Skip to main content Accessibility help
×
Home
Hostname: page-component-559fc8cf4f-28jzs Total loading time: 0.243 Render date: 2021-03-05T21:22:10.157Z Has data issue: true Feature Flags: { "shouldUseShareProductTool": true, "shouldUseHypothesis": true, "isUnsiloEnabled": true, "metricsAbstractViews": false, "figures": false, "newCiteModal": false, "newCitedByModal": true }

High Pressure Optical Studies of GaSb-AlSb Multiple Quantum Wells

Published online by Cambridge University Press:  28 February 2011

Benjamin Rockwell
Affiliation:
Department of Physics, University of Missouri-Columbia, Columbia, MO 65211
H.R. Chandrasekhar
Affiliation:
Department of Physics, University of Missouri-Columbia, Columbia, MO 65211
Meera Chandrasekhar
Affiliation:
Department of Physics, University of Missouri-Columbia, Columbia, MO 65211
Fred H. Pollak
Affiliation:
Physics Department, Brooklyn College of CUNY, Brooklyn, N.Y. 11210
H. Shen
Affiliation:
Physics Department, Brooklyn College of CUNY, Brooklyn, N.Y. 11210
L.L. Chang
Affiliation:
IBM Thomas J.Watson Research Center, Yorktown Heights, N.Y. 10598-0218
W.I. Wang
Affiliation:
IBM Thomas J.Watson Research Center, Yorktown Heights, N.Y. 10598-0218
L. Esaki
Affiliation:
IBM Thomas J.Watson Research Center, Yorktown Heights, N.Y. 10598-0218
Get access

Abstract

The pressure coefficients (α) of the excitonic transitions arising from the conduction (CB) to the heavy (HH) and light (LH) hole sub-bands of a GaSb-AlSb multiple quantum well structure (MQW) grown on a GaAs substrate are determined. Photoreflectance (PR) and Photoluminescence (PL) studies are employed at cryogenic temperatures. The α for the ground sub-band transition is ~10% smaller than that for bulk GaSb. This effect is explained by in-plane deformation of the MQW arising from the substrate under external pressure. On the other hand, the α get progressively smaller for the higher sub-band transitions due to quantum confinement The PL intensity drops dramatically as the direct Γ CB crosses the L CB at ~10kBars but the PR intensity persists until the X CB crosses each sub-band energy.

Type
Research Article
Copyright
Copyright © Materials Research Society 1990

Access options

Get access to the full version of this content by using one of the access options below.

