Stark Effect Dependence on Hydrogenic Impurities in GaAs Parabolic Quantum-Well Wires

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	Stark Effect Dependence on Hydrogenic Impurities in GaAs Parabolic Quantum-Well Wires
	S. Wang; G. Z. Wei; Y. Han
	2009
发表期刊	Communications in Theoretical Physics
ISSN	0253-6102
卷号	52 期号:5 页码:953-959
摘要	The ground-state and lowest excited-state binding energies of a hydrogenic impurity in GaAs parabolic quantum-well wires(QWWs) subjected to external electric and magnetic fields are investigated using the finite-difference method within the quasi-one-dimensional effective potential model. We define an effective radius rho(eff) of a cylindrical QWW, which can describe the strength of the lateral confinement. For the ground state, the position of the largest probability density of electron in x-y plane is locate data point, while for the lowest excited state, is located on a circularity whose radius is rho(eff). The point and circularity are pushed along the left half of the center axis of the quantum-well wire by the electric field directed along the right half. When an impurity is located at the point or within the circularity, the ground-state or lowest excited-state binding energies are the largest;when the impurity is a part from the point or circularity, the ground-state or lowest excited-state binding energies start to decrease.
部门归属	[wang sheng; wei guo-zhu; han yu] northeastern univ, coll sci, shenyang 110004, peoples r china. [wang sheng] daqing petr inst, coll elect sci, daqing 163318, peoples r china. [wei guo-zhu] acad sinica, int ctr mat phys, shenyang 110015, peoples r china.;wei, gz (reprint author), northeastern univ, coll sci, shenyang 110004, peoples r china;guozhuwei02@sina.com
关键词	Hydrogenic Impurity Quantum-well Wire Magnetic Field Binding Energy Magnetic-field Binding-energy Donor Impurity Electric-field Shallow Donor Ground-state Dot
URL	查看原文
WOS记录号	WOS:000272382000038
引用统计	被引频次：2[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/32373
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	S. Wang,G. Z. Wei,Y. Han. Stark Effect Dependence on Hydrogenic Impurities in GaAs Parabolic Quantum-Well Wires[J]. Communications in Theoretical Physics,2009,52(5):953-959.
APA	S. Wang,G. Z. Wei,&Y. Han.(2009).Stark Effect Dependence on Hydrogenic Impurities in GaAs Parabolic Quantum-Well Wires.Communications in Theoretical Physics,52(5),953-959.
MLA	S. Wang,et al."Stark Effect Dependence on Hydrogenic Impurities in GaAs Parabolic Quantum-Well Wires".Communications in Theoretical Physics 52.5(2009):953-959.