1.7k citations · 14.3k across the 258 of their papers we have counts for
19 papers · 1 filter
Strain-induced band gaps in bilayer graphene
B. Verberck, B. Partoens, F. M. Peeters +1
We present a tight-binding investigation of strained bilayer graphene within linear elasticity theory, focusing on the different environments experienced by the A and B carbon atom…
Superconducting proximity effect in graphene under inhomogeneous strain
Lucian Covaci, Francois Peeters
The interplay between quantum Hall states and Cooper pairs is usually hindered by the suppression of the superconducting state due to the strong magnetic fields needed to observe t…
BCS-BEC crossover-like phenomena driven by quantum-size effects in quasi-one-dimensional fermionic condensates
A. A. Shanenko, M. D. Croitoru, A. V. Vagov +3
Quantum confinement is known to influence fermionic condensates, resulting in quantum-size oscillations of superfluid/superconducting properties. Here we show that the impact of qu…
Fano resonances and electron spin transport through a two-dimensional spin-orbit-coupled quantum ring
M. P. Nowak, B. Szafran, F. M. Peeters
Electron transport through a spin-orbit-coupled quantum ring is investigated within linear response theory. We show that the finite width of the ring results in the appearance of F…
Enhancement of the retrapping current of superconducting microbridges of finite length
D. Y. Vodolazov, F. M. Peeters
We theoretically find that the resistance of a superconducting microbridge/nanowire {\it decreases} while the retrapping current for the transition to the superconducting sta…
Extended Ginzburg-Landau formalism: systematic expansion in small deviation from the critical temperature
A. V. Vagov, A. A. Shanenko, M. V. Milošević +2
Based on the Gor'kov formalism for a clean s-wave superconductor, we develop an extended version of the single-band Ginzburg-Landau (GL) theory by means of a systematic expansion i…
First-principles investigation of bilayer fluorographene
Jozef Sivek, Ortwin Leenaerts, Bart Partoens +1
\textit{Ab initio} calculations within the density functional theory formalism are performed to investigate the stability and electronic properties of fluorinated bilayer graphene…
Pattern formation and phase transitions in systems with non-monotonic interaction
H. J. Zhao, V. R. Misko, F. M. Peeters
We analyzed pattern formation and identified different phases in a system of particles interacting through a non-monotonic short-range repulsive (r<r_c) and long-range attractive (…
Formation of multi-quanta vortices in superconductors: electronic, calorimetric and magnetic evidence
Ben Xu, M. V. Milošević, Shi-Hsin Lin +2
The ground state with vorticity larger than one in mesoscopic superconductors in applied magnetic field may manifest as a `giant'-vortex, where all vortices coalesce into a single…
Different length-scales for order parameters in two-gap superconductors: the extended Ginzburg-Landau theory
L. Komendová, M. V. Milošević, A. A. Shanenko +1
Using the Ginzburg-Landau theory extended to the next-to-leading order we determine numerically the healing lengths of the two order parameters at the two-gap superconductor/normal…
Heating of quasiparticles driven by oscillations of the order parameter in short superconducting microbridges
D. Y. Vodolazov, F. M. Peeters
We predict 'heating' of quasiparticles driven by order parameter oscillations in the resistive state of short superconducting microbridges. The finite relaxation time of the magnit…
Lattice thermal properties of Graphane: thermal contraction, roughness and heat capacity
M. Neek-Amal, F. M. Peeters
Using atomistic simulations we determine the roughness and the thermal properties of a suspended graphane sheet. As compared to graphene we found that hydrogenated graphene has: 1)…
Conditions for non-monotonic vortex interaction in two-band superconductors
A. Chaves, L. Komendová, M. V. Milošević +3
We describe a semi-analytic approach to the two-band Ginzburg-Landau theory, which predicts the behavior of vortices in two-band superconductors. We show that the character of the…
Wave packet dynamics and valley filter in strained graphene
Andrey Chaves, L. Covaci, Kh. Yu. Rakhimov +2
The time evolution of a wavepacket in strained graphene is studied within the tight-binding model and continuum model. The effect of an external magnetic field, as well as a strain…
Tuning of the spin-orbit interaction in a quantum dot by an in-plane magnetic field
M. P. Nowak, B. Szafran, F. M. Peeters +2
Using an exact diagonalization approach we show that one- and two-electron InAs quantum dots exhibit avoided crossing in the energy spectra that are induced by the spin-orbit coupl…
Single-layer and bilayer graphene superlattices: collimation, additional Dirac points and Dirac lines
M. Barbier, P. Vasilopoulos, F. M. Peeters
We review the energy spectrum and transport properties of several types of one- dimensional superlattices (SLs) on single-layer and bilayer graphene. In single-layer graphene, for…
Kronig-Penney model on bilayer graphene: spectrum and transmission periodic in the strength of the barriers
M. Barbier, P. Vasilopoulos, F. M. Peeters
We show that the transmission through single and double δ-function potential barriers of strength P in bilayer graphene is periodic in P with period π. For a certain range of P val…
Bilayer graphene with single and multiple electrostatic barriers: band structure and transmission
M. Barbier, P. Vasilopoulos, F. M. Peeters +1
We evaluate the electronic transmission and conductance in bilayer graphene through a finite number of potential barriers. Further, we evaluate the dispersion relation in a bilayer…
Dirac and Klein-Gordon particles in one-dimensional periodic potentials
M. Barbier, F. M. Peeters, P. Vasilopoulos +1
We evaluate the dispersion relation for massless fermions, described by the Dirac equation, and for zero-spin bosons, described by the Klein-Gordon equation, moving in two dimensio…