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Optical conductivity of a quantum electron gas in a Sierpinski carpet
Edo van Veen, Andrea Tomadin, Marco Polini +2
Recent advances in nanofabrication methods have made it possible to create complex two-dimensional artificial structures, such as fractals, where electrons can be confined. The opt…
Peculiar metastable structural state in carbon steel
S. A. Murikov, A. V. Shmakov, V. N. Urtsev +4
The kinetics of phase transformations at cooling of carbon steel in dependence on the temperature of preliminary annealing T is studied. It is shown that the cooling from T$…
Hyperhoneycomb boron nitride with anisotropic mechanical, electronic and optical properties
Jin Yu, Lihua Qu, Edo van Veen +2
Boron nitride structures have excellent thermal and chemical stabilities. Based on state-of-art theoretical calculations, we propose a wide gap semiconducting BN crystal with a thr…
Quantum Monte Carlo study of static potential in graphene
N. Yu. Astrakhantsev, V. V. Braguta, M. I. Katsnelson +2
In this paper the interaction potential between static charges in suspended graphene is studied within the quantum Monte Carlo approach. We calculated the dielectric permittivity o…
Observing imperfection in atomic interfaces for van der Waals heterostructures
Aidan. P. Rooney, Aleksey Kozikov, Alexander N. Rudenko +8
Vertically stacked van der Waals heterostructures are a lucrative platform for exploring the rich electronic and optoelectronic phenomena in two-dimensional materials. Their perfor…
Relaxation, thermalization and Markovian dynamics of two spins coupled to a spin bath
Hans De Raedt, Fengping Jin, Mikhail I. Katsnelson +1
It is shown that by fitting a Markovian quantum master equation to the numerical solution of the time-dependent Schrödinger equation of a system of two spin-1/2 particles interacti…