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	Influence of magneto-coupling between the longitudinal motion component and transverse landau orbits of an electron on transmission features in single quantum barriers
	Wang, XH; Gu, BY; Yang, GZ
刊名	European physical journal b
	1998-03-01
卷号	2期号:1页码:121-129
ISSN号	1434-6028
通讯作者	Wang, xh(wangxh@aphy01.iphy.ac.cn)
英文摘要	In this paper ive study the influence of the magneto-coupling effect between the longitudinal motion component and the transverse landau orbits of an electron on transmission features in single barrier structures. within the parabolic conduction-band approach, a modified one-dimensional effective-mass schrodinger equation, including the magneto-coupling effect generated from the position-dependent effective mass of the electron, is strictly derived. numerical calculations for single barrier structures show that the magneto-coupling effect brings about a series of the important changes for the transmission probability, the above-barrier quasi-bound states: and the tunneling time. through examining the variation of the above-barrier resonant-transmission spectrum with the barrier width and observing the well-defined lorentzian line-shape of the above-barrier resonant peaks, we convincingly show that the above-barrier resonant transmission in single barrier structures is delivered by the above-barrier quasibound states in the barrier region, just as the below-barrier resonant tunneling in double barrier structures is mediated by the below-barrier quasi-bound states in the well. furthermore, we come to the conclusion that the magneto-coupling effect brings about not only the splitting of the above-barrier quasi-bound levels but also the striking reduction of the level-width of the quasi-bound states; correspondingly, the substantial increase of the density of the quasi-bound states. we suggest that magneto-coupling effects may be observed by the measurements of the optical absorption spectrum associated with the above-barrier quasi-bound states in the single barrier structures.
WOS关键词	RESONANT-TUNNELING DIODES ; POTENTIAL BARRIER ; STATES ; HETEROSTRUCTURES ; GAMMA ; WELL ; TIME
WOS研究方向	Physics
WOS类目	Physics, Condensed Matter
语种	英语
出版者	SPRINGER VERLAG
WOS记录号	WOS:000073620600015
内容类型	期刊论文
URI标识	http://www.corc.org.cn/handle/1471x/2373797
专题	物理研究所
通讯作者	Wang, XH
作者单位	1.CCAST World Lab, Beijing 100080, Peoples R China 2.Acad Sinica, Inst Phys, Beijing 100080, Peoples R China
推荐引用方式 GB/T 7714	Wang, XH,Gu, BY,Yang, GZ. Influence of magneto-coupling between the longitudinal motion component and transverse landau orbits of an electron on transmission features in single quantum barriers[J]. European physical journal b,1998,2(1):121-129.
APA	Wang, XH,Gu, BY,&Yang, GZ.(1998).Influence of magneto-coupling between the longitudinal motion component and transverse landau orbits of an electron on transmission features in single quantum barriers.European physical journal b,2(1),121-129.
MLA	Wang, XH,et al."Influence of magneto-coupling between the longitudinal motion component and transverse landau orbits of an electron on transmission features in single quantum barriers".European physical journal b 2.1(1998):121-129.

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