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- Centre National de la Recherche ScientifiqueFR43 papers
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17 papers · 1 filter
How the vortex lattice of a superconductor becomes disordered: a study by scanning tunneling spectroscopy
M. Zehetmayer
Order-disorder transitions take place in many physical systems, but observing them in detail in real materials is difficult. In two- or quasi-two-dimensional systems, the transitio…
Two Ising-like magnetic excitations in a single-layer cuprate superconductor
Yuan Li, G. Yu, M. K. Chan +10
There exists increasing evidence that the phase diagram of the high-transition temperature (Tc) cuprate superconductors is controlled by a quantum critical point. One distinct theo…
Pressure study of the noncentrosymmetric 5d-electron superconductors CaMSi3 (M= Ir, Pt)
Gaku Eguchi, Friedrich Kneidinger, Leonid Salamakha +3
We report hydrostatic pressure study on the Rashba-type noncentrosymmetric superconduc- tors CaMSi3 (M= Ir, Pt). The temperature dependence of the resistivity for both compounds is…
Opening of the superconducting gap in the hole pockets of Ba(Fe(1-x)Co(x))2As2 as seen via Angle-Resolved PhotoElectron Spectroscopy
B. Mansart, E. Papalazarou, M. Fuglsang Jensen +8
We present an Angle-Resolved PhotoElectron Spectroscopy study of the changes in the electronic structure of electron doped Ba(Fe(1-x)Co(x))2As2 across the superconducting phase tra…
Pair breaking by nonmagnetic impurities in the noncentrosymmetric superconductor CePt3Si
M. Nicklas, F. Steglich, J. Knolle +3
We have studied the effect of Ge substitution and pressure on the heavy-fermion superconductor CePt3Si. Ge substitution on the Si site acts as negative chemical pressure leading to…
Magnetic measurement of the critical current anisotropy in coated conductors
F. Hengstberger, M. Eisterer, H. W. Weber
We determine the critical current anisotropy at maximum Lorentz force from hysteresis loops in a vibrating sample magnetometer. To eliminate the signal of spurious variable Lorentz…