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Campus de Excelencia InterncionalCampus of International Excellence



Total 100 eventos
Agenda de eventos
03/11/2017 - 03/11/2017From Loving Viruses, to being Amazed by Cancer, to Admiring the Immune Response







12/09/2017 - 12/09/2017Surface chemical reactions at epitaxial graphene and material beyond graphene


In this talk, an overview of surface-science investigations on the chemical reactivity of epitaxial graphene (Gr) and materials “beyond graphene” (van der Waals semiconductors, topological insulators, Dirac semimetals, Weyl semimetals) will be provided.


By means of time-resolved X-ray photoemission spectroscopy and high-resolution electron energy loss spectroscopy, different surface chemical reactions in epitaxial Gr have been followed in real time (Gr growth by cracking of hydrocarbons, oxidation, intercalation of chemical species).

In particular, we have observed that, due to the similar work functions, Gr grows as an undoped sheet on the Pt-skin of Pt3Ni(111) but in an oxygen environment Ni segregation toward the surface occurs with selective oxidation of Ni. Subsequently, the Pt skin underneath Gr is replaced by a nickel-oxide skin. In the oxidation process, Gr acquires a p-type doping of 0.3 eV [1].

We have also used surface-science tools for investigating Gr employment in the fields of energy and catalysis. By means of a combination of surface-science spectroscopies and density functional theory [2], we have unveiled the mechanisms ruling the catalytic role of epitaxial Gr grown on transition-metal substrates for the production of hydrogen from water. Water decomposition at the Gr/metal interface at room temperature provides a hydrogenated Gr sheet, which is buckled and decoupled from the metal substrate. Molecular hydrogen is released upon heating above T=400 K.


Moreover, the analysis of the chemical reactivity of surface defects of two-dimensional materials provides important information for the nanofabrication process of electronic devices with active channels of ultrathin flakes of black phosphorus (few-layer phosphorene) [3] or InSe [4], which require the use of capping layers in order to avoid surface degradation in ambient conditions. In particular, we find high reactivity of phosphorene toward water, oxygen and CO [5], while water decomposition at room temperature occurs at Se vacancies of InSe [4].


Furthermore, the chemical inertness of high-quality single crystals of topological insulators toward ambient gases [6] will be discussed. The subsequent ambient stability of uncapped topological insulator-based nanodevices [7] paves the way for the technological exploitation of topological insulators in the fields of plasmonics [8] and Terahertz photodetection [7].

Finally, surface-science investigations on the chemical reactivity of Weyl semimetals and Dirac semimetals, also highlighting their potential applications in catalysis, will be presented.



[1]         A. Politano and G. Chiarello, 2D Mater. 4 (2017) 035003.

[2]          A. Politano et al., ACS Nano 10 (2016) 4543.

[3]          L. Viti et al., Adv. Mater. 27 (2015) 5567; L. Viti et al., Adv. Mater. 28 (2016) 7390.

[4]          A. Politano et al. Nanoscale 8 (2016) 8474.

[5           A. Politano et al., Nano Res. 9 (2016) 2598.

[6]          A. Politano et al., J. Phys. Chem. C 118 (2014) 21517.

[7]           L. Viti et al., Nano Lett. 16 (2016) 80; A. Politano et al. APL Mater. 5 (2017) 035504.

[8]          A. Politano et al., Phys. Rev. Lett. 115 (2015) 216802.

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30/06/2017 - 30/06/2017Some novel science in the field of nanophotonics



Via nanophotonics, one can tailor the laws of physics (as far as light is concerned) almost at will. This way, a variety of novel physical phenomena can be enabled and observed. Some examples in topology and light-matter interaction will be presented.




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16/06/2017 - 16/06/2017Charge Berezinskii-Kosterlitz-Thouless transition in superconducting NbTiN films


The superconductor-insulator transition (SIT) is a quantum phase transition in disordered superconducting films that occurs at the point where two inherently two-dimensional topological phase transitions - charage and vortex Berezinskii-Kosterlitz-Thouless (BKT) transitions - terminate each other. Applied magnetic fields can tune the SIT with high resolution, offering a window into relatively unexplored electronic functionalities. While the superconducting side of the SIT is well understood, the nature of the highly resistive superinsulating state that terminates two-dimensional superconductivity at the quantum critical point remains an open question.

I will present an experimental observation of the magnetic field-driven superconductor-superinsulator transition in disordered thin NbTiN films and demonstrate that the highly resistive state is an ordered charge BKT state. The observed nonmonotonic behaviour of the charge BKT transition temperature with magnetic field allows resolving a long-standing question of the origin of a giant magnetoresistance peak in the insulating state. These findings establish that BKT physics is a universal platform for the dual superconducting and superinsulating states.

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12/02/2017 - 12/02/2017Ciclo Ciencia en Primera Persona: "La superconductividad: ese extraño fenómeno cuántico que puedes ver", por Belén Valenzuela

Belén Valenzuela es científico titular en el Instituto de Ciencia de Materiales de Madrid
desde el 2009. Hizo físicas en la UAM y se doctoró en la Universidad Carlos III de

La conferencia se imparte dentro del ciclo "Ciencia en primera persona", charlas divulgativas en las que un equipo de investigadores acercarán su trabajo y los avances en su ámbito de estudio a todo tipo de público.

Las conferencias tendrán lugar el segundo domingo de cada mes a las 12 horas. La entrada es gratuita.

