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Artículos, Encontrados 14 registros
Artículos Encontrados 14 registros  1 - 10siguiente  ir al registro:
1.
10 p, 5.6 MB Experimental Demonstration of a Magnetically Induced Warping Transition in a Topological Insulator Mediated by Rare-Earth Surface Dopants / Muñiz Cano, Beatriz (IMDEA Nanociencia) ; Ferreiros, Yago (IMDEA Nanociencia) ; Pantaleón, Pierre A. (IMDEA Nanociencia) ; Dai, Ji (ALBA Laboratori de Llum de Sincrotró) ; Tallarida, Massimo (ALBA Laboratori de Llum de Sincrotró) ; Figueroa García, Adriana Isabel (Institut Català de Nanociència i Nanotecnologia) ; Marinova, Vera (Institute of Optical Materials and Technologies Acad. G. Bontchev) ; García-Díez, Kevin (Institut Català de Nanociència i Nanotecnologia) ; Mugarza, Aitor (Institut Català de Nanociència i Nanotecnologia) ; Valenzuela, Sergio O. (Institut Català de Nanociència i Nanotecnologia) ; Miranda, Rodolfo (Universidad Autónoma de Madrid) ; Camarero, Julio (Universidad Autónoma de Madrid. Departamento de Física de la Materia Condensada) ; Guinea, Francisco (IMDEA Nanociencia) ; Silva-Guillén, Jose Angel (IMDEA Nanociencia) ; Valbuena, Miguel Ángel (IMDEA Nanociencia)
Magnetic topological insulators constitute a novel class of materials whose topological surface states (TSSs) coexist with long-range ferromagnetic order, eventually breaking time-reversal symmetry. The subsequent bandgap opening is predicted to co-occur with a distortion of the TSS warped shape from hexagonal to trigonal. [...]
2023 - 10.1021/acs.nanolett.3c00587
Nano letters, Vol. 23, Issue 13 (July 2023) , p. 6249-6258  
2.
30 p, 1.6 MB Cobalt atoms drive the anchoring of Co-TPP molecules to the oxygen-passivated Fe(0 0 1) surface / Calloni, Alberto (Politecnico di Milano. Department of Physics) ; Jagadeesh, Madan Sangarashettyhalli (Politecnico di Milano. Department of Physics) ; Bussetti, Gianlorenzo (Politecnico di Milano. Department of Physics) ; Fratesi, Guido (Università degli Studi di Milano. Dipartimento di Fisica) ; Achilli, Simona (Institut Català de Nanociència i Nanotecnologia) ; Picone, Andrea (Politecnico di Milano. Department of Physics) ; Lodesani, Alessandro (Politecnico di Milano. Department of Physics) ; Brambilla, Alberto (Politecnico di Milano. Department of Physics) ; Goletti, Claudio (Università di Roma 'Tor Vergata'. Dipartimento di Fisica) ; Ciccacci, Franco (Politecnico di Milano. Department of Physics) ; Duò, Lamberto (Politecnico di Milano. Department of Physics) ; Finazzi, Marco (Politecnico di Milano. Department of Physics) ; Goldoni, Andrea (Elettra Sincrotrone Trieste) ; Verdini, Alberto (Istituto Officina dei Materiali (Trieste, Itàlia)) ; Floreano, Luca (Istituto Officina dei Materiali (Trieste, Itàlia))
We present a multitechnique investigation of the structural and electronic properties of the prototypical system composed by ultra-thin films of magnetic molecules [Co-tetraphenyl-porphyrins (Co-TPP)] grown on a ferromagnetic substrate [oxygen passivated Fe(0 0 1), namely the Fe(0 0 1)-p(1 × 1)O surface]. [...]
2020 - 10.1016/j.apsusc.2019.144213
Applied surface science, Vol. 505 (March 2020) , art. 144213  
3.
13 p, 15.9 MB Characterization of charge states in conducting organic nanoparticles by X-ray photoemission spectroscopy / Fraxedas, Jordi (Institut Català de Nanociència i Nanotecnologia) ; Vollmer, Antje (Helmholtz Zentrum Berlin Materialien & Energie GmbH) ; Koch, Norbert (Humboldt University. Institute of Physics) ; De Caro, Dominique (Centre national de la recherche scientifique (França). Laboratoire de Chimie de Coordination) ; Jacob, Kane (Centre national de la recherche scientifique (França). Laboratoire de Chimie de Coordination) ; Faulmann, Christophe (Centre national de la recherche scientifique (França). Laboratoire de Chimie de Coordination) ; Valade, Lydie (Centre national de la recherche scientifique (França). Laboratoire de Chimie de Coordination)
The metallic and semiconducting character of a large family of organic materials based on the electron donor molecule tetrathiafulvalene (TTF) is rooted in the partial oxidation (charge transfer or mixed valency) of TTF derivatives leading to partially filled molecular orbital-based electronic bands. [...]
