Spin Relaxation of Atomic Hydrogen in Fused Silica: Temperature Dependence

D. W. Feldman; J. G. Castle, Jr; G. R. Wagner

doi:10.1103/PhysRev.145.237

Access by Xinjiang University

Spin Relaxation of Atomic Hydrogen in Fused Silica: Temperature Dependence

D. W. Feldman, J. G. Castle, Jr., and G. R. Wagner

Westinghouse Research Laboratories, Pittsburgh, Pennsylvania

PDF

Phys. Rev. 145, 237 – Published 6 May, 1966

DOI: https://doi.org/10.1103/PhysRev.145.237

Abstract

An unusual temperature dependence has been found for the spin-lattice relaxation time $T_{1}$ of the hydrogen atoms trapped in fused silica; $\frac{1}{T_{1}}$ is found to vary strongly with temperature in the range between 2 and 20°K and to approach proportionality to $T$ above 20°K. After removal of some of the hydrogen centers by thermal annealing, the relaxation is slower but has essentially the same temperature dependence. The data are interpreted in terms of a localized resonance mode of vibration having a large temperature-independent amplitude in the neighborhood of the hydrogen spin. The model proposed by Murphy fits the data accurately over four decades in $T_{1}$ with a characteristic frequency of 2.8 ( $10^{11}$ ) cps.

References (13)

J. L. Hall and R. T. Schumacher, Phys. Rev. 127, 1892 (1962) B. Welber, ibid. 136, A1408 (1964)
D. W. Feldman, J. G. Castle, Jr., and J. Murphy, Phys. Rev. 138, A1208 (1965)
R. A. Weeks and M. Abraham, J. Chem. Phys. 42, 68 (1965)
[3]
J. G. Castle, Jr., and D. W. Feldman, Phys. Rev. 137, A671 (1965)
J. G. Castle, Jr., and D. W. Feldman, J. Appl. Phys. 36, 124 (1965)
J. Murphy, following paper, Phys. Rev. 145, 241 (1966)
J. G. Castle, Jr., D. W. Feldman, P. G. Klemens, and R. A. Weeks, Phys. Rev. 130, 577 (1963)
R. W. Warren, D. W. Feldman, and J. G. Castle, Jr., Phys. Rev. 136, A1347 (1964)
R. Orbach, Proc. Roy. Soc. (London) A264, 458 (1961)
P. Flubacher, A. J. Leadbetter, J. A. Morrison, and B. P. Stoicheff, J. Phys. Chem. Solids 12, 53 (1959)
C. K. Jones, P. G. Klemens, and J. A. Rayne, Phys. Letters 8, 31 (1964)
J. T. Krause, J. Am. Ceram. Soc. 47, 103 (1964)

[c1] J. L. Hall and R. T. Schumacher, Phys. Rev. 127, 1892 (1962) B. Welber, ibid. 136, A1408 (1964)

[c2] D. W. Feldman, J. G. Castle, Jr., and J. Murphy, Phys. Rev. 138, A1208 (1965)

[c3] R. A. Weeks and M. Abraham, J. Chem. Phys. 42, 68 (1965)

[c4] [3]

[c5] J. G. Castle, Jr., and D. W. Feldman, Phys. Rev. 137, A671 (1965)

[c6] J. G. Castle, Jr., and D. W. Feldman, J. Appl. Phys. 36, 124 (1965)

[c7] J. Murphy, following paper, Phys. Rev. 145, 241 (1966)

[c8] J. G. Castle, Jr., D. W. Feldman, P. G. Klemens, and R. A. Weeks, Phys. Rev. 130, 577 (1963)

[c9] R. W. Warren, D. W. Feldman, and J. G. Castle, Jr., Phys. Rev. 136, A1347 (1964)

[c10] R. Orbach, Proc. Roy. Soc. (London) A264, 458 (1961)

[c11] P. Flubacher, A. J. Leadbetter, J. A. Morrison, and B. P. Stoicheff, J. Phys. Chem. Solids 12, 53 (1959)

[c12] C. K. Jones, P. G. Klemens, and J. A. Rayne, Phys. Letters 8, 31 (1964)

[c13] J. T. Krause, J. Am. Ceram. Soc. 47, 103 (1964)

Physical Review Journals Archive

Export citation

Export citation

Spin Relaxation of Atomic Hydrogen in Fused Silica: Temperature Dependence

Abstract

References (13)

Outline

Information

Filter

Filter

Article Lookup

Enter a citation