BackExaminar OpenAire por departamento (eus.) "Materialen fisika"
Now showing items 21-40 of 42
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Long-lived oscillatory incoherent electron dynamics in molecules: trans-polyacetylene oligomers
(IOP Publishing, 2013-04)We identify an intriguing feature of the electron-vibrational dynamics of molecular systems via a computational examination of trans-polyacetylene oligomers. Here, via the vibronic interactions, the decay of an electron ... -
Microcavity phonon polaritons from the weak to the ultrastrong phonon–photon coupling regime
(Nature Research, 2021-10-27)[EN]Strong coupling between light and matter can be engineered to influence their properties and behaviour. Here, the authors demonstrate the evolution from weak to ultrastrong coupling of microcavity modes and optical ... -
Multiflat Bands and Strong Correlations in Twisted Bilayer BoronNitride: Doping-Induced Correlated Insulator and Superconductor
(American Chemical Society, 2019-08)Two-dimensional materials, obtained by van der Waals stacking of layers, are fascinating objects of contemporary condensed matter research, exhibiting a variety of new physics. Inspired by the breakthroughs of twisted ... -
Network dynamics in nanofilled polymers
Baeza, Guilhem P; Dessi, Claudia; Costanzo, Salvatore; Zhao, Dan; Gong, Shushan; Alegría Loinaz, Angel María
; Colb, Ralph H.; Rubinstein, Michael; Vlassopoulos, Dimitris; Kumar, Sanat K. (Nature Publishing, 2016-04-25)
It is well accepted that adding nanoparticles (NPs) to polymer melts can result in significant property improvements. Here we focus on the causes of mechanical reinforcement and present rheological measurements on favourably ... -
Octopus, a computational framework for exploring light-driven phenomena and quantum dynamics in extended and finite system
(American Institute of Physics, 2020)Over the last few years, extraordinary advances in experimental and theoretical tools have allowed us to monitor and control matter at short time and atomic scales with a high degree of precision. An appealing and challenging ... -
One-dimensional flat bands in twisted bilayer germanium selenide
(Nature Publishing, 2020-02-28)Experimental advances in the fabrication and characterization of few-layer materials stacked at a relative twist of small angle have recently shown the emergence of flat energy bands. As a consequence electron interactions ... -
Out-of-Plane Transport of 1T-TaS2/Graphene-Based van der Waals Heterostructures
(American Chemical Society, 2021-07-27)Due to their anisotropy, layered materials are excellent candidates for studying the interplay between the inplane and out-of-plane entanglement in strongly correlated systems. A relevant example is provided by 1T-TaS2, ... -
Parameter-Free Hybridlike Functional Based on an Extended Hubbard Model: DFT Plus U Plus V
(American Physical Society, 2020-10-13)In this paper, we propose an energy functional at the level of DFT U + V that allows us to compute self-consistently the values of the onsite interaction, Hubbard U and Hund J, as well as the intersite interaction V. This ... -
Planar refraction and lensing of highly confined polaritons in anisotropic media
(Nature, 2021-07-15)Refraction between isotropic media is characterized by light bending towards the normal to the boundary when passing from a low- to a high-refractive-index medium. However, refraction between anisotropic media is a more ... -
Plasmonic Antenna Coupling to Hyperbolic Phonon-Polaritons for Sensitive and fast Mid-Infrared Photodetection with Graphene
(Nature, 2020-09-25)Integrating and manipulating the nano-optoelectronic properties of Van der Waals heterostructures can enable unprecedented platforms for photodetection and sensing. The main challenge of infrared photodetectors is to funnel ... -
Poly(3,4-ethylenedioxythiophene) (PEDOT) Derivatives: Innovative Conductive Polymers for Bioelectronics
(MDPI, 2017-08)Poly(3,4-ethylenedioxythiophene)s are the conducting polymers (CP) with the biggest prospects in the field of bioelectronics due to their combination of characteristics (conductivity, stability, transparency and ... -
Polycyclic aromatic chains on metals and insulating layers by repetitive [3+2] cycloadditions
(Nature Publishing, 2020-03-20)The vast potential of organic materials for electronic, optoelectronic and spintronic devices entails substantial interest in the fabrication of -conjugated systems with tailored functionality directly at insulating ... -
Real space manifestations of coherent screening in atomic scale Kondo lattices
Moro Lagares, María; Korytár, Richard; Piantek, Marten; Robles Rodríguez, Roberto; Lorente Palacios, Nicolás; Pascual Chico, José Ignacio; Ibarra García, Manuel Ricardo; Serrate Donoso, David (Nature Publishing, 2019-06-17)
The interaction among magnetic moments screened by conduction electrons drives quantum phase transitions between magnetically ordered and heavy-fermion ground states. Here, starting from isolated magnetic impurities in the ... -
Real-Time Propagation TDDFT and Density Analysis for Exciton Coupling Calculations in Large Systems
(American Chemical Society, 2019-06)Photoactive systems are characterized by their capacity to absorb the energy of light and transform it. Usually, more than one chromophore is involved in the light absorption and excitation transport processes in complex ... -
Relevance of the Quadratic Diamagnetic and Self-Polarization Terms in Cavity Quantum Electrodynamics
(American Chemical Society, 2020-04-15)Experiments at the interface of quantum optics and chemistry have revealed that strong coupling between light and matter can substantially modify the chemical and physical properties of molecules and solids. While the ... -
Single Chiral Skyrmions in Ultrathin Magnetic Films
(MDPI, 2018-11-11)The stability and sizes of chiral skyrmions in ultrathin magnetic films are calculated accounting for the isotropic exchange, Dzyaloshinskii-Moriya exchange interaction (DMI), and out-of-plane magnetic anisotropy within ... -
Surface state tunable energy and mass renormalization from homothetic quantum dot arrays
Piquero Zulaica, Ignacio; Li, Jun; Abd El-Fattah, Z. M.; Solianyk, Leonid; Gallardo Arrieta, Iker; Monjas, Leticia; Hirsch, Anna K. H.; Arnau Pino, Andrés; Ortega Conejero, José Enrique ; Stohr, Meike; Lobo Checa, Jorge (Royal Society of Chemistry, 2019-12-28)
Quantum dot arrays in the form of molecular nanoporous networks are renowned for modifying the electronic surface properties through quantum confinement. Here we show that, compared to the pristine surface state, the band ... -
Survival of Floquet-Bloch States in the Presence of Scattering
(American Chemical Society, 2021-06-23)Floquet theory has spawned many exciting possibilities for electronic structure control with light, with enormous potential for future applications. The experimental demonstration in solids, however, remains largely ... -
Time-Dependent Magnons from First Principles
(American Chemical Society, 2020-02)We propose an efficient and non-perturbative scheme to compute magnetic excitations for extended systems employing the framework of time dependent density functional theory. Within our approach, we drive the system out of ... -
Toward Pricing Financial Derivatives with an IBM Quantum Computer
Martín Fernández, Ana; ; ; ; ; Lamata Manuel, Lucas ; ; Solano Villanueva, Enrique Leónidas ; Sanz Ruiz, Mikel (American Physical Society, 2021-02-22)
Pricing interest-rate financial derivatives is a major problem in finance, in which it is crucial to accurately reproduce the time evolution of interest rates. Several stochastic dynamics have been proposed in the literature ...