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4 papers · 2 filters
What superconducts in sulfur hydrides under pressure, and why
N. Bernstein, C. S. Hellberg, M. D. Johannes +2
The recent discovery of superconductivity at 190~K in highly compressed HS is spectacular not only because it sets a record high critical temperature, but because it does so…
Structural origin of the anomalous temperature dependence of the local magnetic moments in the CaFeAs family of materials
L. Ortenzi, H. Gretarsson, S. Kasahara +8
We report a combination of Fe K x-ray emission spectroscopy and -intio calculations to investigate the correlation between structural and magnetic degrees of freedom in CaFe…
Superconducting TiN Films Sputtered over a Large Range of Substrate DC Bias
H. M. Iftekhar Jaim, J. A. Aguilar, B. Sarabi +5
We have investigated properties of superconducting titanium nitride (TiN) films that were sputtered over a large range of RF-induced DC bias voltage applied to the substrate. Films…
What is the minimal model of magnetic interactions in Fe-based superconductors?
J. K. Glasbrenner, J. P. Velev, I. I. Mazin
Using noncollinear first-principles calculations we perform a systematic study of the magnetic order in several families of ferropnictides. We find a fairly universal energy depend…