The influence of intradot Coulomb interactions on the conductance for a parallel-coupled triple quantum dot system

被引:10
作者
He, Zelong [1 ,2 ]
Lu, Tianquan [1 ]
Li, Hua [3 ]
Li, Linjun [2 ]
Cui, Lian [1 ]
Xue, Huijie [1 ,3 ]
机构
[1] Harbin Inst Technol, Ctr Condensed Matter Sci & Technol, Harbin 150080, Peoples R China
[2] Heilongjiang Inst Technol, Inst Optoelect Technol, Harbin 150050, Peoples R China
[3] Harbin Normal Univ, Sch Phys & Elect Engn, Harbin 150025, Peoples R China
关键词
TRANSPORT;
D O I
10.1088/0031-8949/84/03/035703
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
Using the nonequilibrium Keldysh Green function technique, the influence of intradot Coulomb interactions on conductance for a parallel-coupled triple quantum dot system is investigated. The conductance as a function of electron energy is numerically calculated. The combined effect of the intradot Coulomb interaction and the magnetic flux leads to an intricate conductance lineshape. Moreover, both the magnetic flux and the interdot coupling strength may modulate the Fano effect.
引用
收藏
页数:7
相关论文
共 33 条
[1]   Out-of-equilibrium Kondo effect in double quantum dots [J].
Aguado, R ;
Langreth, DC .
PHYSICAL REVIEW LETTERS, 2000, 85 (09) :1946-1949
[2]   Kondo effect in coupled quantum dots: A noncrossing approximation study [J].
Aguado, R ;
Langreth, DC .
PHYSICAL REVIEW B, 2003, 67 (24)
[3]   Kondo resonant spectra in coupled quantum dots [J].
Aono, T ;
Eto, M .
PHYSICAL REVIEW B, 2001, 63 (12)
[4]   Effect of inhomogeneous magnetic flux on double-dot Aharonov-Bohm interferometer [J].
Bai, ZM ;
Yang, MF ;
Chen, YC .
JOURNAL OF PHYSICS-CONDENSED MATTER, 2004, 16 (12) :2053-2063
[5]   THEORY OF COULOMB-BLOCKADE OSCILLATIONS IN THE CONDUCTANCE OF A QUANTUM DOT [J].
BEENAKKER, CWJ .
PHYSICAL REVIEW B, 1991, 44 (04) :1646-1656
[6]   Transition between quantum states in a parallel-coupled double quantum dot [J].
Chen, JC ;
Chang, AM ;
Melloch, MR .
PHYSICAL REVIEW LETTERS, 2004, 92 (17) :176801-1
[7]   Electron transport through quantum dots with indirect coupling parameter [J].
Chen, Kuo-Wei ;
Chang, Ching-Ray .
JOURNAL OF APPLIED PHYSICS, 2008, 103 (07)
[8]   Fano-Rashba effect in a double quantum dot Aharonov-Bohm interferometer [J].
Chi, Feng ;
Liu, Jin-Long ;
Sun, Lian-Liang .
JOURNAL OF APPLIED PHYSICS, 2007, 101 (09)
[9]   Electronic transport through a parallel-coupled triple quantum dot molecule: Fano resonances and bound states in the continuum [J].
de Guevara, M. L. Ladron ;
Orellana, P. A. .
PHYSICAL REVIEW B, 2006, 73 (20)
[10]   Ghost Fano resonance in a double quantum dot molecule attached to leads [J].
de Guevara, MLL ;
Claro, F ;
Orellana, PA .
PHYSICAL REVIEW B, 2003, 67 (19)