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2001 | 99 | 3-4 | 337-343
Article title

Analysis of Possible Scattering Processes for Bloch Positronium in Ionic Crystals at Elevated Temperatures

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EN
Abstracts
EN
The role of nonpolar optic phonon scattering and of umklapp acoustic phonon scattering is analyzed for a delocalized positronium atom in ionic crystals at elevated temperatures. At temperatures above which they become essential both of these scattering mechanisms contribute to the imaginary self-energy of positronium renormalizing its acoustic deformation potential constant. It was such a renormalization that was recently observed experimentally for delocalized positronium in MgF_2 crystal. We put forward the theoretical explanation of these experiments based upon the model of nonpolar optic phonon scattering of positronium. An effect analogous to that observed in MgF_2 is predicted for crystalline quartz above the temperature of (α-β)-phase transition.
Keywords
Year
Volume
99
Issue
3-4
Pages
337-343
Physical description
Dates
published
2001-03/04
received
2000-09-18
References
  • 1. J. Kasai, T. Hyodo, K. Fujiwara, J. Phys. Soc. Jpn., 57, 329, 1988 and refs. therein
  • 2. I.V. Bondarev, T. Hyodo, Phys. Rev. B, 57, 11341, 1998
  • 3. I.V. Bondarev, Phys. Rev. B, 58, 12011, 1998
  • 4. Y. Nagai, M. Kakimoto, H. Ikari, T. Hyodo, Mater. Sci. Forum, 255-257, 596, 1997
  • 5. Y. Nagai, M. Kakimoto, T. Hyodo, K. Fujiwara, H. Ikari, M. Eldrup, A. Stewart, Phys. Rev. B, 62, 5531, 2000
  • 6. G.D. Mahan, Many-Particle Physics, Plenum, New York 1981
  • 7. B.K. Ridley, Quantum Processes in Semiconductors, Clarendon, Oxford 1982
  • 8. O.V. Boev, K.P. Arefiev, Izv. Vyssh. Uchebn. Zaved. Fiz., 25, 118, 1982 [Sov. Phys. J., 25, 37, 1982]
  • 9. A.S. Davydov, Theory of Solids, Nauka, Moscow 1976 (in Russian)
  • 10. I.V. Bondarev, Pis'ma Zh. Eksp. Teor. Fiz., 69, 215, 1999 [JETP Lett., 69, 231, 1999]
  • 11. Y. Toyozawa, Prog. Theor. Phys., 26, 29, 1961
  • 12. G.L. Bir, G.E. Pikus, Fiz. Tverd. Tela, 2, 2287, 1960 [Sov. Phys.-Solid State, 2, 2039, 1961]
  • 13. G.L. Bir, G.E. Pikus, Symmetry and Deformation Effects in Semiconductors, Nauka, Moscow 1972 (in Russian)
  • 14. K.S. Aleksandrov, L.A. Shabanova, V.I. Zinenko, Phys. Status. Solidi., 33, K1, 1969
  • 15. American Institute of Physics Handbook, Ed. D.E. Gray, McGraw-Hill, New York 1972
  • 16. M. Neuberger, Handbook of Electronic Materials, Plenum, New York 1971
  • 17. Acoustic Crystals, Ed. M.P. Shaskolskaya, Nauka, Moscow 1982 (in Russian)
Document Type
Publication order reference
YADDA identifier
bwmeta1.element.bwnjournal-article-appv99n304kz
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