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| Author | Petrovic, M.D.; Peeters, F.M.; Chaves, A.; Farias, G.A. | ||||
| Title | Conductance maps of quantum rings due to a local potential perturbation | Type | A1 Journal article | ||
Year  |
2013 | Publication | Journal of physics : condensed matter | Abbreviated Journal | J Phys-Condens Mat |
| Volume | 25 | Issue | 49 | Pages | 495301-495309 |
| Keywords | A1 Journal article; Condensed Matter Theory (CMT) | ||||
| Abstract | We performed a numerical simulation of the dynamics of a Gaussian shaped wavepacket inside a small sized quantum ring, smoothly connected to two leads and exposed to a perturbing potential of a biased atomic force microscope tip. Using the Landauer formalism, we calculated conductance maps of this system in the case of single and two subband transport. We explain the main features in the conductance maps as due to the AFM tip influence on the wavepacket phase and amplitude. In the presence of an external magnetic field, the tip modifies the phi(0) periodic Aharonov-Bohm oscillation pattern into a phi(0)/2 periodic Al'tshuler-Aronov-Spivak oscillation pattern. Our results in the case of multiband transport suggest tip selectivity to higher subbands, making them more observable in the total | ||||
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| Corporate Author | Thesis | ||||
| Publisher | Place of Publication | London | Editor | ||
| Language | Wos | 000327181400002 | Publication Date | 2013-11-01 | |
| Series Editor | Series Title | Abbreviated Series Title | |||
| Series Volume | Series Issue | Edition | |||
| ISSN | 0953-8984;1361-648X; | ISBN | Additional Links | UA library record; WoS full record; WoS citing articles | |
| Impact Factor | 2.649 | Times cited | 12 | Open Access | |
| Notes | ; This work was supported by the Methusalem programme of the Flemish government, the CNPq-FWO bilateral programme and PNPD and FUNCAP/PRONEX grants. ; | Approved | Most recent IF: 2.649; 2013 IF: 2.223 | ||
| Call Number | UA @ lucian @ c:irua:112694 | Serial | 478 | ||
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