Results overview: Found 6 records in 0.02 seconds.
Articles, 5 records found
Research literature, 1 records found
Articles 5 records found  
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) ; Ordejón Rontomé, Pablo (Institut Català de Nanociència i Nanotecnologia) ; García, Alberto (Institut de Ciència de Materials de Barcelona) ; Canadell Casanova, Enric (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 (Institut de Ciència de Materials de Barcelona) ; Ordejón Rontomé, 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  
3.
16 p, 836.4 KB Coexistence of elastic modulations in the charge density wave state of 2H-NbSe₂ / Guster, Bogdan (Institut Català de Nanociència i Nanotecnologia) ; Rubio Verdú, Carmen (CIC NanoGUNE700) ; Robles, Roberto (Institut Català de Nanociència i Nanotecnologia) ; Zaldívar, Javier (CIC NanoGUNE) ; Dreher, Paul (Donostia International Physics Center) ; Pruneda, Miguel (Institut Català de Nanociència i Nanotecnologia) ; Silva-Guillén, Jose Angel (Wuhan University. School of Physics and Technology) ; Choi, Deung-Jang (Donostia International Physics Center) ; Pascual, José I. (CIC NanoGUNE) ; Ugeda, Miguel M. (CIC NanoGUNE) ; Ordejón Rontomé, Pablo (Institut Català de Nanociència i Nanotecnologia) ; Canadell Casanova, Enric (Institut de Ciència de Materials de Barcelona)
Bulk and single-layer 2H-NbSe₂ exhibit identical charge density wave order (CDW) with a quasi-commensurate 3 × 3 superlattice periodicity. Here we combine scanning tunnelling microscopy (STM) imaging at T = 1 K of 2H-NbSe₂ with first-principles density functional theory (DFT) calculations to investigate the structural atomic rearrangement of this CDW phase. [...]
2019 - 10.1021/acs.nanolett.9b00268
Nano letters, Vol. 19, issue 5 (May 2019) , p. 3027-3032  
4.
10 p, 331.0 KB Electronic properties of single-layer and multilayer transition metal dichalcogenides MX₂ (M = Mo, W and X = S, Se) / Roldan, Rafael (Instituto de Ciencia de Materiales de Madrid) ; Silva-Guillén, Jose Angel (Institut Català de Nanociència i Nanotecnologia) ; López-Sancho, M. Pilar (Instituto de Ciencia de Materiales de Madrid) ; Guinea, Francisco (Instituto de Ciencia de Materiales de Madrid) ; Cappelluti, Emmanuele (Consiglio Nazionale delle Ricerche. Istituto de Sistemi Complessi) ; Ordejón, Pablo (Institut Català de Nanociència i Nanotecnologia)
Single- and few-layer transition metal dichalcogenides have recently emerged as a new family of layered crystals with great interest, not only from the fundamental point of view, but also because of their potential application in ultrathin devices. [...]
2014 - 10.1002/andp.201400128
Annalen der Physik, Vol. 526, issue 9-10 (Oct. 2014) , p. 347-357  
5.
13 p, 2.2 MB Momentum dependence of spin-orbit interaction effects in single-layer and multi-layer transition metal dichalcogenides / Roldán, Rafael (Instituto de Ciencia de Materiales de Madrid) ; López Sancho, M. Pilar (Instituto de Ciencia de Materiales de Madrid) ; Guinea, Francisco (Instituto de Ciencia de Materiales de Madrid) ; Cappelluti, Emmanuele (Istituto de Sistemi Complessi) ; Silva-Guillén, Jose Angel (Institut Català de Nanociència i Nanotecnologia) ; Ordejón Rontomé, Pablo (Institut Català de Nanociència i Nanotecnologia)
One of the main characteristics of the new family of two-dimensional crystals of semiconducting transition metal dichalcogenides (TMDs) is the strong spin-orbit interaction, which makes them very promising for future applications in spintronics and valleytronics devices. [...]
2014 - 10.1088/2053-1583/1/3/034003
2D Materials, Vol. 1, Núm. 3 (December 2014) , art. 34003  

Research literature 1 records found  
1.
133 p, 4.0 MB Theoretical study of the electronic properties of 2D materials / Silva Guillén, Jose Angel ; Ordejón Rontomé, Pablo, dir. ; Canadell Casanovas, Enric, dir. ; Alonso Pruneda, J. Miguel (José Miguel) ; Universitat Autònoma de Barcelona. Departament de Física
Los materiales 2D han sido estudiados desde hace mucho tiempo. Recientemente, desde el descubrimiento del grafeno en 2004 por los premios Nobel A. Geim y K. Novoselov, este tipo de materiales recibió atención de nuevo por parte de la comunidad científica. [...]
Two-dimensional materials have been studied since long time ago. Recently, after the dis- covery of graphene in 2004 by Nobel prizes A. Geim and K. Novoselov, a renewed interest in this kind of materials arose in the scienti c community. [...]

[Barcelona] : Universitat Autònoma de Barcelona, 2015  

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