Magnetic field induced vortices in graphene quantum dots
作者： I R Lavor , D R da Costa , A Chaves , G A Farias , R Macêdo
关键词: Magnetic field 、 Quantum dot 、 Graphene 、 Probability density function 、 Vortex 、 Current (fluid) 、 Superconductivity 、 Condensed matter physics 、 Physics 、 Mesoscopic physics
摘要: The energy spectrum and local current patterns in graphene quantum dots are investigated for different geometries the presence of an external perpendicular magnetic field. Our results demonstrate that, specific edge configurations, dot exhibits vortex anti-vortex density, close analogy to observed probability density semiconductor dots, as well order parameter mesoscopic superconductors.
scilit.net参考文章(56)
J. B. Ketterson, S. N. Song, Superconductivity: List of mathematical and physical symbols ,(1999) , 10.1017/CBO9781139171090
Liviu F. Chibotaru, Arnout Ceulemans, Vital Bruyndoncx, Victor V. Moshchalkov, Symmetry-induced formation of antivortices in mesoscopic superconductors. Nature. ,vol. 408, pp. 833- 835 ,(2000) , 10.1038/35048521
Michele Governale, Carlo Ungarelli, Gauge-invariant grid discretization of the Schrödinger equation Physical Review B. ,vol. 58, pp. 7816- 7821 ,(1998) , 10.1103/PHYSREVB.58.7816
Z. Z. Zhang, Kai Chang, F. M. Peeters, Tuning of energy levels and optical properties of graphene quantum dots Physical Review B. ,vol. 77, pp. 235411- ,(2008) , 10.1103/PHYSREVB.77.235411
F.M Peeters, V.A Schweigert, B.J Baelus, P.S Deo, Vortex matter in mesoscopic superconducting disks and rings Physica C-superconductivity and Its Applications. ,vol. 332, pp. 255- 262 ,(2000) , 10.1016/S0921-4534(99)00681-4
Bo Chen, W. P. Halperin, Prasenjit Guptasarma, D. G. Hinks, V. F. Mitrović, A. P. Reyes, P. L. Kuhns, Two-dimensional vortices in superconductors Nature Physics. ,vol. 3, pp. 239- 242 ,(2007) , 10.1038/NPHYS540
L. F. Chibotaru, A. Ceulemans, V. Bruyndoncx, V. V. Moshchalkov, Vortex entry and nucleation of antivortices in a mesoscopic superconducting triangle. Physical Review Letters. ,vol. 86, pp. 1323- 1326 ,(2001) , 10.1103/PHYSREVLETT.86.1323
R. Peierls, Zur Theorie des Diamagnetismus von Leitungselektronen European Physical Journal. ,vol. 80, pp. 763- 791 ,(1933) , 10.1007/BF01342591
H. J. Zhao, V. R. Misko, F. M. Peeters, S. Dubonos, V. Oboznov, I. V. Grigorieva, Vortex configurations in mesoscopic superconducting triangles : Finite-size and shape effects EPL. ,vol. 83, pp. 17008- ,(2008) , 10.1209/0295-5075/83/17008
M Ramezani Masir, A Matulis, FM Peeters, None, Scattering of Dirac electrons by circular mass barriers: valley filter and resonant scattering Physical Review B. ,vol. 84, pp. 245413- ,(2011) , 10.1103/PHYSREVB.84.245413