43 citations · 137 across the 12 of their papers we have counts for
8 papers · 1 filter
Electronic interactions in a vacancy-engineered honeycomb lattice: Transition from a nodal-line semimetal to a magnetic insulator
Andressa R. Medeiros-Silva, Mariana Malard, Rodrigo G. Pereira +1
Nodal-line semimetals (NLSMs) harbor a variety of novel physical properties owing to the particularities of the band degeneracies that characterize the spectrum of these materials.…
Detecting and leaking a Majorana bound state through proximity to a Kitaev ring
Mariana Malard, David S. Brandão
We show that the existence of a Majorana bound state at one end of a Kitaev chain is unambiguously signaled by observable quantities in a nearby Kitaev ring. When the Kitaev chain…
Scaling behavior in a multicritical one-dimensional topological insulator
M. Malard, H. Johannesson, W. Chen
A class of Aubry-André-Harper models of spin-orbit coupled electrons exhibits a topological phase diagram where two regions belonging to the same phase are split up by a multicriti…
Movable but not removable band degeneracies in a symmorphic crystal
Mariana Malard, Paulo Eduardo de Brito, Stellan Ostlund +1
Crossings of energy bands in solids that are not pinned at symmetry points in the Brillouin zone and yet cannot be removed by perturbations are thought to be conditioned on the pre…
Synthesizing Majorana zero-energy modes in a periodically gated quantum wire
Mariana Malard, G. I. Japaridze, Henrik Johannesson
We explore a scheme for engineering a one-dimensional spinless p-wave superconductor hosting unpaired Majorana zero-energy modes, using an all-electric setup with a spin-orbit coup…
Synthetic helical liquid in a quantum wire
George I. Japaridze, Henrik Johannesson, Mariana Malard
We show that the combination of a Dresselhaus interaction and a spatially periodic Rashba interaction leads to the formation of a helical liquid in a quantum wire when the electron…
Sine-Gordon Model - Renormalization Group Solutions and Applications
Mariana Malard
The sine-Gordon model is discussed and analyzed within the framework of the renormalization group theory. A perturbative renormalization group procedure is carried out through a de…
Modulated Rashba interaction in a quantum wire: Spin and charge dynamics
Mariana Malard, Inna Grusha, G. I. Japaridze +1
It was recently shown that a spatially modulated Rashba spin-orbit coupling in a quantum wire drives a transition from a metallic to an insulating state when the wave number of the…