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Nuclear spin conversion of methane in pure and rare-gas mixed crystals

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Zeitschrift für Physik B Condensed Matter

Abstract

Spin species conversion has been observed by means of neutron scattering. Methane, matrixisolated in rare-gas crystals has been investigated by measuring the time dependence of the detailed balance factor of inelastic neutron spectra. The temperature dependence of conversion rates in the interval between 2 and 5 K turns out to be stronger than predicted by a single phonon process. In general, conversion times are of the order of hours in this temperature region. The influence of the matrix is well described by a coupled phonon density of states. Crystals of pure and krypton doped methane have been examined by measuring the time dependence of the total neutron scattering cross section. For pure methane, the temperature dependence of the conversion rates shows two regimes for both free rotator and ordered molecules. Below 5 K, the behavior is described by a single phonon process and above by an Arrhenius law. Rates are enhanced by krypton dotation, which is explained by changed level spacings due to orientational disorder.

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References

  1. Press, W.: Single-particle rotation in molecular crystals. Springer Tracts in Modern Physics, Vol. 92. Berlin, Heidelberg, New York, Springer: 1981

    Google Scholar 

  2. Kataoka, Y., Press, W., Buchenau, U., Spitzer, H.: In: Neutron inelastic scattering. Wien: IAEA p. 231. 1978

    Google Scholar 

  3. Asmussen, B., Gerlach, P., Press, W., Prager, M., Blank, H.: J. Chem. Phys.90, 400 (1989)

    Google Scholar 

  4. Ozaki, Y.: J. Phys. Soc. Jpn.59, 1277 (1990)

    Google Scholar 

  5. Asmussen, B.: PhD Thesis, Universität Kiel 1991

  6. Prager, M., Asmussen, B., Press, W., Blank, H., Carlile, C.J.: J. Chem. Phys.95, 569 (1991)

    Google Scholar 

  7. Asmussen, B., Prager, M., Press, W., Blank, H., Carlile, C.J.: J. Chem. Phys. (to appear)

  8. Pollack, G.L.: Rev. Mod. Phys.36, 748 (1964)

    Google Scholar 

  9. Greer, S.C., Meyer, L.: Z. Angew. Phys.27, 198 (1969)

    Google Scholar 

  10. Aadsen, D.R.: PhD Thesis, University of Illinois, Urbana 1975

  11. Stackelberg, M. v., Quatram, F., Antweiler-Bonn, H.J.: Z. Elektrochem.42, 552 (1936)

    Google Scholar 

  12. Veith, H., Schröder, E.: Z. Phys. Chem. Abt. A179, 16 (1937)

    Google Scholar 

  13. Greer, S.C.: Phys. Lett. A43 73 (1973)

    Google Scholar 

  14. Yasuda, H.: Prog. Theor. Phys.45, 1361 (1971)

    Google Scholar 

  15. James, H.M., Keenan, T.A.: J. Chem. Phys.31, 12 (1959)

    Google Scholar 

  16. Press, W.: J. Chem. Phys.56, 2597 (1972)

    Google Scholar 

  17. Hüller, A.: Phys. Rev. B16, 1844 (1977)

    Google Scholar 

  18. Yamamoto, T., Kataoka, Y., Okada, K.: J. Chem. Phys.66, 2701 (1977)

    Google Scholar 

  19. Eucken, A., Veith, H.: Z. Phys. Chem. Abt. B34, 275 (1936)

    Google Scholar 

  20. De Wit, G.A., Bloom, M.: Can. J. Phys.47, 1195 (1969)

    Google Scholar 

  21. Calvani, P., Casieri, C., De Luca, F., Maraviglia, B.: Phys. Lett.86a, 490 (1981); Calvani, P., De Luca, F., Maraviglia, B.: Phys. Lett. A96, 212 (1983); Calvani, P., Glättli, H.: Solid State Commun.50, 169 (1984); Calvani, P., Glättli, H.: J. Chem. Phys.83, 1822 (1985)

    Google Scholar 

  22. Grondey, S., Prager, M., Press, W., Heidemann, A.: J. Chem. Phys.85, 2204 (1986); Grondey, S., Prager, M., Press, W.: J. Chem. Phys.86, 6465 (1987)

    Google Scholar 

  23. Colwell, J.H., Gill, E.K., Morrison, J.A.: J. Chem. Phys.36, 2223 (1962),39, 635 (1963),42, 3144 (1965); Colwell, J.H.: J. Chem. Phys.51, 3820 (1969)

