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- P. Canfield5 profiles82 · h 82
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- Iowa State UniversityUS245 papers
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7 papers · 1 filter
Magnonlike dispersion of spin resonance in Ni-doped BaFeAs
M. G. Kim, G. S. Tucker, D. K. Pratt +10
Inelastic neutron scattering measurements on Ba(FeNi)As manifest a neutron spin resonance in the superconducting state with anisotropic dispersion withi…
Anomalous reduction of the Lorenz ratio at the quantum critical point in YbAgGe
J. K. Dong, Y. Tokiwa, S. L. Bud'ko +2
We report measurements of the electrical and thermal transport on the hexagonal heavy-fermion metal YbAgGe for temperatures 40 mK and in magnetic fields up…
Early stages of magnetization relaxation in superconductors
Mihajlo Vanevic, Zoran Radovic, Vladimir G. Kogan
Magnetic flux dynamics in type-II superconductors is studied within the model of a viscous nonlinear diffusion of vortices for various sample geometries. We find that time dependen…
Magnetoelastic coupling and charge correlation lengths in a twin domain of Ba(FeCo)As (): A high-resolution X-ray diffraction study
Qiang Zhang, Wenjie Wang, Jong-Woo Kim +6
The interplay between structure, magnetism and superconductivity in single crystal Ba(FeCo)As (x=0.047) has been studied using high-resolution X-ray diffr…
Electronic phase diagram of high temperature copper oxide superconductors
U. Chatterjee, J. Zhao, D. Ai +8
In order to understand the origin of high-temperature superconductivity in copper oxides, we must understand the normal state from which it emerges. Here, we examine the evolution…
Enhancing Optical Gradient Forces with Metamaterials
Vincent Ginis, Philippe Tassin, Costas M. Soukoulis +1
We demonstrate how the optical gradient force between two waveguides can be enhanced using transformation optics. A thin layer of double-negative or single-negative metamaterial ca…