2021 - 10.3390/ma14082058
Materials, Vol. 14, issue 8 (April 2021) , art. 2058  
4.
25 p, 1.3 MB In situ determination of the water condensation mechanisms on superhydrophobic and superhydrophilic titanium dioxide nanotubes / Macias-Montero, Manuel (Instituo de Ciencias de los Materiales de Sevilla) ; Lopez-Santos, Carmen (Instituo de Ciencias de los Materiales de Sevilla) ; Filippin, A. Nicolas (Instituo de Ciencias de los Materiales de Sevilla) ; Rico, Victor J. (Instituo de Ciencias de los Materiales de Sevilla) ; Espinos, Juan Pedro (Instituo de Ciencias de los Materiales de Sevilla) ; Fraxedas, Jordi (Institut Català de Nanociència i Nanotecnologia) ; Pérez-Dieste, Virginia (ALBA Laboratori de Llum de Sincrotró) ; Escudero, Carlos (ALBA Laboratori de Llum de Sincrotró) ; Gonzalez-Elipe, Agustín (Instituo de Ciencias de los Materiales de Sevilla) ; Borras, Ana (Instituo de Ciencias de los Materiales de Sevilla)
One-dimensional (1D) nanostructured surfaces based on high-density arrays of nanowires and nanotubes of photoactive titanium dioxide (TiO) present a tunable wetting behavior from superhydrophobic to superhydrophilic states. [...]
2017 - 10.1021/acs.langmuir.7b00156
Langmuir, Vol. 33, issue 26 (July 2017) , p. 6449-6456  
5.
15 p, 765.8 KB Water-mediated photo-induced reduction of platinum films / Fraxedas, Jordi (Institut Català de Nanociència i Nanotecnologia) ; Zhang, Kuan (Institut Català de Nanociència i Nanotecnologia) ; Sepúlveda, Borja (Institut Català de Nanociència i Nanotecnologia) ; Esplandiu Egido, Maria José (Institut Català de Nanociència i Nanotecnologia) ; Garcia, Xènia (Universitat Politècnica de Catalunya. Departament d'Enginyeria Química) ; Llorca, Jordi (Universitat Politècnica de Catalunya. Departament d'Enginyeria Química) ; Pérez-Dieste, Virginia (ALBA Laboratori de Llum de Sincrotró) ; Escudero, Carlos (ALBA Laboratori de Llum de Sincrotró)
Platinum thin films activated ex situ by oxygen plasma become reduced by the combined effect of an intense soft X-ray photon beam and condensed water. The evolution of the electronic structure of the surface has been characterized by near-ambient-pressure photoemission and mimics the inverse two-step sequence observed in the electro-oxidation of platinum, i. [...]
2019 - 10.1107/S1600577519004685
Journal of Synchrotron Radiation, Vol. 26, issue 4 (July 2019) , p. 1288-1293  
6.
32 p, 1.5 MB Electronic Structure of Titanylphthalocyanine Layers on Ag(111) / Lerch, A. (Philipps-Universität Marburg) ; Fernández, L. (TU Dresden) ; Ilyn, M. (Donostia International Physics Center) ; Gastaldo, Michele (Institut Català de Nanociència i Nanotecnologia) ; Paradinas Aranjuelo, Marcos (Institut Català de Nanociència i Nanotecnologia) ; Valbuena, Miguel Ángel (Institut Català de Nanociència i Nanotecnologia) ; Mugarza, Aitor (Institut Català de Nanociència i Nanotecnologia) ; Ibrahim, A. B. M. (Philipps-Universität Marburg) ; Sundermeyer, J. (Philipps-Universität Marburg) ; Höfer, U. (Philipps-Universität Marburg) ; Schiller, Frederik (Centro de Física de Materiales CSIC)
We have investigated the electronic structures of axially oxo functionalized titanylphthalocyanine (TiOPc) on Ag(111) by X-ray and ultraviolet photoelectron spectroscopies, two-photon photoemission, X-ray absorption spectroscopy, and X-ray magnetic circular dichroism. [...]
2017 - 10.1021/acs.jpcc.7b09147
Journal of physical chemistry. C, Vol. 121, Issue 45 (November 2017) , p. 25353-25363  
7.
