• 文献标题:   Lorentz force effects for graphene Aharonov-Bohm interferometers
  • 文献类型:   Article
  • 作  者:   MRENCAKOLASINSKA A, SZAFRAN B
  • 作者关键词:  
  • 出版物名称:   PHYSICAL REVIEW B
  • ISSN:   2469-9950 EI 2469-9969
  • 通讯作者地址:   AGH Univ Sci Technol
  • 被引频次:   8
  • DOI:   10.1103/PhysRevB.94.195315
  • 出版年:   2016

▎ 摘  要

We investigate magnetic deflection of currents that flow across the Aharonov-Bohm interferometers defined in graphene. We consider devices induced by closed n-p junctions in nanoribbons as well as etched quantum rings. The deflection effects on conductance are strictly correlated with the properties of the ring-localized quasibound states. The energy of these states, their lifetime, and the periodicity of the conductance oscillations are determined by orientation of the current circulating within the interferometer. The formation of high harmonics of conductance at high magnetic field and the role of intervalley scattering are discussed.