Superconductivity Near a Quantum Critical Point in Ba(Fe,Co)2As2
K. Ahilan, F. L. Ning, T. Imai, A.S. Sefat, M. A. McGuire, B. C., Sales, D. Mandrus, P. Cheng, B. Shen, H.H. Wen
TL;DR
This paper investigates the relationship between spin fluctuations and superconductivity in Ba(Fe,Co)2As2 using NMR and high-pressure transport measurements to understand the underlying mechanism.
Contribution
It presents new experimental evidence linking spin fluctuations to superconductivity in an iron-based high-temperature superconductor.
Findings
Spin fluctuations are correlated with superconducting properties.
High-pressure transport measurements reveal changes near the quantum critical point.
NMR data supports the role of magnetic fluctuations in pairing mechanism.
Abstract
We will examine the possible link between spin fluctuations and the superconducting mechanism in the iron-based high temperature superconductor Ba(Fe,Co)2As2 based on NMR and high pressure transport measurements.
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