16 p, 13.4 MB Polarization dependence of angle-resolved photoemission with submicron spatial resolution reveals emerging one-dimensionality of electrons in NbSe3 / Valbuena, Miguel Ángel (Institut Català de Nanociència i Nanotecnologia) ; Chudzinski, P. (Institute for Theoretical Physics) ; Pons, S. (École Polytechnique Fédérale de Lausanne) ; Conejeros, Sergio (Universidad Católica Del Norte. Departamento de Química) ; Alemany, Pere (Universitat de Barcelona. Departament de Ciència de Materials i Química Física) ; Canadell Casanova, Enric 1950- (Institut de Ciència de Materials de Barcelona) ; Berger, H. (École Polytechnique Fédérale de Lausanne) ; Frantzeskakis, E. (Synchrotron SOLEIL) ; Avila, J. (Synchrotron SOLEIL) ; Asensio, M. C. (Synchrotron SOLEIL) ; Giamarchi, T. (University of Geneva. Department of Quantum Matter Physics) ; Grioni, M. (École Polytechnique Fédérale de Lausanne)
In materials with nearly commensurate band filling the electron liquid may spontaneously separate into components with distinct properties, yielding complex intra-and interunit cell ordering patterns and a reduced dimensionality. [...]
2019 - 10.1103/PhysRevB.99.075118
Physical review B, Vol. 99, Issue 7 (February 2019) , art. 75118  
8.
9 p, 3.6 MB Coverage dependence of the level alignment for methanol on TiO2(110) / Migani, Annapaola (Institut Català de Nanociència i Nanotecnologia) ; Mowbray, Duncan J. (Centro Joxe Mari Korta)
Electronic level alignment at the interface between an adsorbed molecular layer and a semiconducting substrate determines the activity and efficiency of many photocatalytic materials. We perform calculations to determine the coverage dependence of the level alignment for a prototypical photocatalytic interface: 12 and 1 monolayer (ML) intact and dissociated CHOH on rutile TiO(110). [...]
2014 - 10.1016/j.comptc.2014.03.007
Computational and theoretical chemistry, Vol. 1040-1041 (July 2014) , p. 259-265  
9.
16 p, 2.2 MB Metallic thin films on stepped surfaces : Lateral scattering of quantum well states / Schiller, F. (Universidad del País Vasco. Centro de Física de Materiales) ; El-Fattah, Z. M. Abd (Al-Azhar University. Physics Department) ; Schirone, Stephano (Institut Català de Nanociència i Nanotecnologia) ; Lobo Checa, J. (Universidad del País Vasco. Centro de Física de Materiales) ; Urdanpilleta, M. (Universidad del País Vasco. Departamento de Física Aplicada) ; Ruiz Osés, M. (Universidad del País Vasco. Departamento de Física Aplicada) ; Cordón, J. (Universidad del País Vasco. Departamento de Física Aplicada) ; Corso, Martina (Universidad del País Vasco. Centro de Física de Materiales) ; Sanchez-Portal, Daniel (Universidad del País Vasco. Centro de Física de Materiales) ; Mugarza, Aitor (Institut Català de Nanociència i Nanotecnologia) ; Ortega, J. E. (Universidad del País Vasco. Centro de Física de Materiales)
Quantum well states of Ag films grown on stepped Au(111) surfaces are shown to undergo lateral scattering, in analogy with surface states of vicinal Ag(111). Applying angle resolved photoemission spectroscopy we observe quantum well bands with zone-folding and gap openings driven by surface/interface step lattice scattering. [...]
2014 - 10.1088/1367-2630/16/12/123025
New journal of physics, Vol. 16 (December 2014) , art. 123025  
10.
9 p, 2.0 MB Structure and electronic states of vicinal Ag(111) surfaces with densely kinked steps / Ortega Conejero, Enrique (Universidad del País Vasco. Departamento de Física Aplicada) ; Vasseur, Guillaume (Donostia International Physics Centre) ; Piquero Zulaica, Ignacio (Centro de Física de Materiales CSIC) ; Matencio, Sonia (Institut Català de Nanociència i Nanotecnologia) ; Valbuena, Miguel Ángel (Institut Català de Nanociència i Nanotecnologia) ; Rault, Julien E. (Synchrotron SOLEIL) ; Schiller, Frederik (Centro de Física de Materiales CSIC) ; Corso, Martina (Centro de Física de Materiales CSIC) ; Mugarza, Aitor (Institut Català de Nanociència i Nanotecnologia) ; Lobo Checa, Jorge (Universidad de Zaragoza. Departamento de Física de la Materia Condensada)
Vicinal surfaces exhibiting arrays of atomic steps are frequently investigated due to their diverse physical-chemical properties and their use as growth templates. However, surfaces featuring steps with a large number of low-coordinated kink-atoms have been widely ignored, despite their higher potential for chemistry and catalysis. [...]
2018 - 10.1088/1367-2630/aacbb7
New journal of physics, Vol. 20 (July 2018) , art. 73010  

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