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 Tc(μ0H = 12 T) = 16 K. Our results clearly show that antiferromagnetic order and superconductivity coexist at a microscopical length scale.
Original language | English |
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Pages (from-to) | 95-102 |
Number of pages | 8 |
Journal | Hyperfine Interactions |
Volume | 222 |
Issue number | 1-3 |
DOIs | |
Publication status | Published - May 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