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Total 100 eventos
Agenda de eventos
21/03/2018 - 21/03/2018Spatial Positioning of Innate Controls B Cell Immunity to Infection

Ponente: Mauro Gaya (Ragon Institute of MGH, MIT and Harvard)

16/03/2018 - 16/03/2018Small Open Reading Frames: translated, functional and...envolving into new proteins?

Ponente: Juan Pablo Couso (Centro Andaluz de Biología del Desarrollo, CSIC-UPO. Sevilla, España)

12/03/2018 - 12/03/2018Modelling the impact of mutations on protein stability, binding affinity, and dynamics

Ponente: Yves Dehouck - Université Libre Bruxelles

09/03/2018 - 09/03/2018Interactions of Light with Gold and Other Metals

Presentación a cargo de Luis M. Liz-Marzán Bionanoplasmonics Laboratory, CIC biomaGUNE, San Sebastian, and Ikerbasque, Basque Foundation for Science, Bilbao, Spain


The response of noble metals to light changes dramatically when the size of the metal particles is reduced to the nanometer scale. The interaction of light with conduction electrons then results in coherent oscillations that can achieve resonance with certain electromagnetic frequencies. Such phenomena are called localized surface plasmon resonances (LSPRs), and can be finely tuned through the size and morphology of the nanoparticles, so that the whole visible and near-IR ranges can be covered. Exquisitely accurate synthetic methods have been devised toward the growth of metal particles with both spherical and anisotropic geometries, with narrow size distributions. Further tuning of morphological and optical properties can be achieved by post-synthesis chemical transformations, typically leading to morphological changes that offer advantageous application, e.g. in photothermal effects or surface enhanced spectroscopies.

In this talk we shall discuss some ideas regarding the combination of anisotropic seeded growth and post-synthesis transformations in metal nanoparticles, as well as some examples of their effects in different types of optical spectroscopy.



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Dear all:


A new IFIMAC Conference will  take place on Friday; March 9th at the  Condensed Matter Physics Center (IFIMAC )

You will find all the information below.


WHEN: Friday; March 9th  (2018); 12.00 h



SPEAKER:  Luis M. Liz-Marzán (Bionanoplasmonics Laboratory, CIC biomaGUNE, San Sebastian, and Ikerbasque, Basque Foundation for Science, Bilbao, Spain)


TITLE: " Interactions of Light with Gold (and Other Metals)”



13/02/2018 - 13/02/2018A jellium pseudopotential generator for modelling the plasmonic response of complex-shaped nanostructures


Experimental advances in the fabrication and control of nanometallic architectures, achieving nanometric and even sub-nanometric precision, have underlined the significance of quantum effects for systems with plasmonic functionalities, thereby challenging classical descriptions of their optical properties. In the interest of capturing both global geometrical features, as well as the intrinsically quantum nature of the electronic response at optical frequencies, we introduce a flexible jellium pseudopotential generator (JPG) for time-dependent density functional computations. We demonstrate the predictive capacity afforded by the JPG through a study of both single gold nanocubes, as well as of a sequence of morphological transformations that relate the cubic and spherical geometries. Plasmon-induced charge distributions for the cube are found to be in qualitative agreement with classical predictions, not withstanding deviations that originate in electronic delocalisation. The evolution in the absorption spectrum, during the cube-sphere transition, highlights the role of not only the polyhedral vertices, but also of the manner in which they are connected. Conclusions of this nature may bear important implications for the design of complex-shaped nanoparticles with desirable optical properties.



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Agentes y colaboradores

  • Universidad Autónoma de Madrid
  • CSIC
  • AICA
  • Centro de Microanálisis de Materiales (CMAM)
  • Centro de Investigación en Física de la Materia Condensada (IFIMAC)
  • CBMSO - Centro de Biología Molecular Severo Ochoa
  • CIAL - Centro de Investigación en Ciencias de la Alimentación
  • CNB - Centro Nacional de Biotecnología 
  • Centro de Iniciativas Emprendedoras (CIADE)
  • Cámara de Madrid
  • Fundación Universitaria Autónoma de Madrid
  • ICMAT - Instituto de Ciencias Matemáticas
  • ICMM - Instituto de Ciencia de Materiales de Madrid
  • ICP - Instituto de Catálisis y Petroquímica
  • ICV - Instituto de Cerámica y Vidrio
  • IFT - Instituto de FísicaTeórica
  • IIBM - Instituto de Investigaciones Biomédicas Alberto Sols
  • IMDEA - Alimentación
  • IMDEA - Nanociencia
  • IMM - Instituto de Microelectrónica de Madrid
  • InNorMadrid
  • Parque Científico de Madrid
  • Oficina de Transferencia de Resultados de la Investigación (OTRI) de la UAM
  • Facultad de Ciencias
  • Facultad de Ciencias Económicas y Empresariales
  • Facultad de Derecho
  • Facultad de Filosofía y Letras
  • Facultad de Medicina
  • Facultad de Formación de Profesorado y Educación
  • Facultad de Psicología
  • Escuela Politécnica Superior
Proyecto realizado con ayudas concedidas por el Ministerio de Economía y Competitividad / EXPEDIENTE: CEI10-1-0009 CEI UAM+CSIC: INNOCAMPUS 2010 Proyecto financiado por el Ministerio de Educación, Cultura y Deporte, y el Ministerio de Economía y Competitividad en el marco del Programa Campus de Excelencia Internacional/ EXPEDIENTE: CEI10-1-0009 CEI UAM+CSIC: INNOCAMPUS 2010