Optically detected magnetic resonance at 95 GHz of exciton states in InAs/GaAs quantum dots

N. Zurauskiene; G. Janssen; E. Goovaerts; A. Bouwen; D. Schoemaker; P.M. Koenraad; J.H. Wolter

Optically detected magnetic resonance at 95 GHz of exciton states in InAs/GaAs quantum dots

N. Zurauskiene
, G. Janssen
, E. Goovaerts
, A. Bouwen
, D. Schoemaker
, P.M. Koenraad
, J.H. Wolter

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Academic › peer-review

Abstract

We report an optically detected magnetic resonance study of the exciton fine structure in the MBE-grown InAs/GaAs quantum dots (QDs). The ODMR spectra were detected via modulation of the total intensity of the QD emission induced by W-band (95 GHz) microwave excitation. Two spectral features (ODMR signals) are obsd. when the static magnetic field is either parallel or perpendicular to the growth direction z of the sample. A well-pronounced pos. high-field signal obsd. for B z is attributed to hole spin transitions with nonzero (as is the case of quantum wells) effective hole g-factor gh, = 3.0. In the case when B // z the high-field signal corresponds to gh,// = 3.9. A strongly anisotropic low-field transition is tentatively attributed to cyclotron resonance (CR). [on SciFinder (R)]

Original language	English
Title of host publication	Proceedings of the School and Workshop on Nanotubes & Nanostructures, 2000
Pages	307-313
Publication status	Published - 2001

Publication series

Name	Conference Proceedings - Italian Physical Society
Volume	74
ISSN (Print)	1122-1437

Cite this

@inproceedings{c38ec6b1816b460db3b39724c319685c,

title = "Optically detected magnetic resonance at 95 GHz of exciton states in InAs/GaAs quantum dots",

abstract = "We report an optically detected magnetic resonance study of the exciton fine structure in the MBE-grown InAs/GaAs quantum dots (QDs). The ODMR spectra were detected via modulation of the total intensity of the QD emission induced by W-band (95 GHz) microwave excitation. Two spectral features (ODMR signals) are obsd. when the static magnetic field is either parallel or perpendicular to the growth direction z of the sample. A well-pronounced pos. high-field signal obsd. for B z is attributed to hole spin transitions with nonzero (as is the case of quantum wells) effective hole g-factor gh, = 3.0. In the case when B // z the high-field signal corresponds to gh,// = 3.9. A strongly anisotropic low-field transition is tentatively attributed to cyclotron resonance (CR). [on SciFinder (R)]",

author = "N. Zurauskiene and G. Janssen and E. Goovaerts and A. Bouwen and D. Schoemaker and P.M. Koenraad and J.H. Wolter",

year = "2001",

language = "English",

series = "Conference Proceedings - Italian Physical Society",

pages = "307--313",

booktitle = "Proceedings of the School and Workshop on Nanotubes \& Nanostructures, 2000",

}

Optically detected magnetic resonance at 95 GHz of exciton states in InAs/GaAs quantum dots. / Zurauskiene, N.; Janssen, G.; Goovaerts, E. et al.
Proceedings of the School and Workshop on Nanotubes & Nanostructures, 2000. 2001. p. 307-313 (Conference Proceedings - Italian Physical Society; Vol. 74).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Academic › peer-review

TY - GEN

T1 - Optically detected magnetic resonance at 95 GHz of exciton states in InAs/GaAs quantum dots

AU - Zurauskiene, N.

AU - Janssen, G.

AU - Goovaerts, E.

AU - Bouwen, A.

AU - Schoemaker, D.

AU - Koenraad, P.M.

AU - Wolter, J.H.

PY - 2001

Y1 - 2001

N2 - We report an optically detected magnetic resonance study of the exciton fine structure in the MBE-grown InAs/GaAs quantum dots (QDs). The ODMR spectra were detected via modulation of the total intensity of the QD emission induced by W-band (95 GHz) microwave excitation. Two spectral features (ODMR signals) are obsd. when the static magnetic field is either parallel or perpendicular to the growth direction z of the sample. A well-pronounced pos. high-field signal obsd. for B z is attributed to hole spin transitions with nonzero (as is the case of quantum wells) effective hole g-factor gh, = 3.0. In the case when B // z the high-field signal corresponds to gh,// = 3.9. A strongly anisotropic low-field transition is tentatively attributed to cyclotron resonance (CR). [on SciFinder (R)]

AB - We report an optically detected magnetic resonance study of the exciton fine structure in the MBE-grown InAs/GaAs quantum dots (QDs). The ODMR spectra were detected via modulation of the total intensity of the QD emission induced by W-band (95 GHz) microwave excitation. Two spectral features (ODMR signals) are obsd. when the static magnetic field is either parallel or perpendicular to the growth direction z of the sample. A well-pronounced pos. high-field signal obsd. for B z is attributed to hole spin transitions with nonzero (as is the case of quantum wells) effective hole g-factor gh, = 3.0. In the case when B // z the high-field signal corresponds to gh,// = 3.9. A strongly anisotropic low-field transition is tentatively attributed to cyclotron resonance (CR). [on SciFinder (R)]

M3 - Conference contribution

T3 - Conference Proceedings - Italian Physical Society

SP - 307

EP - 313

BT - Proceedings of the School and Workshop on Nanotubes & Nanostructures, 2000

ER -

Optically detected magnetic resonance at 95 GHz of exciton states in InAs/GaAs quantum dots

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