Zobrazeno 1 - 10
of 96
pro vyhledávání: '"Munoz, M. C."'
Publikováno v:
Phys. Rev. B 95, 075115 (2017)
Undoped iron superconductors accommodate $n=6$ electrons in five d-orbitals. Experimental and theoretical evidence shows that the strength of correlations increases with hole-doping, as the electronic filling approaches half-filling with $n=5$ electr
Externí odkaz:
http://arxiv.org/abs/1610.09560
Publikováno v:
Carbon 93, 88-104, 2015
Quasi-free standing graphene (QFG) obtained by the intercalation of a hydrogen layer between a SiC surface and the graphene is recognized as an excellent candidate for the development of graphene based technology. In addition, the recent proposal of
Externí odkaz:
http://arxiv.org/abs/1410.4551
Publikováno v:
Phys. Rev. 87, 235402 (2013)
We study the electronic structure of chiral and achiral graphene nanoribbons with symmetric edges, including curvature and spin-orbit effects. Curved ribbons show spin-split bands, whereas flat ribbons present spin-degenerate bands. We show that this
Externí odkaz:
http://arxiv.org/abs/1304.7137
Autor:
López-Sancho, M. P., Muñoz, M. C.
Recent theoretical and experimental works on carbon nanotubes and graphene samples have revealed that spin-orbit interactions, though customarily ignored in carbon-based materials, are more important and complex than it was thought. We study the intr
Externí odkaz:
http://arxiv.org/abs/1009.5560
The adsorption of hydrogen on the polar Zn-ended ZnO(0001) surface has been investigated by density functional {\it ab-initio} calculations. An on top H(1x1) ordered overlayer with genuine H-Zn chemical bonds is shown to be energetically favorable. T
Externí odkaz:
http://arxiv.org/abs/0907.4637
Publikováno v:
Phys. Rev. B 79, 235423 (2009)
We have theoretically explored the spin-orbit interaction in carbon nanotubes. We have found that, besides the dependence on chirality and diameter, the effects of spin-orbit coupling are anisotropic: spin splitting is larger for the higher valence o
Externí odkaz:
http://arxiv.org/abs/0902.4401
Publikováno v:
Phys. Rev. B 78, 195418 (2008)
We present detailed numerical studies of the magnetic anisotropy energy of a magnetic impurity near the surface of metallic hosts (Au and Cu), that we describe in terms of a realistic tight-binding surface Green's function technique. We study the cas
Externí odkaz:
http://arxiv.org/abs/0805.3275
First principles calculations of the O surfaces of Co-ZnO show that substitutional Co ions develop large magnetic moments which long-range coupling depends on their mutual distance. The local spin polarization induced at the O atoms is three times la
Externí odkaz:
http://arxiv.org/abs/0804.3937
Publikováno v:
Phys. Rev. Lett. 96, 067204 (2006)
We propose a new mechanism for surface-induced magnetic anisotropy to explain the thickness-dependence of the Kondo resistivity of thin films of dilute magnetic alloys. The surface anisotropy energy, generated by spin-orbit coupling on the magnetic i
Externí odkaz:
http://arxiv.org/abs/cond-mat/0512154
The occurence of spin-polarization at ZrO$_{2}$, Al$_{2}$O$_{3}$ and MgO surfaces is proved by means of \textit{ab-initio} calculations within the density functional theory. Large spin moments, as high as 1.56 $\mu_B$, develop at O-ended polar termin
Externí odkaz:
http://arxiv.org/abs/cond-mat/0509578