Conductance oscillations of core-shell nanowires in transversal magnetic fields. Manolescu, A., Nemnes, G. A., Sitek, A., Rosdahl, T. O., Erlingsson, S. I., & Gudmundsson, V. Phys. Rev. B, 93:205445, American Physical Society, May, 2016.
Conductance oscillations of core-shell nanowires in transversal magnetic fields [link]Paper  doi  abstract   bibtex   
We analyze theoretically electronic transport through a core-shell nanowire in the presence of a transversal magnetic field. We calculate the conductance for a variable coupling between the nanowire and the attached leads and show how the snaking states, which are low-energy states localized along the lines of the vanishing radial component of the magnetic field, manifest their existence. In the strong-coupling regime they induce flux periodic, Aharonov-Bohm-like, conductance oscillations, which, by decreasing the coupling to the leads, evolve into well-resolved peaks. The flux periodic oscillations arise due to interference of the snaking states, which is a consequence of backscattering at either the contacts with leads or magnetic or potential barriers in the wire.
@article{PhysRevB.93.205445,
  title = {Conductance oscillations of core-shell nanowires in transversal magnetic fields},
  author = {Manolescu, Andrei and Nemnes, George Alexandru and Sitek, Anna and Rosdahl, Tomas Orn and Erlingsson, Sigurdur Ingi and Gudmundsson, Vidar},
  journal = {Phys. Rev. B},
  volume = {93},
  issue = {20},
  pages = {205445},
  numpages = {6},
  year = {2016},
  month = {May},
  publisher = {American Physical Society},
  doi = {10.1103/PhysRevB.93.205445},
  arxiv = {http://arxiv.org/abs/1601.01477},
  url = {http://link.aps.org/doi/10.1103/PhysRevB.93.205445},
  abstract = {We analyze theoretically electronic transport through a core-shell nanowire in the presence of a transversal magnetic field. We calculate the conductance for a variable coupling between the nanowire and the attached leads and show how the snaking states, which are low-energy states localized along the lines of the vanishing radial component of the magnetic field, manifest their existence. In the strong-coupling regime they induce flux periodic, Aharonov-Bohm-like, conductance oscillations, which, by decreasing the coupling to the leads, evolve into well-resolved peaks. The flux periodic oscillations arise due to interference of the snaking states, which is a consequence of backscattering at either the contacts with leads or magnetic or potential barriers in the wire.}
}
Downloads: 0