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Using the method of equation of motion of nonequilibrium Green's function, we study the Aharonov-Bohm effect of differential conductance of electronic transport through a triple quantum dot system in which two quantum dots are directly coupled to the electrodes. We found that the conductance or tunneling property depends on the different values of local density of states. Moreover, electron transport through the system can be influenced by inter-dot coupling and energy level of each dot.
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Keywords:
- quantum dot /
- nonequilibrium Green's function /
- equation of motion /
- local density of states
[1] Datta S 2005 Quantum Transport Atom to Transistor (Cambridge: Cambridge University Press) p217
[2] Zhou B, Wu S Q, Sun W L, Zhou X L 2004 Chin. Phys. 13 225
[3] Ferry D K, Goodnick S M 1997 Transport in Nanostructures (Cambridge: Cambridge University Press) p21
[4] Yin Y Q, Li H, Ma J N, He Z L, Wang X Z 2009 Acta Phys. Sin. 58 4162 (in Chinese) [尹永琦、李 华、马佳宁、贺泽龙、王选章 2009 物理学报 58 4162]
[5] Orellana P A, Dominguez-Adame F, Gomez I, Ladron de Guevara M L 2003 Phys. Rev. B 67 085321
[6] Ireneusz Weymann 2008 Phys. Rev. B 78 045310
[7] Wang J M, Wang R, Zhang Y P, Liang J Q 2007 Chin. Phys. 16 2075
[8] Supriyo Datta 1995 Electronic Transport in Mesoscopic Systems 1995 (Cambridge: Cambridge University Press) p139
[9] Xin Q L, Yi J Y 2007 Phys. Rev. B 75 075114
[10] Wei Z W 2008 Phys. Rev. B 78 235316
[11] Mahan G D 2000 Many-Particle Physics 3rd Edition (New York: Kluwer Academic and Plenum Publishers)
[12] Wang H Y 2007 Theory of Green's Function in Condensed Matter Physics (Beijing: Scientific Press house) p274 [王怀玉 2007 凝聚态物理学中的格林函数理论(北京:科学出版社)第274页]
[13] An Y P, Yang C L, Wang M S, Ma X G, Wang D H 2010 Acta Phys. Sin. 59 2010 (in Chinese) [安义鹏、杨传路、王美山、马晓光、王德华 2010 物理学报 59 2010]
[14] Cornaglia P S, Grempe D R 2005 Phys. Rev. B 71 075305
[15] Ding G H, Chul Koo Kim, Kyun Nahm 2005 Phys. Rev. B 71 205313
[16] Yoichi Tanaka, Norio Kawakami 2005 Phys. Rev. B 72 085304
[17] Zhang G B, Wang S J, Li L 2006 Phys. Rev. B 74 085106
[18] Yoichi Tanaka, Norio Kawakami, Akira Oguri 2010 Phys. Rev. B 81 075404
[19] Siqueira E C, Cabrera G G 2010 Phys. Rev. B 81 094526
[20] Fang T F, Luo H G 2010 Phys. Rev. B 81 113402
[21] Zimbovskaya N A 2008 Phys. Rev. B 78 035331
[22] Wu S Q 2009 Acta Phys. Sin. 58 4175 (in Chinese) [吴绍全 2010 物理学报 58 4175]
[23] Haug H, Jauho A P 1996 Quantum Kinetics in Transport and Optics of Semiconductors 2nd Edition (Berlin: Spring-Verlag) p157
[24] Jiang Z T, Sun Q F, Wang Y P 2005 Phys. Rev. B 72 045332
[25] Ladrón de Guevara M L, Orellana P A 2006 Phys. Rev. B 73 205303
[26] Shim Y P, Delgado F, Hawrylak P 2009 Phys. Rev. B 80 115305
[27] Gaudreau L, Sachrajda A S, Studenikin S, Kam A, Delgado F, Shim Y P, Korkusinski M, Hawrylak P 2009 Phys. Rev. B 80 075415
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[1] Datta S 2005 Quantum Transport Atom to Transistor (Cambridge: Cambridge University Press) p217
[2] Zhou B, Wu S Q, Sun W L, Zhou X L 2004 Chin. Phys. 13 225
[3] Ferry D K, Goodnick S M 1997 Transport in Nanostructures (Cambridge: Cambridge University Press) p21
[4] Yin Y Q, Li H, Ma J N, He Z L, Wang X Z 2009 Acta Phys. Sin. 58 4162 (in Chinese) [尹永琦、李 华、马佳宁、贺泽龙、王选章 2009 物理学报 58 4162]
[5] Orellana P A, Dominguez-Adame F, Gomez I, Ladron de Guevara M L 2003 Phys. Rev. B 67 085321
[6] Ireneusz Weymann 2008 Phys. Rev. B 78 045310
[7] Wang J M, Wang R, Zhang Y P, Liang J Q 2007 Chin. Phys. 16 2075
[8] Supriyo Datta 1995 Electronic Transport in Mesoscopic Systems 1995 (Cambridge: Cambridge University Press) p139
[9] Xin Q L, Yi J Y 2007 Phys. Rev. B 75 075114
[10] Wei Z W 2008 Phys. Rev. B 78 235316
[11] Mahan G D 2000 Many-Particle Physics 3rd Edition (New York: Kluwer Academic and Plenum Publishers)
[12] Wang H Y 2007 Theory of Green's Function in Condensed Matter Physics (Beijing: Scientific Press house) p274 [王怀玉 2007 凝聚态物理学中的格林函数理论(北京:科学出版社)第274页]
[13] An Y P, Yang C L, Wang M S, Ma X G, Wang D H 2010 Acta Phys. Sin. 59 2010 (in Chinese) [安义鹏、杨传路、王美山、马晓光、王德华 2010 物理学报 59 2010]
[14] Cornaglia P S, Grempe D R 2005 Phys. Rev. B 71 075305
[15] Ding G H, Chul Koo Kim, Kyun Nahm 2005 Phys. Rev. B 71 205313
[16] Yoichi Tanaka, Norio Kawakami 2005 Phys. Rev. B 72 085304
[17] Zhang G B, Wang S J, Li L 2006 Phys. Rev. B 74 085106
[18] Yoichi Tanaka, Norio Kawakami, Akira Oguri 2010 Phys. Rev. B 81 075404
[19] Siqueira E C, Cabrera G G 2010 Phys. Rev. B 81 094526
[20] Fang T F, Luo H G 2010 Phys. Rev. B 81 113402
[21] Zimbovskaya N A 2008 Phys. Rev. B 78 035331
[22] Wu S Q 2009 Acta Phys. Sin. 58 4175 (in Chinese) [吴绍全 2010 物理学报 58 4175]
[23] Haug H, Jauho A P 1996 Quantum Kinetics in Transport and Optics of Semiconductors 2nd Edition (Berlin: Spring-Verlag) p157
[24] Jiang Z T, Sun Q F, Wang Y P 2005 Phys. Rev. B 72 045332
[25] Ladrón de Guevara M L, Orellana P A 2006 Phys. Rev. B 73 205303
[26] Shim Y P, Delgado F, Hawrylak P 2009 Phys. Rev. B 80 115305
[27] Gaudreau L, Sachrajda A S, Studenikin S, Kam A, Delgado F, Shim Y P, Korkusinski M, Hawrylak P 2009 Phys. Rev. B 80 075415
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