An Approach for Calculating Strain Distributions in Arbitrarily Shaped Quantum Dots
CHU Hai-Jian, WANG Jian-Xiang
State Key Laboratory for Turbulence and Complex Systems and Department of Mechanics and Engineering Science, Peking University, Beijing 100871
An Approach for Calculating Strain Distributions in Arbitrarily Shaped Quantum Dots
CHU Hai-Jian;WANG Jian-Xiang
State Key Laboratory for Turbulence and Complex Systems and Department of Mechanics and Engineering Science, Peking University, Beijing 100871
关键词 ：
68.65.Hb ,
62.25.+g ,
46.70.-p
Abstract ： We study strain distribution inside and outside an arbitrarily-shaped quantum dot (QD) buried in an infinite isotropic medium. By defining a very simple vector, we derive a compact formula for stress fields expressed by an integral over the interface between the QD and its surrounding material. Using this method, the analytical solution for a cuboidal QD is obtained, which is different from the previous result. It is shown that our solution satisfies the traction continuity condition on the interface. Based on this solution, it is found that the strain field in the cuboidal QD in the semiconductor heterostructure is sensitive to its height. In addition, the strain distribution around a hemispherical QD is also calculated and demonstrated.
Key words ：
68.65.Hb
62.25.+g
46.70.-p
出版日期: 2005-03-01
:
68.65.Hb
(Quantum dots (patterned in quantum wells))
62.25.+g
46.70.-p
(Application of continuum mechanics to structures)
引用本文:
CHU Hai-Jian;WANG Jian-Xiang. An Approach for Calculating Strain Distributions in Arbitrarily Shaped Quantum Dots[J]. 中国物理快报, 2005, 22(3): 667-670.
链接本文:
https://cpl.iphy.ac.cn/CN/
或
https://cpl.iphy.ac.cn/CN/Y2005/V22/I3/667
[1]
JI Dong;GAO Xiang;KONG Xiang-Yang;LI Jia-Ming;. Atomistic Failure Mechanism of Single Wall Carbon Nanotubes with Small Diameters
[2]
SHEN Min;WEI He-Lin;WANG Jian;LIU Zu-Li. Copper Nanobelt Reorientation by Molecular Dynamics Simulation
[3]
ZHANG Xi-Yan;WU Xiao-Lei;XIA Bao-Yu;ZHOU Ming-Zhe;ZHOU Shi-Jie;JIA Chong. Step Structure in Cold-Rolled Deformed Nanocrystalline Nickel
[4]
DENG Ning;ZHANG Lei;CHEN Pei-Yi. Investigation of Composition in Nano-Scaled Self-Assembled SiGe Islands
[5]
WANG Bao-Lin;;ZHAO Ji-Jun;SHI Da-Ning;JIA Jian-Min;WANG Guang-Hou. Electronic and Elastic Properties of Helical Nickel Nanowires
[6]
LÜWei;LI Da-Bing;ZHANG Zi-Yang;LI Chao-Rong;ZHANG Ze;XU Bo;WANG Zhan-Gum. Rapid Thermal Annealing Effects on Structural and Optical Properties of Self-Assembled InAs/GaAs Quantum Dots Capped by InAlAs/InGaAs Layers
[7]
LIANG Song;ZHU Hong-Liang;PAN Jiao-Qing;ZHAO Ling-Juan;WANG Wei. Effect of Annealing on Optical Properties of InAs Quantum Dots Grown by MOCVD on GaAs (100) Vicinal Substrates
[8]
DING Jian-Wen;YAN Xiao-Hong;LIU Chao-Ping;TANG Na-Si. Strain Induced Insulator-Metal Transition in Single Wall Carbon Nanotubes
[9]
LOU Chao-Gang. Nonmean-Field Model for Ostwald Ripening of Two-Dimensional Islands
[10]
XU Ling;LI Ming-Hai;ZHANG Yu;MA Yi;XU Jun;HUANG Xin-Fan;CHEN Kun-Ji. Face-Centered-Cubic Artificial Opal Embedded with CdS Quantum
Dots
[11]
WANG Jing-Yang;WANG Xiao-Wei;J. Rifkin;LI Dou-Xing. Molecular Dynamics Study of the Microstructure of Near Grain Boundary Distortion Region in Small Grain Nano-NiAl Alloy
2005, Vol. 22 
