Abstract
The frequencies of allB 1u (z) phonon modes predicted by a group-theoretical analysis were measured and found to agree well with recent lattice dynamical calculations for this compound. We report also the determination of two superconducting gap values in YBa2Cu4O8 through phonon self-energy effects in the normal and superconducting conducting state. The gap-to-T c ratios obtained from an analysis of these effects are 2Δ 1/kT c ≦2.5 and 5.8≦2Δ 2/kT c ≦9.2. This coincides with previous results of both phononic and electronic Raman scattering where values of 2.1 and 6.3 were found. We further find anomalous softenings of two phonon modes ∼40 Kabove T c , which correlate with an observed deviation from the linear temperature dependence of the average plasma frequency ν p (T).
Similar content being viewed by others
References
Timusk, T., Tanner, D.B.: In: Physical properties of high temperature superconductors I. Ginsberg, D.M. (ed.), p. 339. Singapore: World Scientific 1989
Feile, R.: Physica C159, 1 (1989)
Schlesinger, Z., Collins, R.T., Holtzberg, F., Feild, C., Koren, G., Cupta, A.: Phys. Rev. B41, 11237 (1990)
Noh, T.W., Sulewski, P.E., Sievers, A.J.: Phys. Rev. B36, 8866 (1987)
Orenstein, J., Thomas, G.A., Rapkine, D.H., Bethea, C.G., Levine, B.F., Cava, R.J., Rietman, E.A., Johnson, D.W., Jr.: Phys. Rev. B36, 729 (1987)
Kress, W., Schröder, U., Prade, J., Kulkarni, A.D., de Wette, F.W.: Phys. Rev. B38, 2906 (1988)
Genzel, L., Wittlin, A., Bauer, M., Cardona, M., Schönherr, E., Simon, A.: Phys. Rev. B40, 2170 (1989)
Thomsen, C., Cardona, M.: Physical properties of high temperature superconductors I. Ginsberg, D.M. (ed.), p. 409. Singapore: World Scientific 1989
Kapitulnik, A.: Physica C153-155, 520 (1988)
Marsh, R., Fleming, R.M., Mandich, M.L., DeSantolo, A.M., Kwo, Y., Hong, U., Martinez-Miranda, L.J.: Nature (London)334, 141 (1988)
Karpinski, J., Kaldis, E., Jilek, E., Rusiecki, S., Bucher, B.: Nature (London)336, 660 (1988)
Bucher, B., Karpinski, J., Kaldis, E., Wachter, P.: Physica C157, 478 (1989)
Bucher, B., Karpinski, J., Kaldis, E., Wachter, P.: Physica C167, 324 (1990)
Krantz, M.C., Rosen, H.J., Macfarlane, R.M., Asmar, N.G., Morris, D.E.: Physica C162-164, 1089 (1989)
Heyen, E.T., Liu, R., Thomsen, C., Kremer, R., Cardona, M., Karpinski, J., Kaldis, E., Rusiecki, S.: Phys. Rev. B41, 11058 (1990)
Liu, Y., Lee, J.Y., Summer, M.J., Sooryakumar, R., Lemberger, T.R.: Phys. Rev. B42, 10090 (1990)
Heyen, E.T., Cardona, M., Karpinski, J., Kaldis, E., Rusiecki, S.: Phys. Rev. B43, 12958 (1991)
Litvinchuk, A.P., Thomsen, C., Murugaraj, P., Cardona, M.: Abstracts of the 11th General Conf. of the Cond. Matter Division of EPS (Exeter, UK, April 1991), p. 147
Ziaei, M.E., Clayman, B.P., Buckley, R.G., Staines, M.P.: Physica C176, 242 (1991)
Litvinchuk, A.P., Thomsen, C., Cardona, M.: In: Sixteenth International Conference on Infrared and Millimeter Waves; Siegrist, M.R., Tran, M.Q., Tran, T.M. (eds.): SPIE1576, 22 (1991)
Buckley, R.G., Staines, M.P., Trodahl, H.J.: Physica C (to be published)
Hasen, R.M., Finger, L.W., Morris, D.E.: Appl. Phys. Lett.54, 1057 (1989)
Bickers, N.E., Scalapino, D.J., Collins, R.T., Schlesinger, Z.: Phys. Rev. B42, 67 (1990)
Kim, K.K., Oitmaa, J., Elcombe, M.M.: Solid State Commun.77, 385 (1991)
Bauer, M.: Ph.D. Dissertation, University of Tübingen, 1990
Thomsen, C., Litvinchuk, A.P., Schönherr, E., Cardona, M.: (to be published)
Friedl, B., Thomsen, C., Cardona, M.: Phys. Rev. Lett.65, 915 (1990)
Thomsen, C., Cardona, M., Friedl, B., Rodriguez, C.O., Mazin, I.I., Anderson, O.K.: Solid State Commun.75, 219 (1990)
Thomsen, C.: Light scattering in solids VI. In: Topics in Applied Physics. Cardona, M., Güntherodt, G. (eds), Vol 68, p. 285. Berlin, Heidelberg, New York: Spinger 1991
Litvinchuk, A.P., Thomsen, C., Cardona, M.: Solid State Commun.80, 257 (1991)
Zeyher, R., Zwicknagl, G.: Z. Phys. B — Condensed Matter78, 175 (1990)
Friedl, B., Thomsen, C., Schönherr, E., Cardona, M.: Solid State Commun.76, 1107 (1990)
Mook, H.A., Mostoller, M., Harvey, J.A., Hill, N.W., Chakoumakos, C., Sales, B.C.: Phys. Rev. Lett.65, 2712 (1990)
Cardona, M., Liu, R., Thomsen, C., Bauer, M., Genzel, L., König, W., Witlin, A., Amador, U., Barahona, M., Fernandez, F., Otero, C., Saez, R.: Solid State Commun.65, 71 (1988)
Kuzmany, K., Sumetsberger, B., Matus, M., Zackmann, G.: Europhys. Lett.12, 703 (1990)
Obhi, H.S., Salje, E.K.H.: Physica C171, 547 (1990)
Gajic, R., Schutzmann, J., Betz, J., Zetterer, T., Otto, H.H., Obermayer, P., Renk, K.F.: Solid State Commun.78, 65 (1991)
Güttler, B., Salje, E., Freeman, P., Blunt, J., Harris, M., Duffield, T., Ager, C.D., Hughes, H.P.: J. Phys.2, 8977 (1990)
Bonn, D.A., O'Reilly, O.H., Greedan, J.E., Stager, C.V., Timusk, T., Kamarás, K., Tanner, T.B.: Phys. Rev. B37, 1574 (1988)
Weber, H.J., Weitbrecht, D., Brach, D., Shelankov, A.L., Keiter, H., Weber, W., Wolf, Th., Geerk, J., Linker, G., Roth, G., Splittgerber-Hünnekes, P.C., Güntherodt, G.: Solid State Commun.76, 511 (1990)
Sulewski, P.E., Noh, T.W., McWhirter, J.T., Sievers, A.J.: Phys. Rev. B36, 5735 (1987)
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Litvinchuk, A.P., Thomsen, C., Murugaraj, P. et al. Far-infrared spectroscopy of the supreconductor YBa2Cu4O8 . Z. Physik B - Condensed Matter 86, 329–335 (1992). https://doi.org/10.1007/BF01323725
Received:
Revised:
Issue Date:
DOI: https://doi.org/10.1007/BF01323725