Skip to main content Accessibility help
×
Home

Far Infrared Spectroscopy of In0.53Ga0.47As Quantum Wells on InP(100)

  • N. L. Rowell (a1), D. J. Lockwood (a2), P. J. Poole (a2) and G. Yu (a1)

Abstract

Polarized far infrared reflectance was measured at oblique incidence for In0.53Ga0.47As / InP multiple quantum wells grown by chemical beam epitaxy on InP(100) wafers. Both the well thickness (0.25 - 20 nm) and number of periods (10 - 40) were varied. The reflectance spectra contained sharp Berreman modes at the frequencies of the transverse (TO) and longitudinal (LO) optical phonons. The contributions of the individual phonons were resolved with the model fits. Interface layer phonon modes were observed with intensity increasing with number of wells. The interface layers were 0.6 nm thick and of different composition to adjoining wells consistent with cross-sectional scanning tunneling microscope results on the same samples. The variation due to phonon confinement of the InAs- and GaAs-like LO and TO phonon frequencies was obtained.

Copyright

References

Hide All
1. Shin, H. K., Lockwood, D. J., Lacelle, C., and Poole, P. J., J. Appl. Phys. 88, 6423 (2000).
2. Chen, H., McKay, H. A., Feenstra, R. M., Aers, G. C., Poole, P. J., Williams, R. L., Charbonneau, S., Piva, P. G., Simpson, T. W., and Mitchell, I. V., J. Appl. Phys. 89, 4815 (2001).
3. Brodsky, M. H. and Lucovsky, G., Phys. Rev. Lett. 21, 990 (1968).
4. Groenen, J., Landa, G., Carles, R., Pizani, P. S., and Gendry, M., J. Appl. Phys. 82, 803 (1997).
5. Yu, G., Rowell, N. L., Lockwood, D. J., and Poole, P. J., App. Phys. Lett. 81, 2175 (2002).
6. Dumelow, T. and Tilley, D. R., J. Opt. Soc. Am. A 10, 633 (1993).
7. Milekhin, A., Yanovskii, Yu., Preobrazhenskii, V., Semyagin, B., Pusep, Yu., and Galzerani, J. C., Physica E 2, 368 (1998).
8. Berreman, D. W., Phys. Rev. 130, 2193 (1963).
9. Leibiger, G., Gottschalch, V., and Schubert, M., J. Appl. Phys. 90, 5951 (2001).
10. Mowbray, D. J., Hayes, W., Taylor, L. L., and Bass, S. J., Semicond. Sci. Technol. 5, 83 (1990).
11. McKay, H. A., Feenstra, R. M., Poole, P. J., and Aers, G. C., J. Crystal Growth (in press 2003).
12. Lockwood, D. J., private communication 2002.
13. Rowell, N. L. and Wang, E. A., Applied Optics 35, 2927 (1996).
14. Gervais, F. and Piriou, B., J. Phys. C.: Solid State Phys. 7, 2374 (1974).
15. Lowndes, R. P., Phys. Rev. B 1, 2754 (1970).
16. Groenen, J., Carles, R., Landa, G., Guerret-Piécourt, C., Fontaine, C., and Gendry, M., Phys. Rev. B 58, 10452 (1998).
17. Carles, R., Saint-Cricq, N., Renucci, J. B., Renucci, M. A., and Zwick, A., Phys. Rev. B 22, 4804 (1980).
18. Barker, A. S. Jr, Merz, J. L., and Gossard, A. C., Phys. Rev. B 17, 3181 (1978).

Metrics

Full text views

Total number of HTML views: 0
Total number of PDF views: 0 *
Loading metrics...

Abstract views

Total abstract views: 0 *
Loading metrics...

* Views captured on Cambridge Core between <date>. This data will be updated every 24 hours.

Usage data cannot currently be displayed