Microscopic coexistence of a two-component incommensurate spin density wave with superconductivity in underdoped NaFe0.983Co0.017As

Sangwon Oh*, A. M. Mounce, Jeongseop A. Lee, W. P. Halperin, C. L. Zhang, S. Carr, Pengcheng Dai, A. P. Reyes, P. L. Kuhns

*Corresponding author for this work

Research output: Contribution to journalArticle

7 Scopus citations

Abstract

We have performed 75As and 23Na nuclear magnetic resonance (NMR) measurements on a single crystal of NaFe0.9835Co0.0165As and found microscopic coexistence of superconductivity with a two-component spin density wave (SDW). Using 23Na NMR we measured the spatial distribution of local magnetic fields. The SDW was found to be incommensurate with a major component having magnetic moment (∼0.2μB/Fe) and a smaller component with magnetic moment (∼0.02μB/Fe). Spin lattice relaxation experiments reveal that this coexistence occurs at a microscopic level.

Original languageEnglish (US)
Article number134518
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume88
Issue number13
DOIs
StatePublished - Oct 25 2013

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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