Zobrazeno 1 - 10
of 417
pro vyhledávání: '"Jauho Antti-Pekka"'
Grain boundaries play a major role for electron transport in graphene sheets grown by chemical vapor deposition. Here we investigate the electronic structure and transport properties of idealized graphene grain boundaries (GBs) in bi-crystals using f
Externí odkaz:
http://arxiv.org/abs/2401.06556
Publikováno v:
EPJ Web of Conferences, Vol 233, p 03005 (2020)
We consider the problem of the radiation losses by fast-traveling particles traversing two-dimensional (2d) materials or thin films. After review¬ing the screening of electromagnetic fields by two dimensional conducting ma¬terials, we obtain the en
Externí odkaz:
https://doaj.org/article/07a9d1944a3a49e2b8819505a5a8fc6d
Autor:
Svaneborg, Jakob Kjærulff, Lorentzen, Aleksander Bach, Gao, Fei, Jauho, Antti-Pekka, Brandbyge, Mads
Terahertz (THz) field pulses can now be applied in Scanning Tunnelling Microscopy (THz-STM) junction experiments to study time resolved dynamics. The relatively slow pulse compared to the typical electronic time-scale calls for approximations based o
Externí odkaz:
http://arxiv.org/abs/2308.12076
Autor:
Toscano Giuseppe, Raza Søren, Yan Wei, Jeppesen Claus, Xiao Sanshui, Wubs Martijn, Jauho Antti-Pekka, Bozhevolnyi Sergey I., Mortensen N. Asger
Publikováno v:
Nanophotonics, Vol 2, Iss 3, Pp 161-166 (2013)
We present a novel wave equation for linearized plasmonic response, obtained by combining the coupled real-space differential equations for the electric field and current density. Nonlocal dynamics are fully accounted for, and the formulation is very
Externí odkaz:
https://doaj.org/article/2b91605ea28c419c9ffcfc279b162121
Autor:
Raza Søren, Stenger Nicolas, Kadkhodazadeh Shima, Fischer Søren V., Kostesha Natalie, Jauho Antti-Pekka, Burrows Andrew, Wubs Martijn, Mortensen N. Asger
Publikováno v:
Nanophotonics, Vol 2, Iss 2, Pp 131-138 (2013)
We study the surface plasmon (SP) resonance energy of isolated spherical Ag nanoparticles dispersed on a silicon nitride substrate in the diameter range 3.5–26 nm with monochromated electron energy-loss spectroscopy. A significant blueshift of the
Externí odkaz:
https://doaj.org/article/ca7387d569de45c981213f246b38a5d3
Autor:
Jones, Alfred J. H., Gammelgaard, Lene, Sauer, Mikkel O., Biswas, Deepnarayan, Koch, Roland J., Jozwiak, Chris, Rotenberg, Eli, Bostwick, Aaron, Watanabe, Kenji, Taniguchi, Takashi, Dean, Cory R., Jauho, Antti-Pekka, Bøggild, Peter, Pedersen, Thomas G., Jessen, Bjarke S., Ulstrup, Søren
Publikováno v:
ACS Nano 2022, 16, 11, 19354-19362
Massive Dirac fermions are low-energy electronic excitations characterized by a hyperbolic band dispersion. They play a central role in several emerging physical phenomena such as topological phase transitions, anomalous Hall effects and superconduct
Externí odkaz:
http://arxiv.org/abs/2212.08958
Josephson junctions based on quantum dots offer a convenient tunability by means of local gates. Here we analyze a Josephson junction based on a serial double quantum dot in which the two dots are individually gated by phase-shifted microwave tones o
Externí odkaz:
http://arxiv.org/abs/2207.06152
Autor:
Roche, Stephan, Power, Stephen R., Nikolić, Branislav K., García, José Hugo, Jauho, Antti-Pekka
We provide a critical discussion concerning the claim of topological valley currents, driven by a global Berry curvature and valley Hall effect proposed in recent literature. After pointing out a major inconsistency of the theoretical scenario propos
Externí odkaz:
http://arxiv.org/abs/2111.08506
Publikováno v:
Phys. Rev. Research 2, 043427 (2020)
Encapsulating graphene in hexagonal Boron Nitride has several advantages: the highest mobilities reported to date are achieved in this way, and precise nanostructuring of graphene becomes feasible through the protective hBN layers. Nevertheless, subt
Externí odkaz:
http://arxiv.org/abs/2011.13014
Publikováno v:
Phys. Rev. Research 2, 032074(R) (2020)
The Josephson current is investigated in a superconducting graphene bilayer where pristine graphene sheets can make in-plane or out-of-plane displacements with respect to each other. The superconductivity can be of an intrinsic nature, or due to a pr
Externí odkaz:
http://arxiv.org/abs/2009.10730