Soft Librational Mode Detection Via Nuclear Quadrupole Resonance

G. P. O'Leary

doi:10.1103/PhysRevLett.23.782

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Soft Librational Mode Detection Via Nuclear Quadrupole Resonance

G. P. O'Leary^*

Mason Laboratory, Yale University, New Haven, Connecticut 06520

^*Present address: Oregon Graduate Center, Portland, Ore. 97225.

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Phys. Rev. Lett. 23, 782 – Published 6 October, 1969

DOI: https://doi.org/10.1103/PhysRevLett.23.782

Abstract

The temperature variation of pure nuclear quadrupole resonance frequencies provides a new tool for the detection of soft librational modes in spectrographically inaccessible regions. Data taken on $K_{2}$ Re ${Cl}_{6}$ above its 110.9°K phase transition are presented and are shown to imply a marked temperature dependence of the frequency of the $k = 0$ rotary mode.

References (13)

K. R. Jeffrey and R. L. Armstrong, Phys. Rev. 174, 359 (1968)
G. P. O'Leary and R. G. Wheeler, to be published
H. Bayer, Z. Physik 130, 227 (1951)
B. Aminoff, Z. Krist. 94, 246 (1936)
L. A. Woodward and M. J. Ware, Spectrochim. Acta 20, 711 (1964)
D. M. Adams and H. A. Gebbie, Spectrochim. Acta 19, 925 (1963)
R. Ikeda, D. Nakumura, and M. Kubo, J. Phys. Chem. 69, 2101 (1965)
L. V. Clouter, K. S. Pitzer, and W. M. Latimer, J. Am. Chem. Soc. 62, 2845 (1940)
P. B. Dorain and R. G. Wheeler, J. Chem. Phys. 45, 1172 (1966)
R. H. Busey, H. H. Dearman, and R. B. Bevan, Jr., J. Phys. Chem. 66, 82 (1962)
L. D. Landau, Physik. Z. Sowjetunion 11, 26 (1937) L. D. Landau and E. M. Lifshitz, Statistical Physics (Pergamon Press, London, England, 1958), Chap. 14
[2]
T. Kushida, G. B. Benedek, and N. Bloembergen, Phys. Rev. 104, 1364 (1956)

[c1] K. R. Jeffrey and R. L. Armstrong, Phys. Rev. 174, 359 (1968)

[c2] G. P. O'Leary and R. G. Wheeler, to be published

[c3] H. Bayer, Z. Physik 130, 227 (1951)

[c4] B. Aminoff, Z. Krist. 94, 246 (1936)

[c5] L. A. Woodward and M. J. Ware, Spectrochim. Acta 20, 711 (1964)

[c6] D. M. Adams and H. A. Gebbie, Spectrochim. Acta 19, 925 (1963)

[c7] R. Ikeda, D. Nakumura, and M. Kubo, J. Phys. Chem. 69, 2101 (1965)

[c8] L. V. Clouter, K. S. Pitzer, and W. M. Latimer, J. Am. Chem. Soc. 62, 2845 (1940)

[c9] P. B. Dorain and R. G. Wheeler, J. Chem. Phys. 45, 1172 (1966)

[c10] R. H. Busey, H. H. Dearman, and R. B. Bevan, Jr., J. Phys. Chem. 66, 82 (1962)

[c11] L. D. Landau, Physik. Z. Sowjetunion 11, 26 (1937) L. D. Landau and E. M. Lifshitz, Statistical Physics (Pergamon Press, London, England, 1958), Chap. 14

[c12] [2]

[c13] T. Kushida, G. B. Benedek, and N. Bloembergen, Phys. Rev. 104, 1364 (1956)

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Soft Librational Mode Detection Via Nuclear Quadrupole Resonance

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