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Now showing items 11-20 of 42
How Confinement Affects the Nucleation, Crystallization, and Dielectric Relaxation of Poly(butylene succinate) and Poly(butylene adipate) Infiltrated within Nanoporous Alumina Templates
(ACS Publications, 2019-10-17)
This work describes the successful melt infiltration of poly(butylene succinate) (PBS) and poly(butylene adipate) (PBA) within 70 nm diameter anodic aluminum oxide (AAO) templates. The infiltrated samples were characterized ...
Exciton control inaroom temperature bulk semiconductor withcoherent strain pulses
(American Association for the Advancement of Science, 2019-11)
Controlling the excitonic optical properties of room temperature semiconductors using time-dependent perturbations is key to future optoelectronic applications. The optical Stark effect in bulk and low-dimensional materials ...
Validity of perturbative methods to treat the spin-orbit interaction: application to magnetocrystalline anisotropy
(IOP Publishing, 2019-07-29)
A second-order perturbation (2PT) approach to the spin-orbit interaction (SOI) is implemented within a density-functional theory framework. Its performance is examined by applying it to the calculation of the magnetocrystalline ...
Large effect of metal substrate on magnetic anisotropy of Co on hexagonal boron nitride
(IOP Publishing, 2019-07-29)
We combine x-ray absorption spectroscopy (XAS), x-raymagnetic circular dichroism (XMCD) and x-ray magnetic linear dichroism (XMLD) data with first principles density functional theory (DFT) calculations and amultiorbital ...
Light−Matter Response in Nonrelativistic Quantum Electrodynamics
(American Chemical Society, 2019-11)
We derive the full linear-response theory for nonrelativistic quantum electrodynamics in the long wavelength limit and provide a practical framework to solve the resulting equations by using quantum-electrodynamical ...
Possible experimental realization of a basicZ2topological semimetal in GaGeTe
(American Institute of Physics, 2019-12-01)
We report experimental and theoretical evidence that GaGeTe is a basic Z(2) topological semimetal with three types of charge carriers: bulk-originated electrons and holes as well as surface state electrons. This electronic ...
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 ...
Magnetic properties of Co on different environments
(2019-11-04)
We combine density functional theory (DFT) calculations and a multiorbital many-body Hamiltonian approach to shed light on magnetic properties of Co adsorbed on h-BN depending on the adsorption site. These methods reveal ...
First principles simulations of sodium-based battery materials.
(2019-11-14)
Las baterías de sodio son un grupo prometedor de dispositivos de almacenamiento de energía eléctrica para aplicaciones donde el peso y volumen de la batería no es tan importante, por ejemplo en baterías estacionarias para ...
Equilibrium and transport properties of hybrid junctions between superconductors and spin active materials
(2019-11-27)
En esta tesis investigamos la evolución del estado singlete de un material superconductor convencional debido a campos dependientes del espín a su alrededor.