Integer and half-integer quantum Hall effect in silicene: Influence of an external electric field and impurities

被引：32

作者：

Shakouri, Kh. ^{[1
]}

Vasilopoulos, P. ^{[2
]}

Vargiamidis, V. ^{[2
]}

Peeters, F. M. ^{[1
]}

机构：

[1] Univ Antwerp, Dept Fys, B-2020 Antwerp, Belgium

[2] Concordia Univ, Dept Phys, Montreal, PQ H4B 1R6, Canada

来源：

PHYSICAL REVIEW B | 2014年 / 90卷 / 23期

基金：

加拿大自然科学与工程研究理事会;

关键词：

DIRAC FERMIONS;

D O I：

10.1103/PhysRevB.90.235423

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The influence of silicene's strong spin-orbit interaction and of an external electric field E-z on the transport coefficients are investigated in the presence of a perpendicular magnetic field B. For finite E-z the spin and valley degeneracy of the Landau levels is lifted and leads to additional plateaus in the Hall conductivity, at half-integer values of 4e(2)/h, due to spin intra-Landau-level transitions that are absent in graphene. These plateaus are more sensitive to disorder and thermal broadening than the main plateaus, occurring at integral values of 4e(2)/h, when the Fermi level passes through the Landau levels. We also evaluate the Hall and longitudinal resistivities and critically contrast the results with those for graphene on a substrate.

引用

页数：9

共 50 条

[31] Half-integer flux quantum effect in cuprate superconductors - A probe of pairing symmetry
Tsuei, CC
Kirtley, JR
Gupta, A
Sun, JZ
Moler, KA
Ren, ZF
Wang, JH
[J]. PHYSICA SCRIPTA, 1996, T66 : 212 - 214
[32] Theory of Disorder-Induced Half-Integer Thermal Hall Conductance
Mross, David F.
Oreg, Yuval
Stern, Ady
Margalit, Gilad
Heiblum, Moty
[J]. PHYSICAL REVIEW LETTERS, 2018, 121 (02)
[33] Integer and half-integer flux-quantum transitions in a niobium-iron pnictide loop
Chen C.-T.
Tsuei C.C.
Ketchen M.B.
Ren Z.-A.
Zhao Z.X.
[J]. Nature Physics, 2010, 6 (4) : 260 - 264
[34] HALF-INTEGER AND INTEGER QUANTUM-FLUX PERIODS IN THE MAGNETORESISTANCE OF ONE-DIMENSIONAL RINGS
DAMATO, JL
PASTAWSKI, HM
WEISZ, JF
[J]. PHYSICAL REVIEW B, 1989, 39 (06) : 3554 - 3562
[35] Integer and half-integer flux-quantum transitions in a niobium-iron pnictide loop
Chen, C. -T.
Tsuei, C. C.
Ketchen, M. B.
Ren, Z. -A.
Zhao, Z. X.
[J]. NATURE PHYSICS, 2010, 6 (04) : 260 - 264
[36] Half-integer filling-factor states in quantum dots
Harju, A
Saarikoski, H
Räsänen, E
[J]. PHYSICAL REVIEW LETTERS, 2006, 96 (12)
[37] On the nature of the half-integer quantum features on the transport and Hall resistances of 2D electron systems in a quantizing magnetic field
Pashitskii, EA
[J]. LOW TEMPERATURE PHYSICS, 2001, 27 (9-10) : 790 - 799
[38] Dynamics of States with Half-Integer Orbital Momentum in Their Own Field
Chikhachev, A. S.
[J]. PHYSICS OF PARTICLES AND NUCLEI LETTERS, 2023, 20 (05) : 976 - 980
[39] Towards Lagrangian construction for infinite half-integer spin field
Buchbinder, I. L.
Fedoruk, S.
Isaev, A. P.
Krykhtin, V. A.
[J]. NUCLEAR PHYSICS B, 2020, 958
[40] Dynamics of States with Half-Integer Orbital Momentum in Their Own Field
A. S. Chikhachev
[J]. Physics of Particles and Nuclei Letters, 2023, 20 : 976 - 980

← 1 2 3 4 5 →