406 citations · 1.2k across the 13 of their papers we have counts for
13 papers
NMR investigation of spin correlations in BaCo2As2
K. Ahilan, T. Imai, A. S. Sefat +1
We use NMR techniques to investigate the magnetic properties of BaCo2As2 single crystals, the non-superconducting end member of the Co-substituted iron-pnictide high Tc superconduc…
Superconductivity Near a Quantum Critical Point in Ba(Fe,Co)2As2
K. Ahilan, F. L. Ning, T. Imai +7
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…
Contrasting Spin Dynamics Between Underdoped and Overdoped Ba(Fe[1-x]Co[x])2As2
F. L. Ning, K. Ahilan, T. Imai +7
We report the first NMR investigation of spin dynamics in the overdoped non-superconducting regime of Ba(Fe[1-x]Co[x])2As2 up to x =0.26. We demonstrate that the absence of inter-b…
The Electronic Phase Diagram of the Iron-based High Tc Superconductor Ba(Fe(1-x)Co(x))2As2 Under Hydrostatic Pressure (0 < x <0.099)
K. Ahilan, F. L. Ning, T. Imai +4
We report comprehensive resistivity measurements of single crystalline samples of the Ba(Fe(1-x)Co(x))2As2 high Tc superconductor under hydrostatic pressure up to 2.75 GPa and over…
75As NMR Observation of Anisotropic Spin Fluctuations in the Ba[(Fe0.92Co0.08)2]2As2 Superconductor (Tc = 22 K)
Fanlong Ning, Kanagasingham Ahilan, Takashi Imai +5
We demonstrate that the anisotropy R of the paramagnetic spin fluctuations grows toward Tc at 75As sites in the optimally electron-doped superconductor Ba[(Fe0.92Co0.08)2]2As2, wit…
Why Does Undoped FeSe Become A High Tc Superconductor Under Pressure?
T. Imai, K. Ahilan, F. L. Ning +2
Unlike the parent phases of the iron-arsenide high Tc superconductors, undoped FeSe is not magnetically ordered and exhibits superconductivity with Tc~9K. Equally surprising is the…