Resultados globales: 2 registros encontrados en 0.02 segundos.
Artículos, Encontrados 2 registros
Artículos Encontrados 2 registros  
1.
18 p, 4.7 MB Quasiparticle spectra of 2H-NbSe2 : two-band superconductivity and the role of tunneling selectivity / Noat, Y. (Institut des Nanosciences de Paris) ; Silva-Guillén, Jose Angel (Institut Català de Nanociència i Nanotecnologia) ; Cren, T. (Institut des Nanosciences de Paris) ; Cherkez, V. (Institut des Nanosciences de Paris) ; Brun, C. (Institut des Nanosciences de Paris) ; Pons, S. (Institut des Nanosciences de Paris) ; Debontridder, F. (Institut des Nanosciences de Paris) ; Roditchev, D. (Institut des Nanosciences de Paris) ; Sacks, W. (Université Paris 6) ; Cario, L. (Institut des Matériaux Jean Rouxel) ; Ordejon, Pablo (Institut Català de Nanociència i Nanotecnologia) ; Garcia, Alberto (Institut de Ciència de Materials de Barcelona) ; Canadell Casanova, Enric 1950- (Institut de Ciència de Materials de Barcelona)
We have studied the superconducting state of 2H-NbSe2 by scanning tunneling spectroscopy along two different crystal orientations, the c and the a/b axes. Along the c axis a large gap is dominant in the spectra, while a smaller gap is measured along the a/b axis. [...]
2015 - 10.1103/PhysRevB.92.134510
Physical review B : Condensed matter and materials physics, Vol. 92, Issue 13 (October 2015) , art. 134510  
2.
8 p, 1.5 MB Tunneling and electronic structure of the two-gap superconductor MgB2 / Silva-Guillén, Jose Angel (Institut Català de Nanociència i Nanotecnologia) ; Noat, Y. (Institut des Nanosciences de Paris) ; Cren, T. (Institut des Nanosciences de Paris) ; Sacks, W. (Institut des Nanosciences de Paris) ; Canadell Casanova, Enric 1950- (Institut de Ciència de Materials de Barcelona) ; Ordejon, Pablo (Institut Català de Nanociència i Nanotecnologia)
A combined experimental (superconductor-insulator-superconductor tunneling spectra) and theoretical (density functional theory) study of the two-gap superconductor MgB2 is reported. The calculations confirm that the small gap is associated with a π band mostly based on the boron pz orbitals leading to the three-dimensional band component of the Fermi surface. [...]
2015 - 10.1103/PhysRevB.92.064514
Physical review B : Condensed matter and materials physics, Vol. 92, Issue 6 (August 2015) , art. 64514  

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