C
César González
Researcher at Autonomous University of Madrid
Publications - 88
Citations - 1941
César González is an academic researcher from Autonomous University of Madrid. The author has contributed to research in topics: Scanning tunneling microscope & Density functional theory. The author has an hindex of 24, co-authored 84 publications receiving 1734 citations. Previous affiliations of César González include Academy of Sciences of the Czech Republic & Spanish National Research Council.
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Interplay of conductance, force, and structural change in metallic point contacts
Markus Ternes,Markus Ternes,César González,Christopher P. Lutz,Prokop Hapala,Franz J. Giessibl,Pavel Jelínek,Andreas J. Heinrich +7 more
TL;DR: It is found that the short-range force as well as the conductance in two prototypical metal junctions depend exponentially on the distance and that they have essentially the same exponents.
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Soft phonon, dynamical fluctuations, and a reversible phase transition: indium chains on silicon.
TL;DR: First-principles molecular dynamics simulations show that the (4 x 1) <--> (8 x 2) phase transition is due to the "dynamical fluctuations" the system undergoes when, at high temperature, it fluctuates chaotically between degenerate ground states.
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'All-inclusive' imaging of the rutile TiO(2)(110) surface using NC-AFM.
TL;DR: The results provide insight into the physical mechanisms behind atomic-scale contrast, indicating that electrostatic interaction can lead to a far more complex contrast than commonly assumed.
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Forces and currents in carbon nanostructures: Are we imaging atoms?
TL;DR: First-principles calculations show that the rich variety of image patterns found in carbon nanostructures with the atomic force and scanning tunneling microscopes can be rationalized in terms of the chemical reactivity of the tip and the distance range explored in the experiments.
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First-principles simulations of STM images: From tunneling to the contact regime
J. M. Blanco,César González,Pavel Jelínek,Pavel Jelínek,José Ortega,Fernando Flores,Rubén Pérez +6 more
TL;DR: In this article, the behavior of the total energy, forces, atomic relaxations, and currents for an Al tip on an Al(111) surface as a function of the tip-sample distance indicate that atomic relaxation and saturation effects become relevant in a similar distance range where the onset of a short-range chemical interaction between the tip apex and the surface atoms is taking place.