Home      Library      Discussions      About
Join us

@ua.ac.be

Feb 07, 2019
Databases
Data Structures and Algorithms

Probably the Best Itemsets

One of the main current challenges in itemset mining is to discover a small set of high-quality itemsets. In this paper we propose a new and general …
Sep 10, 2010
Mesoscale and Nanoscale Physics

Electronic and magnetic properties of superlattices of graphene/graph…

Zigzag graphene nanoribbons patterned on graphane are studied using spin-polarized ab initio calculations. We found that the electronic and magnetic …
Jun 19, 2012

Layout of Wilson lines and light-cone peculiarities of transverse-m…

We consider the problems of gauge invariance, path-dependence and treatment of overlapping UV/rapidity divergences peculiar to the transverse-momentu…
Nov 14, 2011
Mesoscale and Nanoscale Physics

Scattering of Dirac electrons by circular mass barriers: valley filte…

The scattering of two-dimensional (2D) massless Dirac electrons is investigated in the presence of a random array of circular mass barriers. The inve…
Jun 08, 2007
Superconductivity

Rearrangement of the vortex lattice due to instabilities of vortex fl…

With increasing applied current we show that the moving vortex lattice changes its structure from a triangular one to a set of parallel vortex rows i…
Oct 09, 2007
Materials Science

The charge transfer between the considered adsorbates and graphene is found to be almost independent on the adsorption site but it does depend strongly on the orientation of the adsorbate with respect to the graphene surface. We compared two paramag…

Adsorption of H2O, NH3, CO, NO2, and NO on graphene: A first-principl…

Motivated by the recent realization of graphene sensors to detect individual gas molecules, we investigate the adsorption of H2O, NH3, CO, NO2, and N…
May 17, 2010
Superconductivity

Vortex matter in mesoscopic two-gap superconducting disks: influence …

The effects of the coupling between two electronic condensates in two-gap mesoscopic superconductors are studied within the Ginzburg-Landau theory us…
Apr 17, 2019
Databases
Machine Learning

Sequential pattern discovery is a well-studied field in data mining. Episodes are sequential patterns describing events that often occur in the vicinity of each other. Episodes can impose restrictions to the order of the events, which makes them a v…

Mining Closed Episodes with Simultaneous Events

Sequential pattern discovery is a well-studied field in data mining. Episodes are sequential patterns describing events that often occur in the vicin…
Nov 28, 2009
Statistical Mechanics

The q-exponential family in statistical physics

The Boltzmann-Gibbs probability distribution, seen as a statistical model, belongs to the exponential family. Recently, the latter concept has been g…
Jun 19, 2012
Superconductivity

Spatially-dependent sensitivity of superconducting meanders as sing…

The photo-response of a thin current-carrying superconducting stripe with a 90-degree turn is studied within the time-dependent Ginzburg-Landau theor…
May 28, 2014
Optics
Materials Science

A new way of producing electron vortex probes for STEM

A spiral holographic aperture is used in the condensor plane of a scanning transmission electron microscope to produce a focussed electron vortex pro…
Dec 23, 2011
Materials Science

Theory of rigid-plane phonon modes in layered crystals

The lattice dynamics of low-frequency rigid-plane modes in metallic (graphene multilayers, GML) and in insulating (hexagonal boron-nitride multilayer…
Dec 20, 2010
Numerical Analysis

A preconditioned iterative solver for the scattering solutions of the…

The Schr\"odinger equation defines the dynamics of quantum particles which has been an area of unabated interest in physics. We demonstrate how simpl…
Oct 05, 2012

Cusped light-like Wilson loops in gauge theories

We propose and discuss a new approach to the analysis of the correlation functions which contain light-like Wilson lines or loops, the latter being c…
Aug 26, 2012
Numerical Analysis

Stability and convergence analysis of discretizations of the Black-…

In this paper we consider the stability and convergence of numerical discretizations of the Black-Scholes partial differential equation (PDE) when co…
Mar 15, 2011
Materials Science
Strongly Correlated Electrons

Spiral ground state against ferroelectricity in the frustrated magnet…

The spiral magnetic structure and underlying spin lattice of BiMnFe2O6 are investigated by low-temperature neutron powder diffraction and density fun…
Jun 22, 2012
Mesoscale and Nanoscale Physics

Electron-phonon bound states in graphene in a perpendicular magnetic …

The spectrum of electron-phonon complexes in a monolayer graphene is investigated in the presence of a perpendicular quantizing magnetic field. Despi…
Aug 08, 2012
Superconductivity

Unconventional vortex states in nanoscale superconductors due to sh…

Vortex matter in mesoscopic superconductors is known to be strongly affected by the geometry of the sample. Here we show that in nanoscale supercondu…
Apr 11, 2012
Materials Science
Strongly Correlated Electrons

Short-range order of Br and three-dimensional magnetism in (CuBr)LaNb…

We present a comprehensive study of the crystal structure, magnetic structure, and microscopic magnetic model of (CuBr)LaNb2O7, the Br analog of the …
Jul 20, 2013
Materials Science

Stone-Wales Defects in Silicene: Formation, Stability and Reactivity …

During the synthesis of ultra-thin materials with hexagonal lattice structure Stone-Wales (SW) type of defects are quite likely to be formed and the …
There aren't more papers

Request Comment

or Invite via email
You are asking your first question!
How to quickly get a good answer:
  • Keep your question short and to the point
  • Check for grammar or spelling errors.
  • Phrase it like a question
Test
Test description