Journal article
NMR investigation of spin correlations in BaCo2As2
Abstract
We use NMR techniques to investigate the magnetic properties of BaCo2As2 single crystals, the nonsuperconducting end member of the Co-substituted iron-pnictide high-Tc superconductor Ba(Fe1−xCox)2As2 with x=1. We present As75 NMR evidence for enhancement of low frequency spin fluctuations below ∼100 K. This enhancement is accompanied by that of static uniform spin susceptibility at the wave vector q = 0, suggesting that the primary channel of …
Authors
Ahilan K; Imai T; Sefat AS; Ning FL
Journal
Physical Review B, Vol. 90, No. 1,
Publisher
American Physical Society (APS)
Publication Date
July 1, 2014
DOI
10.1103/physrevb.90.014520
ISSN
2469-9950