Microscopic coexistence of antiferromagnetism and superconductivity in hole-doped Iron-pnictides Ba0.77K0.23Fe2As2 revealed by NMR

R. Zhou, Z. Li, J. Yang, G. Q. Zheng

Research output: Contribution to journalArticle

Abstract

We have performed nuclear magnetic resonance (NMR) measurements on an underdoped single-crystal Ba0. 77K0. 23Fe2As2 with Tc = 16. 5 K. Below TN = 46 K, an internal magnetic field splits the NMR peaks of H ∥ c and shifts those of H ∥ a to higher frequencies. The nuclear spin-lattice relaxation rate 1/T1 measured at the central peak with H ∥ a shows a distinct decrease below Tc0H = 12 T) = 16 K. Our results clearly show that antiferromagnetic order and superconductivity coexist at a microscopical length scale.

Original languageEnglish
Pages (from-to)95-102
Number of pages8
JournalHyperfine Interactions
Volume222
Issue number1-3
DOIs
Publication statusPublished - Apr 5 2013

Keywords

  • Antiferromagnetism
  • Iron pnictides
  • Nuclear magnetic resonance
  • Superconductivity

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Nuclear and High Energy Physics
  • Condensed Matter Physics
  • Physical and Theoretical Chemistry

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