Spin-selective positioning of wave functions in magnetically tunable symmetric triple quantum wells

S. Lee; M. Dobrowolska; J. K. Furdyna; L. R. Ram-Mohan

doi:10.1016/S0925-3467(03)00063-6

Spin-selective positioning of wave functions in magnetically tunable symmetric triple quantum wells

S. Lee, M. Dobrowolska, J. K. Furdyna, L. R. Ram-Mohan

Department of Physics

Research output: Contribution to journal › Conference article › peer-review

2 Citations (Scopus)

Abstract

We have experimentally demonstrated the wave functions distribution of the lowest multiplet of states in symmetric triple quantum wells (QWs) using magneto-absorption measurements. In this experiment, we utilized the giant Zeeman splitting of band edges in diluted magnetic semiconductors (DMSs) to map out the wave functions of states. We fabricated two triple QW systems consisting of Zn_1-x-yCd_xMn_ySe (DMS) and Zn_1-xCd_xSe (non-DMS) wells, separated by ZnSe (i.e., non-magnetic) barriers. Transitions involving the lowest multiplet of states (i.e., the ground state split by inter-well interactions) were clearly observed and well resolved at zero magnetic field. By analyzing the Zeeman shift shown by each transition, we are able to demonstrate the probability of finding an electron in a given well.

Original language	English
Pages (from-to)	79-82
Number of pages	4
Journal	Optical Materials
Volume	23
Issue number	1-2
DOIs	https://doi.org/10.1016/S0925-3467(03)00063-6
Publication status	Published - 2003
Event	Proceedings of the 8th ICEM 2002 - XI'an, China Duration: 2002 Jun 10 → 2002 Jun 14

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Computer Science(all)
Atomic and Molecular Physics, and Optics
Spectroscopy
Physical and Theoretical Chemistry
Organic Chemistry
Inorganic Chemistry
Electrical and Electronic Engineering

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10.1016/S0925-3467(03)00063-6

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title = "Spin-selective positioning of wave functions in magnetically tunable symmetric triple quantum wells",

abstract = "We have experimentally demonstrated the wave functions distribution of the lowest multiplet of states in symmetric triple quantum wells (QWs) using magneto-absorption measurements. In this experiment, we utilized the giant Zeeman splitting of band edges in diluted magnetic semiconductors (DMSs) to map out the wave functions of states. We fabricated two triple QW systems consisting of Zn1-x-yCdxMnySe (DMS) and Zn1-xCdxSe (non-DMS) wells, separated by ZnSe (i.e., non-magnetic) barriers. Transitions involving the lowest multiplet of states (i.e., the ground state split by inter-well interactions) were clearly observed and well resolved at zero magnetic field. By analyzing the Zeeman shift shown by each transition, we are able to demonstrate the probability of finding an electron in a given well.",

author = "S. Lee and M. Dobrowolska and Furdyna, {J. K.} and Ram-Mohan, {L. R.}",

note = "Funding Information: This research was supported by the (US) National Science Foundation grant DMR-0072897; by the Korea Science and Engineering Foundation (KOSEF) through the Quantum Functional Semiconductor Research Center (QSRC) at Dongguk University; and by a Korea University Grant.; Proceedings of the 8th ICEM 2002 ; Conference date: 10-06-2002 Through 14-06-2002",

year = "2003",

doi = "10.1016/S0925-3467(03)00063-6",

language = "English",

volume = "23",

pages = "79--82",

journal = "Optical Materials",

issn = "0925-3467",

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TY - JOUR

T1 - Spin-selective positioning of wave functions in magnetically tunable symmetric triple quantum wells

AU - Lee, S.

AU - Dobrowolska, M.

AU - Furdyna, J. K.

AU - Ram-Mohan, L. R.

N1 - Funding Information: This research was supported by the (US) National Science Foundation grant DMR-0072897; by the Korea Science and Engineering Foundation (KOSEF) through the Quantum Functional Semiconductor Research Center (QSRC) at Dongguk University; and by a Korea University Grant.

PY - 2003

Y1 - 2003

N2 - We have experimentally demonstrated the wave functions distribution of the lowest multiplet of states in symmetric triple quantum wells (QWs) using magneto-absorption measurements. In this experiment, we utilized the giant Zeeman splitting of band edges in diluted magnetic semiconductors (DMSs) to map out the wave functions of states. We fabricated two triple QW systems consisting of Zn1-x-yCdxMnySe (DMS) and Zn1-xCdxSe (non-DMS) wells, separated by ZnSe (i.e., non-magnetic) barriers. Transitions involving the lowest multiplet of states (i.e., the ground state split by inter-well interactions) were clearly observed and well resolved at zero magnetic field. By analyzing the Zeeman shift shown by each transition, we are able to demonstrate the probability of finding an electron in a given well.

AB - We have experimentally demonstrated the wave functions distribution of the lowest multiplet of states in symmetric triple quantum wells (QWs) using magneto-absorption measurements. In this experiment, we utilized the giant Zeeman splitting of band edges in diluted magnetic semiconductors (DMSs) to map out the wave functions of states. We fabricated two triple QW systems consisting of Zn1-x-yCdxMnySe (DMS) and Zn1-xCdxSe (non-DMS) wells, separated by ZnSe (i.e., non-magnetic) barriers. Transitions involving the lowest multiplet of states (i.e., the ground state split by inter-well interactions) were clearly observed and well resolved at zero magnetic field. By analyzing the Zeeman shift shown by each transition, we are able to demonstrate the probability of finding an electron in a given well.

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U2 - 10.1016/S0925-3467(03)00063-6

DO - 10.1016/S0925-3467(03)00063-6

M3 - Conference article

AN - SCOPUS:0038010653

SN - 0925-3467

VL - 23

SP - 79

EP - 82

JO - Optical Materials

JF - Optical Materials

IS - 1-2

T2 - Proceedings of the 8th ICEM 2002

Y2 - 10 June 2002 through 14 June 2002

ER -

Spin-selective positioning of wave functions in magnetically tunable symmetric triple quantum wells

Abstract

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