Abstract
The interaction of Mössbauer radiation with the nuclei in a single crystal provides the unique possibility to enhance the coherent channel in nuclear resonance scattering by means of a properly phased excitation of the scattering centers. When a primary beam is incident in the exact Bragg direction, all nuclei are excited in phase. The resonance parameters of such a collective nuclear excitation of a perfect single crystal (γ-exciton) are entirely different from those of an individual nuclear excitation. In Bragg geometry diffraction, the resonance lines are shifted and broadened (enhancement effect), the lifetime of the collective excited state is shortened (speedup effect) and the reflectivity becomes total (suppression effect). Recent experiments arc reviewed, where these effects were studied in the resonant diffraction of Mössbauer and of synchrotron radiation.
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References
Yu.V. Shvydko and G.V. Smirnov, J. Phys. C, to be submitted.
G.V. Smirnov, Hyp. Int. 27(1986)203.
U. van Bürck, Hyp. Int. 27(1986)219.
G.T. Trammell,Chemical Effects of Nuclear Transformations, Vol. 1 (Int. Atomic Energy Agency, Vienna, 1961) p. 75.
Yu. Kagan, A.M. Afanasev and I.P. Perstnev, ZhEFT 54(1968)1530 (Sov. Phys. JETP 27(1968)819).
J.P. Hannon and G.T. Trammell, Phys. Rev. 186(1969)306.
Yu. Kagan, A.M. Afanasev and V.G. Kohn, J. Phys. C12(1979)615.
J.P. Hannon, G.T. Trammell, S.L. Ruby and P. Flinn, to be submitted.
N.E. Rehler and J.H. Eberly, Phys. Rev. A3(1971)1735.
L.D. Landau and E.M. Lifshitz, in:Electrodynamics of Continuous Media (Pergamon, Oxford, 1960), Ch. 97.
A.M. Afanasev and Yu. Kagan, ZhETF-Pis. 2(1965)130 (JETP Lett. 2(1965)81).
H.J. Lipkin, Phys. Rev. Lett. 58(1987)1176.
G.T. Trammell and J.P. Hannon, Phys. Rev. Lett. 61(1988)653.
M. Kotrbova, S. Kadeckova, J. Novak, J. Bradler, G.V. Smirnov and Yu.V. Shvydko, J. Cryst. Growth 71(1985)607.
U. van Bürck, G.V. Smirnov, R.L. Mössbauer, H.J. Maurus and N.A. Semioschkina, J. Phys. C13(1980)4511.
H.J. Maurus, U. van Bürck, G.V. Smirnov and R.L. Mössbauer, J. Phys. C17(1984)1991.
U. van Bürck, G.V. Smirnov and R.L. Mössbauer, J. Phys. C21(1988), in press.
E. Burkel, J. Peisl and B. Dorner, Europhys. Lett. 3(1987)957.
U. van Bürck et al., to be submitted.
G.V. Smirnov, Yu.V. Shvydko, O.S. Kolotov, V.A. Pogozhev, M. Kotrbova, S. Kadeckova and J. Novak, ZhETF 86(1984)1495 (Sov. Phys. JETP 59(1984)875).
G.V. Smirnov and Yu.V. Shvydko, ZhETF-Pis. 44(1986)431 (JETP Lett. 44(1986)556).
G.T. Trammell and J.P. Hannon, Phys. Rev. B18(1978)165; 19(1979)3835.
E. Gerdau, R. Rüffer, R. Hollatz and J.P. Hannon, Phys. Rev. Lett. 57(1986)1141.
R. Rüffer, E. Gerdau, R. Hollatz and J.P. Hannon, Phys. Rev. Lett. 58(1987)2359.
A.I. Chechin, N.V. Andronova, M.V. Zelepukhin, A.N. Artemev and E.P. Stepanov, ZhETF-Pis. 37(1983)531 (JETP Lett. 37(1983)633).
U. van Bürck, R.L. Mössbauer, E. Gerdau, R. Rüffer, R. Hollatz, G.V. Smirnov and J.P. Hannon, Phys. Rev. Lett. 59(1987)355.
G. Faigel, D.P. Siddons, J.B. Hastings, P.E. Haustein, J.R. Grover and L.E. Berman, Phys. Rev. Lett., submitted.
S.L. Ruby et al., Phys. Rev. Lett., to be submitted.
G. Faigel, D.P. Siddons, J.B. Hastings, P.E. Haustein, J.R. Grover, J.P. Remeika and A.S. Cooper, Phys. Rev. Lett. 58(1987)2699.
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van Bürck, U. Enhancement and speedup in nuclear resonant diffraction. Hyperfine Interact 47, 127–137 (1989). https://doi.org/10.1007/BF02351604
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DOI: https://doi.org/10.1007/BF02351604