    Google Scholar 

  24. Frayer, F.H., Ewing, G.E.: J. Chem. Phys.48, 781 (1968)

    Google Scholar 

  25. Runolfsson, Ö, Mango, S.: Phys. Lett. A28, 254 (1968)

    Google Scholar 

  26. Wong, K.P., Noble, J.D., Bloom, M., Alexander, S.: J. Magn. Reson.1, 55 (1969)

    Google Scholar 

  27. Van Hecke, P., Grobet, P., Van Gerven, L.: J. Magn. Reson.7, 117 (1972)

    Google Scholar 

  28. Van Hecke, P., Van Gerven, L.: Physica68, 359 (1973)

    Google Scholar 

  29. Piott, J.E., McCormick, W.D.: Can. J. Phys.54, 1784 (1976)

    Google Scholar 

  30. Code, R.F., Higinbotham, J.: Can. J. Phys.54, 1248 (1976)

    Google Scholar 

  31. Vogt, G.J., Pitzer, K.S.: J. Chem. Thermodyn.8, 1011 (1976)

    Google Scholar 

  32. Lushington, K.J., Morrison, J.A.: Can. J. Phys.55, 1580 (1977)

    Google Scholar 

  33. Higinbotham, J., Wood, B.M., Code, R.F.: Phys. Lett. A66, 237 (1978)

    Google Scholar 

  34. Bouchet, B., Glättli, H.: J. Phys. (Paris) Lett.42, 159 (1981)

    Google Scholar 

  35. Buchman, S., Candela, D., Vetterling, W.T., Pound, R.V.: Phys. Rev. B26, 1459 (1982)

    Google Scholar 

  36. Agostinelli, E., Calvani, P.: Phys. Lett. A95, 118 (1983)

    Google Scholar 

  37. Motizuki, K., Nagamiya, T.: J. Phys. Soc. Jpn.11, 93, (1956)

    Google Scholar 

  38. Berlinsky, A.J., Hardy, W.N.: Phys. Rev. B8, 5013 (1973)

    Google Scholar 

  39. Silvera, J.F.: Rev. Mod. Phys.52, 399 (1980)

    Google Scholar 

  40. Nijman, A.J., Berlinsky, A.J.: Phys. Rev. Lett.38, 408 (1977); Nijman, A.J., Berlinsky, A.J.: Can. J. Phys.58, 1049 (1980)

    Google Scholar 

  41. Curl, Jr. R.F., Kasper, J.V.V., Pitzer, K.S.: J. Chem. Phys.46, 3220 (1967)

    Google Scholar 

  42. Kim, J.J., Pitzer, K.S.: J. Chem. Phys.66, 2400 (1977)

    Google Scholar 

  43. Press, W., Heidemann, A., Lauter, H., Morrison, J.A., Neumaier, K.: Can. J. Chem.66, 686 (1988)

    Google Scholar 

  44. Heidemann, A., Lushington, K.J., Morrison, J.A., Neumaier, K., Press, W.: J. Chem. Phys.81, 5799 (1984)

    Google Scholar 

  45. Häusler, W.: Z. Phys. B—Condensed Matter81, 265 (1990)

    Google Scholar 

  46. Würger, A.: Z. Phys. B—Condensed Matter81, 273 (1990)

    Google Scholar 

  47. Inaba, A., Chihara, H., Morrison, J.A., Blank, H., Heidemann, A., Tomkinson, J.: J. Phys. Soc. Jpn.59, 522 (1990)

    Google Scholar 

  48. Vandemaele, G., Buekenhoudt, A., Van Gerven, L.: J. Magn. Reson.89, 522 (1990)

    Google Scholar 

  49. Blank, H., Maier, B.: The Yellow Book—Guide to Neutron Research Facilities at the ILL. Grenoble: Institut Max von Laue-Paul Langevin 1988

    Google Scholar 

  50. Hüller, A., Prager, M.: Solid State Commun.29, 537 (1979)

    Google Scholar 

  51. Ozaki, Y., Kataoka, Y., Yamamoto, T.: J. Chem. Phys.73, 3442 (1980); Ozaki, Y., Kataoka, Y., Okada, K., Yamamoto, T.: Can. J. Phys.59, 275 (1981)

    Google Scholar 

  52. Vineyard, G.H.: Phys. Rev.96, 93 (1954)

    Google Scholar 

  53. Häusler, W.: Private communication 1990

  54. Grieger, S., Friedrich, H., Asmussen, B., Guckelsberger, K., Nettling, D., Press, W., Scherm, R.: (to be published)

  55. Barker Jr. A.S., Sievers, A.J.: Rev. Mod. Phys.47 [Suppl. 2], S1 (1975)

    Google Scholar 

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Authors and Affiliations

  1. Institut für Experimentalphysik, Universität Kiel, Leibnizstrasse 19, W-2300, Kiel 1, Germany

    S. Grieger, B. Asmussen, D. Nettling & W. Press

  2. Physikalisch-Technische Bundesanstalt, Bundesallee 100, W-3300, Braunschweig, Germany

    H. Friedrich, K. Guckelsberger & R. Scherm

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  1. S. Grieger
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  2. H. Friedrich
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  3. B. Asmussen
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  4. K. Guckelsberger
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  5. D. Nettling
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  6. W. Press
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  7. R. Scherm
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Grieger, S., Friedrich, H., Asmussen, B. et al. Nuclear spin conversion of methane in pure and rare-gas mixed crystals. Z. Physik B - Condensed Matter 87, 203–211 (1992). https://doi.org/10.1007/BF01315649

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  • DOI: https://doi.org/10.1007/BF01315649

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