TITLE

Far-infrared study of alloying in the HgTe-CdTe superlattice

AUTHOR(S)
Perkowitz, S.; Rajavel, D.; Sou, I. K.; Reno, J.; Faurie, J. P.; Jones, C. E.; Casselman, T.; Harris, K. A.; Cook, J. W.; Schetzina, J. F.
PUB. DATE
September 1986
SOURCE
Applied Physics Letters;9/29/1986, Vol. 49 Issue 13, p806
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
The far-infrared reflectivity spectra of three HgTe-CdTe superlattices from two sources [HgTe/CdTe thicknesses (Ã…/Ã…): 64/26, 7/35, 32/57] have been measured at 300, 77, and 6 K. Analysis of transverse optical phonon structure between 80 and 180 cm-1 with different alloying models shows that the first of these superlattices contains HgTe and CdTe with no evidence of significant mixing, whereas the others contain HgTe and homogeneous Hg1-xCdxTe. An earlier study of the HgTe-CdTe band gap also indicated homogeneous alloying. The reflectivity data were analyzed with a superlattice dielectric function which is shown to be valid in the far infrared.
ACCESSION #
9820935

 

Related Articles

  • Shubnikov–de Haas measurements on n- and p-type HgTe-CdTe superlattices. Seiler, D. G.; Ward, G. B.; Justice, R. J.; Koestner, R. J.; Goodwin, M. W.; Kinch, M. A.; Meyer, J. R. // Journal of Applied Physics;7/1/1989, Vol. 66 Issue 1, p303 

    Presents a study which determined free-carrier effective masses in mercury telluride-cadmium telluride superlattices using measurements of oscillatory magnetoresistance. Agreement of the study findings with the predictions of band-structure theory; Details of the Shubnikov-de Haas oscillations...

  • Growth and properties of dilute magnetic semiconductor superlattices containing Hg1-xMnxTe. Harris, K. A.; Hwang, S.; Lansari, Y.; Cook, J. W.; Schetzina, J. F. // Applied Physics Letters;9/22/1986, Vol. 49 Issue 12, p713 

    We report details of the successful growth by molecular beam epitaxy of superlattices containing alternating layers of Hg1-xMnxTe and HgTe. These structures are the first superlattices containing layers of a mercury-based dilute magnetic semiconductor (Hg1-xMnxTe ) to be grown by any thin-film...

  • Infrared properties and band gaps of HgTe/CdTe superlattices. Jones, C. E.; Casselman, T. N.; Faurie, J. P.; Perkowitz, S.; Schulman, J. N. // Applied Physics Letters;7/15/1985, Vol. 47 Issue 2, p140 

    Measurement of the optical transmission spectra of four HgTe/CdTe superlattices grown by molecular beam epitaxy has been carried out at 300 and 30 K to determine the absorption coefficients, refractive indexes, and band-gap energies. In ail cases the optical absorption coefficients reached high...

  • Comparison of band structure calculations and photoluminescence experiments on HgTe/CdTe superlattices grown by molecular beam epitaxy. Kraus, M. M.; Regnet, M. M.; Becker, C. R.; Bicknell-Tassius, R. N.; Landwehr, G. // Journal of Applied Physics;6/1/1992, Vol. 71 Issue 11, p5610 

    Presents a study which compared the band structure calculations and photoluminescence experiments on mercury telluride/cadmium telluride superlattices grown by molecular beam epitaxy. Theoretical considerations; Experimental details; Results and discussion.

  • Plasma-enhanced chemical vapor deposited HgTe-CdTe epitaxial superlattices. Williams, L. M.; Lu, P.-Y.; Chu, S. N. G. // Applied Physics Letters;4/3/1989, Vol. 54 Issue 14, p1329 

    For the first time, small-period epitaxial superlattices were grown using plasma-enhanced chemical vapor deposition. The superlattices were periods of HgTe-CdTe grown on CdTe substrates at 150 °C using dimethylcadmium, dimethylmercury, and dimethyltelluride. Cross-section transmission...

  • Optical nonlinearity in mercury telluride. Wolff, P. A.; Yuen, S. Y.; Harris, K. A.; Cook, J. W.; Schetzina, J. F. // Applied Physics Letters;6/29/1987, Vol. 50 Issue 26, p1858 

    Mercury telluride is shown to have the largest known third-order nonlinear optic susceptibility with response time in the picosecond range. At 10.6 μm and T=300 K, χ(3)=1.6×10-4 esu. The response time, estimated from the dispersion of χ(3), is 5 ps. The effect is attributed to...

  • Self-restoration of p-n junctions in (Hg,Cd)Te. Lyubomirsky, Igor; Lyakhovitskaya, Vera // Applied Physics Letters;11/20/1995, Vol. 67 Issue 21, p3132 

    Investigates silver diffusion into n-type (mercury,cadmium) telluride. Examination of the phenomenon of self restoration of p-n junctions; Invocation of additional stabilizing interactions between dopants; Inconsistence of the behavior with pure kinetic stabilization of the junctions.

  • Plasma enhanced chemical vapor deposition of epitaxial mercury telluride. Williams, L. M.; Lu, P.-Y.; Wang, C.-H.; Parsey, J. M.; Chu, S. N. G. // Applied Physics Letters;11/23/1987, Vol. 51 Issue 21, p1738 

    Epitaxial layers of mercury telluride were deposited onto cadmium telluride substrates at 85 °C using a glow discharge to enhance the reaction between dimethylmercury and dimethyltelluride. Hall-effect measurements showed the material to be n type with room-temperature and 77 K carrier...

  • Calculated temperature dependence of the band gap of HgTe-CdTe superlattices. Guldner, Y.; Bastard, G.; Voos, M. // Journal of Applied Physics;2/15/1985, Vol. 57 Issue 4, p1403 

    Presents calculations of the band gap and of the corresponding cutoff wavelength of mercury telluride-cadmiumtelluride superlattices. Use of an envelope function approximation to calculate the superlattice band structure and a resulting band gap; Calculations of the band gap and of the cutoff...

Share

Read the Article

Courtesy of VIRGINIA BEACH PUBLIC LIBRARY AND SYSTEM

Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics