César González Pascual

PhD-Physics: Postdoctoral researcher

  • Dr. César Gonzalez Pascual cesar.gonzalez@uam.es Phone number: +34 914972665

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    Scientific Experience


     

    If you are here, maybe you are interested in Condensed Matter as me. Maybe you like the theoretical calculations based in the Density Functional Theory (DFT) methodology and the simulation of electronic current in a Scanning Tunneling Microscope (STM) or the kind of interactions established in an Atomic Force Microscopy (AFM).

    More specifically, I study the atomic and electronic structure of different kind of materials at the very very small nanoscale. The adsorption of atoms or molecules on different semiconducting or metallic reconstructed surfaces has been the main topic of my research. Once the atomic structure is obtained the STM images are estimated and/or the AFM forces can be evaluated.

    Very recently, in March 2017, I have just started to work as a researcher at the Condensed Matter Physics Center (IFIMAC) placed at the Autonoma University Campus in Madrid (Spain). This international research center has received the Excellence Maria de Maeztu recognition from the Spanish Government. My present work is devoted to the development of a new code in order to estimate the current in a Ballistic Emission Electron Microscope (BEEM).

     Predoctoral period

    I started my scientific career in 2000 at the Department of Theoretical Condensed Matter Physics in the UAM (Autonoma University of Madrid) with a grant associated to the Spanish National project "Nuevos conceptos para un incremento significativo de los dispositivos fotovoltaicos: la supercélula solar" in the Professor F. Flores group.

    Some months latter, I received a four-year pre-doc FPI grant from the Science and Technology Spanish Ministry associated to the national project: "Simulación en sistemas complejos en una base de orbitaleslocalizados, moleculas orgánicas en interfases y transiciones de fase ensuperficies de semiconductores" continuing my work in the same group.

    In February 2006, I read my thesis titled: "Métodos DFT y STM de primeros principios para el Estudio de Superficies Semiconductoras con Adsorbatos: Pasivación, Nanohilos y Transición de Fase" supervised by F. Flores, R. Pérez and J. Ortega, obtaining the highest qualification: sobresaliente cum laude.

     Working as a post-doc

    After my PhD, I stayed on the same department with two postdoctoral contracts associated to the NANO-OBJETOS project founded by the Comunidad Autónoma de Madrid (leaded by F. Flores) and to the "Transporte en Nanoestructuras y Microscopios de Proximidad" project founded by Education and Science Spanish Ministry and led by R. Perez).

    In August 2007, I was awarded a postdoctoral grant from the Education and Science Ministry of Spain to work in the Institute of Physics of Prague in the NANOSURF LAB group leaded by Pavel Jelinek. There, I could improve my knowledge about the AFM simulations and methodology, including a strong and direct collaboration with several experimental groups.

    After one year in Prague, I was awarded a three year JAE-doc position to work at the ICMM CSIC-institute within the ESISNA group. The title of the project was "Nanostructured molecular systems”. Then, the main topic of my research turned to the study of the organic molecules adsorbed over a surface such as TIO2 or other inert metals (Au or Cu)

    Between January 2012 and December 2015, I  worked at the University of Oviedo. I obtained a postdoctoral contract associated to the European project "RADINTERFACES" dedicated to the study of advanced materials capable to resist radiation damage produced in the first wall of future nuclear fusion reactors. The strong collaboration with the Nuclear Fusion Institute led to a two months stay in the beginning of 2015.