The binding energy of a hydrogenic impurity in self-assembled double quantum dots

doi:10.1088/1674-1056/20/12/127301

Abstract The binding energy of a hydrogenic impurity in self-assembled double quantum dots is calculated via the finite-difference method. The variation in binding energy with donor position, structure parameters and external magnetic field is studied in detail. The results found are: (i) the binding energy has a complex behaviour due to coupling between the two dots; (ii) the binding energy is much larger when the donor is placed in the centre of one dot than in other positions; and (iii) the external magnetic field has different effects on the binding energy for different quantum-dot sizes or lateral confinements.

Keywords: hydrogenic impurity double quantum dots binding energy magnetic field

Received: 23 May 2011
Revised: 29 August 2011
Accepted manuscript online:

PACS:	73.20.Hb	(Impurity and defect levels; energy states of adsorbed species)
	73.21.La	(Quantum dots)
	73.40.Kp	(III-V semiconductor-to-semiconductor contacts, p-n junctions, and heterojunctions)

Fund: Project supported by the National Natural Science Foundation of China (Grant No. 10674040), the Natural Science Foundation of Hebei Province of China (Grant No. A2011205092), and the Scientific and Technological Research and Development Projects of Handan City (Grant No. 1128120063-3).

Cite this article:

Zhang Hong(张红), Wang Xue(王学), Zhao Jian-Feng(赵剑锋), and Liu Jian-Jun(刘建军) The binding energy of a hydrogenic impurity in self-assembled double quantum dots 2011 Chin. Phys. B 20 127301

[1]	Granados D and Garcia J M 2003 Appl. Phys. Lett. 82 2401
[2]	Raz T, Ritter D and Bahi G. 2003 Appl. Phys. Lett. 82 1706
[3]	Huang S S, Niu Z C, Fang Z D, Ni H Q and Gong Z 2006 Appl. Phys. Lett. 89 031921
[4]	Hashimoto T, Oshima R and Okada S Y 2007 J. Cryst. Growth 301-302 821
[5]	Fuster D, Alen B, Gonzalez L, Gonzalez Y and Pastor J M 2007 J. Cryst. Growth 301-302 705
[6]	Zhang M and Ban S L 2009 Chin. Phys. B 18 5437
[7]	Mikhailov I D, Betancur F J, Escorcia R A and Sieera-Ortega J 2003 Phys. Rev. B 67 115317
[8]	An X T and Liu J J 2006 J. Appl. Phys. 99 123713
[9]	Brandi H S, Latgé A and Oliveira L E 2004 Phys. Rev. B 70 153303
[10]	Zhang M and Ban S L 2009 Chin. Phys. B 18 4449
[11]	Park G, Shchechin O B, Huffaher D L and Deppe D G 2000 Appl. Phys. Lett. 73 3351
[12]	Li S S and Xia J B 2006 J. Appl. Phys. 100 083714
[13]	Li S S and Xia J B 2007 J. Appl. Phys. 101 093716
[14]	Perez-Merchancano S T, Paredes-Gutierrez H and Silva-Valencia J 2007 J. Phys.: Condens. Matter 19 026225
[15]	Qu F Y, Fonseca A L A and Nunes O A C 1997 J. Appl. Phys. 82 1236
[16]	Liu J J, Shen M and Wang S W 2007 J. Appl. Phys. 101 073703.
[17]	Wang X F 2007 Phys. Lett. A 364 66
[18]	Szafran B, Bednarek S and Adamowski J 2001 Phys. Rev. B 64 125301
[19]	Szafran B, Bednarek S, Chwiej T and Adamowski J 2003 Phys. Rev. B 68 045328

