Persistent currents in Dirac fermion rings
| hal.structure.identifier | Laboratoire Ondes et Matière d'Aquitaine [LOMA] | |
| hal.structure.identifier | Max-Planck-Institut für Physik komplexer Systeme [MPI-PKS] | |
| dc.contributor.author | STICLET, Doru | |
| hal.structure.identifier | Department of Physics [Budapest] | |
| hal.structure.identifier | BME-MTA Exotic Quantum Phases Research Group | |
| dc.contributor.author | DÓRA, Balázs | |
| hal.structure.identifier | Laboratoire Ondes et Matière d'Aquitaine [LOMA] | |
| hal.structure.identifier | Max-Planck-Institut für Physik komplexer Systeme [MPI-PKS] | |
| dc.contributor.author | CAYSSOL, Jérôme | |
| dc.date.created | 2013-07-31 | |
| dc.date.issued | 2013 | |
| dc.identifier.issn | 1098-0121 | |
| dc.description.abstractEn | The persistent current in strictly one-dimensional Dirac systems is investigated within two different models, defined in the continuum and on a lattice, respectively. The object of the study is the effect of a single magnetic or nonmagnetic impurity in the two systems. In the continuum Dirac model, an analytical expression for the persistent current flowing along a ring with a single delta-like magnetic impurity is obtained after regularization of the unbounded negative energy states. The predicted decay of the persistent agrees with the lattice simulations. The results are generalized to finite temperatures. To realize a single Dirac massless fermion, the lattice model breaks the time-reversal symmetry, and, in contrast with the continuum model, a pointlike nonmagnetic impurity can lead to a decay in the persistent current. | |
| dc.description.sponsorship | Transport électronique dans les isolants topologiques - ANR-10-BLAN-0419 | |
| dc.language.iso | en | |
| dc.publisher | American Physical Society | |
| dc.subject.en | Persistent currents | |
| dc.subject.en | Electron states and collective excitations in multilayers | |
| dc.subject.en | Electronic transport in nanoscale materials and structures | |
| dc.subject.en | quantum wells | |
| dc.subject.en | mesoscopic and nanoscale systems | |
| dc.title.en | Persistent currents in Dirac fermion rings | |
| dc.type | Article de revue | |
| dc.identifier.doi | 10.1103/PhysRevB.88.205401 | |
| dc.subject.hal | Physique [physics]/Matière Condensée [cond-mat] | |
| dc.identifier.arxiv | 1307.6964 | |
| dc.description.sponsorshipEurope | TOPOLOGICAL EFFECTS IN MATTER WITH STRONG SPIN-ORBIT COUPLING | |
| dc.description.sponsorshipEurope | Spin dynamics and transport at the quantum edge in low dimensional nanomaterials | |
| bordeaux.journal | Physical Review B: Condensed Matter and Materials Physics (1998-2015) | |
| bordeaux.page | 205401 | |
| bordeaux.volume | 88 | |
| bordeaux.issue | 20 | |
| bordeaux.peerReviewed | oui | |
| hal.identifier | hal-00910687 | |
| hal.version | 1 | |
| hal.origin.link | https://hal.archives-ouvertes.fr//hal-00910687v1 | |
| bordeaux.COinS | ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Physical%20Review%20B:%20Condensed%20Matter%20and%20Materials%20Physics%20(1998-2015)&rft.date=2013&rft.volume=88&rft.issue=20&rft.spage=205401&rft.epage=205401&rft.eissn=1098-0121&rft.issn=1098-0121&rft.au=STICLET,%20Doru&D%C3%93RA,%20Bal%C3%A1zs&CAYSSOL,%20J%C3%A9r%C3%B4me&rft.genre=article |
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