The influence of the nanostructure geometry on the thermoelectric properties

被引：8
作者：
AL-Badry, Lafy E. [1 ]
机构：
[1] Univ Thi Qar, Coll Sci, Dept Phys, Thi Qar, Iraq
来源：
PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES | 2016年 / 83卷
关键词：
Thermoelectric properties; Fano resonance; Quantum interference; Double quantum dot; QUANTUM-DOT STRUCTURE; MESOSCOPIC RING; ELECTRON-TRANSPORT; GATE;
D O I：
10.1016/j.physe.2016.05.019
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
We discuss the influence of nanostructure geometry on the thermoelectric properties in quantum ring consists of one QD in each arm, each QD connects with side QD. The calculations are based on the time dependent Hamiltonian model, the steady state is considered to obtain an analytical expression for the transmission probability as a function of system energies. We employed the transmission probability to calculate the thermoelectric properties. We investigate thermoelectric properties through three configurations of this nanostructure. Figure of merit enhanced in configuration (II) when side QD connected to upper arm of quantum ring. The magnetic flux threads quantum ring. The effect of magnetic flux on the thermoelectric properties is examined. (C) 2016 Elsevier B.V. All rights reserved.
引用
收藏
页码：201 / 206
页数：6
相关论文
共 31 条
[1]  
AL-Badry L. F., 2014, THEORETICAL STUDY TH
[2]  
Al-Badry L.F., 2015, J MAT SCI APPL, V1, P58
[3]   Resonant carrier scattering by core-shell nanoparticles for thermoelectric power factor enhancement [J].
Bahk, Je-Hyeong ;
Santhanam, Parthiban ;
Bian, Zhixi ;
Ram, Rajeev ;
Shakouri, Ali .
APPLIED PHYSICS LETTERS, 2012, 100 (01)
[4]   Logical XOR gate response in a quantum interferometer: A spin dependent transport [J].
Dey, Moumita ;
Maiti, Santanu K. ;
Karmakar, S. N. .
EUROPEAN PHYSICAL JOURNAL B, 2011, 80 (01) :105-114
[5]  
Fan H. J., 2011, J PHYS CHEM C, V114, P13947
[6]   Impurities-contributed abnormal thermoelectric effect in a parallel double quantum dot structure [J].
Gong, Wei-Jiang ;
Wang, Hui-Min ;
Han, Yu ;
Zhang, Si-Jing .
CURRENT APPLIED PHYSICS, 2014, 14 (01) :34-45
[7]   Coulomb-modified equilibrium and nonequilibrium properties in a double quantum dot Aharonov-Bohm-Fano interference device [J].
Gong, Weijiang ;
Xie, Xuefeng ;
Wei, Guozhu .
JOURNAL OF APPLIED PHYSICS, 2010, 107 (07)
[8]  
Imry Y, 2002, Introduction to Mesoscopic Physics
[9]   Thermoelectric effects of a laterally coupled double-quantum-dot structure [J].
Jiang, C. ;
Gong, W. J. ;
Zheng, Y. S. .
EUROPEAN PHYSICAL JOURNAL B, 2012, 85 (11)
[10]   Synthesis and Thermoelectric Properties of Bi2Se3 Nanostructures [J].
Kadel, K. ;
Kumari, Latha ;
Li, W. Z. ;
Huang, Jian Yu ;
Provencio, Paula P. .
NANOSCALE RESEARCH LETTERS, 2011, 6 :1-7
1234