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Magnetotransport properties of graphene layers decorated with colloid quantum dots

Zhu, Ri Jia ; Huang, Yu Qing ; Li, Jia Yu ; Kang, Ning and Xu, Hong Qi LU (2019) In Chinese Physics B 28(6).
Abstract

The hybrid graphene-quantum dot devices can potentially be used to tailor the electronic, optical, and chemical properties of graphene. Here, the low temperature electronic transport properties of bilayer graphene decorated with PbS colloid quantum dots (CQDs) have been investigated in the weak or strong magnetic fields. The presence of the CQDs introduces additional scattering potentials that alter the magnetotransport properties of the graphene layers, leading to the observation of a new set of magnetoconductance oscillations near zero magnetic field as well as the high-field quantum Hall regime. The results bring about a new strategy for exploring the quantum interference effects in two-dimensional materials which are sensitive to... (More)

The hybrid graphene-quantum dot devices can potentially be used to tailor the electronic, optical, and chemical properties of graphene. Here, the low temperature electronic transport properties of bilayer graphene decorated with PbS colloid quantum dots (CQDs) have been investigated in the weak or strong magnetic fields. The presence of the CQDs introduces additional scattering potentials that alter the magnetotransport properties of the graphene layers, leading to the observation of a new set of magnetoconductance oscillations near zero magnetic field as well as the high-field quantum Hall regime. The results bring about a new strategy for exploring the quantum interference effects in two-dimensional materials which are sensitive to the surrounding electrostatic environment, and open up a new gateway for exploring the graphene sensing with quantum interference effects.

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author
; ; ; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Aharonov-Bohm oscillations, Colloid quantum dots, Graphene, Quantum Hall effect
in
Chinese Physics B
volume
28
issue
6
article number
067201
publisher
IOP Publishing
external identifiers
  • scopus:85069701912
ISSN
1674-1056
DOI
10.1088/1674-1056/28/6/067201
language
English
LU publication?
yes
id
ac61f062-7063-4856-80f2-8c60651eadd2
date added to LUP
2019-08-26 13:57:34
date last changed
2023-10-21 17:56:30
@article{ac61f062-7063-4856-80f2-8c60651eadd2,
  abstract     = {{<p>The hybrid graphene-quantum dot devices can potentially be used to tailor the electronic, optical, and chemical properties of graphene. Here, the low temperature electronic transport properties of bilayer graphene decorated with PbS colloid quantum dots (CQDs) have been investigated in the weak or strong magnetic fields. The presence of the CQDs introduces additional scattering potentials that alter the magnetotransport properties of the graphene layers, leading to the observation of a new set of magnetoconductance oscillations near zero magnetic field as well as the high-field quantum Hall regime. The results bring about a new strategy for exploring the quantum interference effects in two-dimensional materials which are sensitive to the surrounding electrostatic environment, and open up a new gateway for exploring the graphene sensing with quantum interference effects.</p>}},
  author       = {{Zhu, Ri Jia and Huang, Yu Qing and Li, Jia Yu and Kang, Ning and Xu, Hong Qi}},
  issn         = {{1674-1056}},
  keywords     = {{Aharonov-Bohm oscillations; Colloid quantum dots; Graphene; Quantum Hall effect}},
  language     = {{eng}},
  number       = {{6}},
  publisher    = {{IOP Publishing}},
  series       = {{Chinese Physics B}},
  title        = {{Magnetotransport properties of graphene layers decorated with colloid quantum dots}},
  url          = {{http://dx.doi.org/10.1088/1674-1056/28/6/067201}},
  doi          = {{10.1088/1674-1056/28/6/067201}},
  volume       = {{28}},
  year         = {{2019}},
}