Abstract
Nuclear spin relaxation experiments with 8Li adsorbed on various surfaces provide new information in surface science which is not obtainable othervise. Both dipolar (Korringa) and quadrupolar relaxation due to diffusion are observed. However, in addition, a fast and presently not understood spin relaxation mechanism is present while dosing during the first 0.5 s the surface with polarized 8Li. Most strange in this respect is the fact that those 8Li atoms which survive depolarization through this mechanism depolarize afterwards with modest spin lattice relaxation rates. The origin of the fast spin lattice relaxation mechanism is presently unknown.
Similar content being viewed by others
References
A. Abragam, Principles of Nuclear Magnetism(Clarendom Press, Oxford, 1986).
C.P. Slichter, Principle of Nuclear Magnetic Resonance, 3rd edn. (Springer, Heidelberg, 1990).
J. Christiansen, ed., Hyperfine Interaction of Radioactive Nuclei, Topics in Current Physics, Vol. 31 (Springer, Heidelberg, 1983).
D. Fick, Appl. Phys. A 49 (1989) 343.
M. Riehl-Chudoba, U. Memmert and D. Fick, Surf. Sci. 245 (1991) 180.
M. Riehl-Chudoba and D. Fick, Surf. Sci. 251/252 (1991) 97.
M. Kaack and D. Fick, Phys. Rev. B 51 (1995) 17902.
J. Chrost and D. Fick, Surf. Sci. 251/252 (1991).
J. Chrost and D. Fick, Surf. Sci. 343 (1995) 157.
M. Eckhardt, J. Chrost and D. Fick, Surf. Sci. 366 (1996) 275.
H.J. Jänsch, E. Koch, W. Dreves and D. Fick, J. Phys. D 17 (1984) 231.
H.J. Andrä, H.J. Plöhn, A. Gaupp and R. Fröhling, Z. Physik A 281 (1977) 15.
W. Widdra et al., Rev. Sci. Instrum. 66 (1995) 2465.
M. Detje et al., J. Vac. Sci. Technol. A 95 (1995) 2532.
H.D. Ebinger et al., Surf. Sci. 331–333 (1995) 759.
H.J. Jänsch et al., Phys. Rev. Lett. 75 (1995) 120.
H.D. Ebinger et al., Phys. Rev. Lett. 76 (1996) 656.
W. Preyß, Ph.D. thesis, University of Marburg (1994).
S.R. de Groot, H.A. Tolhoek and W.J. Huiskamp, in: Alpha, Beta and Gamma Ray Spectroscopy, Vol. 2, ed. K.G. Siegbahn (North-Holland, Amsterdam, 1965) p. 1201.
D. Fick, G. Grawert and I.M. Turkiewicz, Phys. Rep. 214 (1992) 1.
R.C. Hanna, in: Proc. 2nd Int. Symp. on Polarization Phenomena in Nucleons, Karlsruhe, 1965, eds. P. Huber and H. Schopper (Birkhäuser, Basel, 1966) p. 280.
L.L. Lauderback and W.N. Delgass, Surf. Sci. 172 (1986) 715.
H. Pfnür, P. Feulner and D. Menzel, J. Chem. Phys. 79 (1983) 4613.
C. Polenz et al., Surf. Sci., submitted.
K.L. Kostov, H. Rauscher and D. Menzel, Surf. Sci. 278 (1992) 62.
H.D. Ebinger, Ph.D. thesis, University of Marburg (1994).
G. Pötschke et al., Surf. Sci. 251/252 (1995) 592.
R. Veith, Ph.D. thesis, University of Marburg (1996).
W. Kern, Semicond. Int. (1984) p. 94.
R.S. Becker et al., Phys. Rev. B 39 (1989) 1683.
B.G. Koehler et al., J. Chem. Phys. B 88 (1988) 1709.
R.M. Wallace, C.C. Cheng and P.A. Taylor, Appl. Surf. Sci. 45 (1990) 201.
G. Schulze and M. Henzler, Surf. Sci. 124 (1983) 336.
D.L. Doering and S. Semancik, Surf. Sci. 175 (1986) L730.
W. Preyß et al., Surf. Sci. 373 (1997) 33.
D.L. Doering and T.E. Madley, Surf. Sci. 123 (1982) 305.
P.J. Schmitz et al., Surf. Sci. 186 (1987) 219.
P.M. Richards, Solid State Commun. 25 (1978) 1019.
W. Kucher, P. Heitjans, A. Payer and P. Schöllborn, Solid State Ionics 70/71 (1994) 434.
H.J. Jänsch et al., Nucl. Phys. A 568 (1994) 544.
E.A.C. Lucken, Nuclear Quadrupole Coupling Constants(Academic Press, London, 1969).
M. Bickert, W. Widdra and D. Fick, Surf. Sci. 251/252 (1991) 931.
H.-J. Stöckmann and P. Heitjans, J. Non-Crystalline Solids 66 (1984) 501.
H.-D. Ebinger et al., submitted to Phys. Rev. B.
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Preyss, W., Detje, M., Ebinger, HD. et al. Nuclear spin relaxation of 8Li adsorbed on surfaces. Hyperfine Interactions 110, 295–312 (1997). https://doi.org/10.1023/A:1012656306817
Issue Date:
DOI: https://doi.org/10.1023/A:1012656306817