[1]	Quantum control of ultrafast magnetic field in H₃²⁺ molecules by tricircular polarized laser pulses Qing-Yun Xu(徐清芸), Yong-Lin He(何永林), Zhi-Jie Yang(杨志杰), Zhi-Xian Lei(雷志仙),Shu-Juan Yan(闫淑娟), Xue-Shen Liu(刘学深), and Jing Guo(郭静). Chin. Phys. B, 2023, 32(3): 033202.
[2]	Influence of magnetic field on power deposition in high magnetic field helicon experiment Yan Zhou(周岩), Peiyu Ji(季佩宇), Maoyang Li(李茂洋), Lanjian Zhuge(诸葛兰剑), and Xuemei Wu(吴雪梅). Chin. Phys. B, 2023, 32(2): 025205.
[3]	Simulation of the physical process of neural electromagnetic signal generation based on a simple but functional bionic Na⁺ channel Fan Wang(王帆), Jingjing Xu(徐晶晶), Yanbin Ge(葛彦斌), Shengyong Xu(许胜勇),Yanjun Fu(付琰军), Caiyu Shi(石蔡语), and Jianming Xue(薛建明). Chin. Phys. B, 2022, 31(6): 068701.
[4]	Vortex chains induced by anisotropic spin-orbit coupling and magnetic field in spin-2 Bose-Einstein condensates Hao Zhu(朱浩), Shou-Gen Yin(印寿根), and Wu-Ming Liu(刘伍明). Chin. Phys. B, 2022, 31(6): 060305.
[5]	Coupled flow and heat transfer of power-law nanofluids on non-isothermal rough rotary disk subjected to magnetic field Yun-Xian Pei(裴云仙), Xue-Lan Zhang(张雪岚), Lian-Cun Zheng(郑连存), and Xin-Zi Wang(王鑫子). Chin. Phys. B, 2022, 31(6): 064402.
[6]	Manipulating vortices in F=2 Bose-Einstein condensates through magnetic field and spin-orbit coupling Hao Zhu(朱浩), Shou-Gen Yin(印寿根), and Wu-Ming Liu(刘伍明). Chin. Phys. B, 2022, 31(4): 040306.
[7]	Nonlinear oscillation characteristics of magnetic microbubbles under acoustic and magnetic fields Lixia Zhao(赵丽霞), Huimin Shi(史慧敏), Isaac Bello, Jing Hu(胡静), Chenghui Wang(王成会), and Runyang Mo(莫润阳). Chin. Phys. B, 2022, 31(3): 034302.
[8]	Numerical investigation of radio-frequency negative hydrogen ion sources by a three-dimensional fluid model Ying-Jie Wang(王英杰), Jia-Wei Huang(黄佳伟), Quan-Zhi Zhang(张权治), Yu-Ru Zhang(张钰如), Fei Gao(高飞), and You-Nian Wang(王友年). Chin. Phys. B, 2021, 30(9): 095205.
[9]	Phase- and spin-dependent manipulation of leakage of Majorana mode into double quantum dot Fu-Bin Yang(羊富彬), Gan Ren(任淦), and Lin-Guo Xie(谢林果). Chin. Phys. B, 2021, 30(7): 078505.
[10]	Magnetization and magnetic phase diagrams of a spin-1/2 ferrimagnetic diamond chain at low temperature Tai-Min Cheng(成泰民), Mei-Lin Li(李美霖), Zhi-Rui Cheng(成智睿), Guo-Liang Yu(禹国梁), Shu-Sheng Sun(孙树生), Chong-Yuan Ge(葛崇员), and Xin-Xin Zhang(张新欣). Chin. Phys. B, 2021, 30(5): 057503.
[11]	A modified analytical model of the alkali-metal atomic magnetometer employing longitudinal carrier field Chang Chen(陈畅), Yi Zhang(张燚), Zhi-Guo Wang(汪之国), Qi-Yuan Jiang(江奇渊), Hui Luo(罗晖), and Kai-Yong Yang(杨开勇). Chin. Phys. B, 2021, 30(5): 050707.
[12]	Electron transfer properties of double quantum dot system in a fluctuating environment Lujing Jiang(姜露静), Kang Lan(蓝康), Zhenyu Lin(林振宇), and Yanhui Zhang(张延惠). Chin. Phys. B, 2021, 30(4): 040307.
[13]	Transport property of inhomogeneous strained graphene Bing-Lan Wu(吴冰兰), Qiang Wei(魏强), Zhi-Qiang Zhang(张智强), and Hua Jiang(江华). Chin. Phys. B, 2021, 30(3): 030504.
[14]	An electromagnetic view of relay time in propagation of neural signals Jing-Jing Xu(徐晶晶), San-Jin Xu(徐三津), Fan Wang(王帆), and Sheng-Yong Xu(许胜勇). Chin. Phys. B, 2021, 30(2): 028701.
[15]	Exploration of magnetic field generation of H₃²⁺ by direc ionization and coherent resonant excitation Zhi-Jie Yang(杨志杰), Qing-Yun Xu(徐清芸), Yong-Lin He(何永林), Xue-Shen Liu(刘学深), and Jing Guo(郭静). Chin. Phys. B, 2021, 30(12): 123203.

No Suggested Reading articles found!

Viewed

Full text

Abstract

Cited

Metrics
Related Articles

The binding energy of a hydrogenic impurity in self-assembled double quantum dots

Cite this article:

Online attention