
  • Oxypnictide
  • Magnetism


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