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Applied Optics

Applied Optics


  • Vol. 11, Iss. 9 — Sep. 1, 1972
  • pp: 1928–1935

Measurement and Analysis of the Reflectance Spectra of SiP2

John R. Barkley  »View Author Affiliations

Applied Optics, Vol. 11, Issue 9, pp. 1928-1935 (1972)

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New experimental and analytical techniques are used to derive information on the electronic band structure of SiP2, a semimetal having a pyrite structure. The ir reflectivity can be described by a two-carrier model having effective charge density to mass ratios of 0.152 and 0.0273 with relaxation times of 1.07 and 0.66 × 10−14 sec, respectively. This model yields a dc conductivity of 1.07 × 106 mho/m in agreement with measured values. Interband transitions at 1.97 eV, 2.69 eV, 3.45 eV, 3.95 eV, and 4.42 eV were defined from structure in the imaginary part of the dielectric constant and from piezoreflectance data.

© 1972 Optical Society of America

Original Manuscript: October 28, 1971
Published: September 1, 1972

John R. Barkley, "Measurement and Analysis of the Reflectance Spectra of SiP2," Appl. Opt. 11, 1928-1935 (1972)

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  1. H. R. Philipp, H. Ehrenreich, in Semiconductors and Semi-metals, R. K. Willardson, A. C. Beer, Eds. (Academic, New York, 1967), Vol. 3, p. 105.
  2. S. M. Marcus, P. C. Donohue, Phys. Rev. 183, 668 (1969). [CrossRef]
  3. P. C. Donohue, W. J. Siemons, J. L. Gillson, J. Phys. Chem. Solids 29, 807 (1968). [CrossRef]
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  6. M. Cardona, in Modulation Spectroscopy, F. Seitz, D. Turn-bull, H. Ehrenreich, Eds. (Academic, New York, 1969), p. 89.
  7. The microspecular reflectance attachments are available as model 126 from Barnes Engineering, Stamford, Conn., for the Perkin-Elmer 221; as Special Product 50-502-000 from Cary Instruments, Monrovia, Calif.
  8. Aluminum mirrors were fabricated by Denton Vacuum, Inc., Cherry Hill, N.J.
  9. J. Strong, Procedures in Experimental Physics (Prentice Hall, New York, 1938).
  10. B. H. Billings, J. Opt. Soc. Am. 41, 966 (1951). The calcite plates fabricated for use as depolarizers are available from Karl Lambrecht Corp., Chicago, Ill. [CrossRef]
  11. F. L. McCackin, E. Passaglia, R. R. Stromberg, H. L. Steinberg, J. Res. Nat. Bur. Stand. (U.S.) 67A, 363 (1963). [CrossRef]
  12. The adhesive bonding sample and ceramic transducer is Torr Seal available from Varian, Vacuum Division.
  13. W. E. Engeler, H. Fritzsche, M. Garfinkel, J. J. Tiemann, Phys. Rev. Lett. 14, 1069 (1965). [CrossRef]
  14. S. Roberts, Phys. Rev. 114, 104 (1959). [CrossRef]
  15. N. F. Mott, H. Jones, The Theory of the Properties of Metals and Alloys (Dover, New York, 1958), p. 111.
  16. J. P. Chandler, “Stepit—Minimum of a Function of Several (N) Variables,” Program 66, Quantum Chemistry Program Exchange, Indiana University.
  17. J. L. Gillson, of this Laboratory, private communication.
  18. A. H. Wilson, The Theory of Metals (Cambridge U. P., London, 1958), p. 213.
  19. P. E. Bierstedt, of this Laboratory, private communication of unpublished results.
  20. Derivation in Appendix done by J. D. Bierlein of this laboratory.
  21. W. A. Shurcliff, Polarized Light, Production and Use (Harvard, U. P., Cambridge, 1966).

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