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	Strong resonant intersubband magnetopolaron effect in heavily modulation-doped gaas/algaas single quantum wells at high magnetic fields
	Wang, YJ; Leem, YA; McCombe, BD; Wu, XG; Peeters, FM; Jones, ED; Reno, JR; Lee, XY; Jiang, HW
刊名	Physica e
	2000-02-01
卷号	6期号:1-4页码:195-200
关键词	Electron cyclotron resonance Electron-phonon interaction Subband
ISSN号	1386-9477
通讯作者	Wang, yj()
英文摘要	Electron cyclotron resonance (cr) has been studied in magnetic fields up to 32 t in two heavily modulation-delta-doped gaas/al0.3ga0.7as single quantum well samples. little effect on electron cr is observed in either sample in the region of resonance with the gaas lo phonons. however, above the lo-phonon frequency energy e-lo at b > 27 t, electron cr exhibits a strong avoided-level-crossing splitting for both samples at energies close to e-lo + (e-2 - e-1), where e-2, and e-1 are the energies of the bottoms of the second and the first subbands, respectively. the energy separation between the two branches is large, reaching a minimum of about 40 cm(-1) around 30.5 t for both samples. this splitting is due to a three-level resonance between the second li, of the first electron subband and the lowest ll of the second subband plus an lo phonon. the large splitting in the presence: of high electron densities is due to the absence of occupation (pauli-principle) effects in the final states and weak screening for this three-level process. (c) 2000 published by elsevier science b.v. all rights reserved.
WOS关键词	POLARON-CYCLOTRON-RESONANCE ; PHONON MODES ; GAAS ; HETEROSTRUCTURES
WOS研究方向	Science & Technology - Other Topics ; Physics
WOS类目	Nanoscience & Nanotechnology ; Physics, Condensed Matter
语种	英语
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000085770600048
内容类型	期刊论文
URI标识	http://www.corc.org.cn/handle/1471x/2428914
专题	半导体研究所
通讯作者	Wang, YJ
作者单位	1.Florida State Univ, Natl High Magnet Field Lab, Tallahassee, FL 32310 USA 2.SUNY Buffalo, Dept Phys, Buffalo, NY 14260 USA 3.Inst Semicond, Natl Lab Superlattices & Microstruct, Beijing, Peoples R China 4.Univ Instelling Antwerp, Dept Natuurkunde, B-2610 Wilrijk, Belgium 5.Sandia Natl Labs, Albuquerque, NM 87185 USA 6.Univ Calif Los Angeles, Dept Phys & Astron, Los Angeles, CA 90095 USA
推荐引用方式 GB/T 7714	Wang, YJ,Leem, YA,McCombe, BD,et al. Strong resonant intersubband magnetopolaron effect in heavily modulation-doped gaas/algaas single quantum wells at high magnetic fields[J]. Physica e,2000,6(1-4):195-200.
APA	Wang, YJ.,Leem, YA.,McCombe, BD.,Wu, XG.,Peeters, FM.,...&Jiang, HW.(2000).Strong resonant intersubband magnetopolaron effect in heavily modulation-doped gaas/algaas single quantum wells at high magnetic fields.Physica e,6(1-4),195-200.
MLA	Wang, YJ,et al."Strong resonant intersubband magnetopolaron effect in heavily modulation-doped gaas/algaas single quantum wells at high magnetic fields".Physica e 6.1-4(2000):195-200.

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