Commensurate itinerant antiferromagnetism in BaFe 2As 2: 75As-NMR studies on a self-flux grown single crystal

Kentaro Kitagawa, Naoyuki Katayama, Kenya Ohgushi, Makoto Yoshida, Masashi Takigawa

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195 Citations (Scopus)


We report results Of 75As nuclear magnetic resonance (NMR) experiments on a self-flux grown single crystal of BaFe 2As 2. A first-order antiferromagnetic (AF) transition near 135 K was detected by the splitting of NMR lines, which is accompanied by simultaneous structural transition as evidenced by a sudden large change of the electric field gradient tensor at the As site. The NMR results lead almost uniquely to the stripe spin structure in the AF phase. The data of spin-lattice relaxation rate indicate development of anisotropic spin fluctuations of the stripe-type with decreasing temperature in the paramagnetic phase.

Original languageEnglish
Article number114709
Journaljournal of the physical society of japan
Issue number11
Publication statusPublished - 2008 Nov
Externally publishedYes


  • BaFe As
  • Itinerant antiferromagnetism
  • NMR
  • Ternary iron arsenide

ASJC Scopus subject areas

  • Physics and Astronomy(all)


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