References

1 The band gap of GaSb corresponds to the wavelength range(l.5µm) of best performance of optical fibers.Google Scholar
2Shen, H., Hang, Z., Leng, Jing, Pollak, F.H., Chang, L.L., Wang, W.I. and Esaki, L., Superlattices and Microstructures 5, 591 (1989).CrossRefGoogle Scholar
3Lefebvre, P., Gil, B., Allegre, J., Mathieu, H., Chen, Y. and Raisin, C., Phys.Rev. B35, 1230 (1987–II.)CrossRefGoogle Scholar
4Voison, P., Delalande, C., Voos, M., Chang, L.L., Segmuller, A., Chang, C.A. and Esaki, L., Phys. Rev. B30, 2276 (1984).CrossRefGoogle Scholar
5Griffiths, G., Mohammed, K., Subbanna, S., Kroemer, H. and Merz, J.L., Applied Physics Letters 43, 1059 (1983).CrossRefGoogle Scholar
6Forchel, A., Cebulla, U., Trankle, G., Griffiths, G., Subbanna, S. and Kroemer, H., Surface Science 174, 143 (1986).CrossRefGoogle Scholar
7Forchel, A., Cebulla, U., Trankle, G., Lach, E., Reinecke, T.L., Griffiths, G., Subbanna, S. and Kroemer, R., Phys.Rev.Letters, 57, 3217 (1986).CrossRefGoogle Scholar
8Cebulla, U., Trankle, G., Ziem, U., Forchel, A., Griffiths, G., Kroemer, H.,and Subbanna, S., Phys.Rev. B37, 6778 (1988).Google Scholar
9Paul, W. and warschauer, D.M. in Solids under Pressure (McGraw Hill, New York, 1963); R.W. Keyes in Semiconductors and Semimetals, ed. by R.K. Willardson and A.C. Beers(Academic, New York, 1968), Vol 4, p327 ; G.D. Pitt, Contemp. Phys. 18,137(1977).Google Scholar
10 See for example Kangarlu, A., Chandrasekhar, H.R., Chandrasekhar, M., Kapoor, Y.M, Chambers, F.A., Vojak, B.A. and Meese, J.M., Phys.Rev. B38, 9790 (1988-I); ibid,Superlattices and Microstructures, 2, 563(1986); U. Venkateswaran, M. Chandrasekhar, H.R. Chandrasekhar, T. Wolfram, R. Fischer, W.R. Masselink and H. Morkoc, Phys.Rev.B31,4106(1985); U. Venkateswaran, M. Chandrasekhar, H.R. Chandrasekhar, B.A. Vojak, F.A. Chambers and J.M. Meese, Phys.Rev. B33, 8416(1986).CrossRefGoogle Scholar
11Noack, R.A. and Holzapfel, W.B., Solid State Commun., 28, 177 (1978).CrossRefGoogle Scholar
12Adachi, S., J.Appl.Phys. 58, R1 (1985).CrossRefGoogle Scholar
13LeFebvre, P., Gil, B. and Mattieu, R., Phys.Rev. B35, 5630 (1987) ; D.Z.-Y. Ting and Y.C. Chang,Phys.Rev. B36, 4359(l987).CrossRefGoogle Scholar
14Shay, J.L., Phys.Rev. 2, 803 (1970); O.J. Glembocki, B.V. Shanabrook, N. Bottka, W.T. Beard and J. Comas, Proceedings of the Society of Photo-Optical Instrumentation Engineers (SPIE, Bellingham, 1985) 524,86(1985); also, Appl.Phys.Letts. 46, 970(1985).CrossRefGoogle Scholar
15Kangarlu, A., Ph.D. thesis, University of Missouri-Columbia, 1987 (unpublished). U.Venkateswaran, Ph.D. Thesis, University of Missouri-Columbia, 1985(Unpublished).Google Scholar
16Aspnes, D.E., Surface Science 37, 418 (1973).CrossRefGoogle Scholar
17Glembocki, O.J. and Shanabrook, B.V., Superlattices and Microstructures 3, 235 (1987).CrossRefGoogle Scholar
18Pollak, F.H. and Glembocki, O.J.,Proceedings of the Society of Photo-Optical Instrumentation Engineers (SPIE, Bellingham, 1988) 946, 2 (1988).Google Scholar
19 Rigorously the PR lineshapes for isolated quantum wells is the first derivative of a Lorentzian or Gaussian profile as discussed in Ref.17.Google Scholar
20 The intensities of peaks in thePR spectra are also very sensitive to the built-in electric fields in the sample, the intensity and wavelength of the laser radiation which modulates these fields. Some anomalous intensity effects and strong parity forbidden transitions are often observedGoogle Scholar
21Bastard, G. and Brum, J.A., IEEE Journal of Quantum Electronics, QE–22, 1625 (1986).CrossRefGoogle Scholar
22Gil, B., Dunstan, D.J., Calatayud, J., Mathieu, H. and Faurie, J.P., Phys. Rev. B40, 5522 (1989).CrossRefGoogle Scholar
23Rockwell, Benjamin, Chandrasekhar, H.R., Chandrasekhar, M., Pollak, Fred H., Shen, H., Chang, L.L., wang, W.I. and Esaki, L., Surface Science (in print).Google Scholar

Full text views

Full text views reflects PDF downloads, PDFs sent to Google Drive, Dropbox and Kindle and HTML full text views.

Total number of HTML views: 0
Total number of PDF views: 6 *
View data table for this chart

* Views captured on Cambridge Core between September 2016 - 5th March 2021. This data will be updated every 24 hours.

Send article to Kindle

To send this article to your Kindle, first ensure no-reply@cambridge.org is added to your Approved Personal Document E-mail List under your Personal Document Settings on the Manage Your Content and Devices page of your Amazon account. Then enter the ‘name’ part of your Kindle email address below. Find out more about sending to your Kindle. Find out more about sending to your Kindle.

Note you can select to send to either the @free.kindle.com or @kindle.com variations. ‘@free.kindle.com’ emails are free but can only be sent to your device when it is connected to wi-fi. ‘@kindle.com’ emails can be delivered even when you are not connected to wi-fi, but note that service fees apply.

Find out more about the Kindle Personal Document Service.

High Pressure Optical Studies of GaSb-AlSb Multiple Quantum Wells
Available formats
×

Send article to Dropbox

To send this article to your Dropbox account, please select one or more formats and confirm that you agree to abide by our usage policies. If this is the first time you use this feature, you will be asked to authorise Cambridge Core to connect with your <service> account. Find out more about sending content to Dropbox.

High Pressure Optical Studies of GaSb-AlSb Multiple Quantum Wells
Available formats
×

Send article to Google Drive

To send this article to your Google Drive account, please select one or more formats and confirm that you agree to abide by our usage policies. If this is the first time you use this feature, you will be asked to authorise Cambridge Core to connect with your <service> account. Find out more about sending content to Google Drive.

High Pressure Optical Studies of GaSb-AlSb Multiple Quantum Wells
Available formats
×
×

Reply to: Submit a response


Your details


Conflicting interests

Do you have any conflicting interests? *