The Unconventional Transport Properties of Dirac Fermions in Graphyne

被引：5

作者：

Lin Xin ^{[1
]}

Wang Hai-Long ^{[1
]}

Pan Hui ^{[1
]}

Xu Huai-Zhe ^{[1
]}

机构：

[1] Beihang Univ, Dept Phys, State Key Lab Software Dev Environm, Beijing 100191, Peoples R China

来源：

CHINESE PHYSICS LETTERS | 2013年 / 30卷 / 07期

基金：

中国国家自然科学基金;

关键词：

BERRYS PHASE; CARBON;

D O I：

10.1088/0256-307X/30/7/077305

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

A two-band Hamiltonian for beta-graphyne is derived by the k.p method. The energy dispersions around the Dirac points are analytically obtained depending on the relative amplitude of the hopping terms t(1)/t(2), and the Dirac cones are elliptical when -2 < t(1)/t(2) < -1. This anisotropic Dirac Hamiltonian leads to electron current direction misalignment with the wave vector, and the transmission spectrum is asymmetric about the incident angle of current, j. This interesting feature is useful for direction-dependent wave filter devices.

引用

页数：4

共 50 条

[41] Unconventional transport properties in systems with triply degenerate quadratic band crossings [J].

Liu, Zhihai ;

Wang, Luyang ;

Yao, Dao-Xin .

PHYSICAL REVIEW B, 2024, 109 (11)

[42] Traits and characteristics of interacting Dirac fermions in monolayer and bilayer graphene [J].

Chakraborty, Tapash ;

Apalkov, Vadim M. .

SOLID STATE COMMUNICATIONS, 2013, 175 :123-131

[43] Magnetoconductivity of Dirac fermions in graphene under charged impurity scatterings [J].

Yan, Xin-Zhong ;

Ting, C. S. .

NEW JOURNAL OF PHYSICS, 2009, 11

[44] Magnetic Manipulation of Massless Dirac Fermions in Graphene Quantum Dot [J].

Lin Xin ;

Pan Hui ;

Xu Huai-Zhe .

COMMUNICATIONS IN THEORETICAL PHYSICS, 2010, 54 (06) :1134-1138

[45] Electronic Properties of α-graphyne Nanoribbon with Vacancies [J].

Divdel, Saeideh ;

Khodadadi, Abolfazl ;

Niazian, Mohammad Reza ;

Yadollahi, Ali Mohammad ;

Samavati, Katayoon .

SEMICONDUCTORS, 2024, 58 (08) :651-667

[46] Hot carrier relaxation of Dirac fermions in bilayer epitaxial graphene [J].

Huang, J. ;

Alexander-Webber, J. A. ;

Janssen, T. J. B. M. ;

Tzalenchuk, A. ;

Yager, T. ;

Lara-Avila, S. ;

Kubatkin, S. ;

Myers-Ward, R. L. ;

Wheeler, V. D. ;

Gaskill, D. K. ;

Nicholas, R. J. .

JOURNAL OF PHYSICS-CONDENSED MATTER, 2015, 27 (16)

[47] Magnetic and electronic properties of α-graphyne nanoribbons [J].

Yue, Qu ;

Chang, Shengli ;

Kang, Jun ;

Tan, Jichun ;

Qin, Shiqiao ;

Li, Jingbo .

JOURNAL OF CHEMICAL PHYSICS, 2012, 136 (24)

[48] Layer dependent optical properties of γ-graphyne [J].

Ali, Sajid ;

Ali, Basit ;

Abdulkarim, Sani ;

Sun, Mengtao .

CHEMICAL PHYSICS, 2025, 598

[49] Effect of Biaxial Strain on Structural, Electronic, and Thermal Transport Properties of Twin Graphene: A Comparative Study with γ-graphyne [J].

Li, Wentao .

JOURNAL OF ELECTRONIC MATERIALS, 2025, 54 (01) :693-702

[50] Effect of In-Plane Biaxial Strain on the Dirac Cone in α-Graphyne and Band Gap in α-BNyne [J].

Behzad, Somayeh .

JOURNAL OF ELECTRONIC MATERIALS, 2018, 47 (09) :5601-5606

← 1 2 3 4 5 →