Hostname: page-component-78c5997874-mlc7c Total loading time: 0 Render date: 2024-11-06T06:45:11.807Z Has data issue: false hasContentIssue false

The High-Temperature Phonon Anomalies of α-uranium.

Published online by Cambridge University Press:  17 May 2012

Peter S. Riseborough*
Affiliation:
Department of Physics, Temple University, Philadelphia, Pa 19122, USA.
Get access

Abstract

There is a growing body of evidence that a number of mixed-valent and heavy-fermion materials show renormalized hybridization gaps either at the Fermi-energy or close to the Fermi-energy. In the former case, a heavy-fermion semiconducting state occurs and in the later case, the system remains metallic at low temperatures. The magnitudes of the hy-bridization gaps are observed to decrease with increasing temperature. The existence of a low-energy electronic energy scale creates a possibility that the Born-Oppenheimer ap-proximation may fail and that there may be a resonant coupling between the phonons and the electronic excitations. Here we argue that such a mechanism may be the cause of the phonon anomalies observed in neutron scattering experiments on the high-temperature phase of alpha-uranium.

Type
Articles
Copyright
Copyright © Materials Research Society 2012

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

[1] Riseborough, P.S., Adv. in Phys. 49, 257320 (2000).Google Scholar
[2] Hundley, M.F., Canfield, P.C., Thompson, J.D., Fisk, Z. and Lawrence, J.M., Phys. Rev. B, 42, 68426845 (1990).Google Scholar
[3] Kasuya, T., Takegahara, K., Fujita, T. and Banai, E., J. Phys. Colloq. 5, 308 (1979).Google Scholar
[4] Kasaya, M., Iga, F., Negishi, K., Nakai, S. and Kasuya, T., J. Mag. Mag. Mat. 3134, 437 (1983).Google Scholar
[5] Severing, A., Thompson, J.D., Canfield, P.C., Fisk, Z. and Riseborough, P.S., Phys. Rev. B, 44, 68326837 (1991).Google Scholar
[6] Riseborough, P.S., Phys. Rev. B, 45, 1398413995 (1992).Google Scholar
[7] Bucher, B., Schlesinger, Z., Canfield, P.C. and Fisk, Z., Phys. Rev. Lett. 72, 522525 (1994).Google Scholar
[8] Riseborough, P.S., Physica B, 199&200, 466 (1994).Google Scholar
[9] Breuer, K., Messerli, S., Purdie, D., Garnier, M., Hengsberger, M., Panaccione, G., Baer, Y., Takahashi, T., Yoshii, S., Kasaya, M., Katoh, K., et al. ., Europhys. Lett. 41, 565570 (1998).Google Scholar
[10] Riseborough, P.S., Phys. Rev. B, 58, 1553415547 (1988).Google Scholar
[11] Iga, F., Kasaya, M. and Kasuya, T., J. Mag. Mag. Mat. 52, 279 (1985).Google Scholar
[12] Hundley, M.F., Canfield, P.C., Thompson, J.D. and Fisk, Z., Phys. Rev. B, 50, 18142 (1994).Google Scholar
[13] Riseborough, P.S., Phys. Rev. B, 69, 235213 (2003).Google Scholar
[14] Hundley, M.F., Thompson, J.D., Canfield, P.C. and Fisk, Z., Physica B, 199, 443444 (1994).Google Scholar
[15] Dordevic, S.V., Basov, D.N., Dilley, N.R., Bauer, E.D. and Maple, M.B., Phys. Rev. Lett. 86, 684687 (2001).Google Scholar
[16] Yang, X-D., Riseborough, P.S. and Durakiewicz, T., J. Phys. CM. 23, 094211 (2011).Google Scholar
[17] Riseborough, P.S. and Yang, X-D., J. Mag. Mag. Mat. 310, 938940 (2007).Google Scholar
[18] Riseborough, P.S. and Yang, X-D., Phys. Rev. B, 82, 094303 (2010).Google Scholar
[19] Manley, M.E., Fultz, B., McQueeney, R.J., Brown, C.M., Hults, W.L., Smith, J.L., Thoma, D.J., Osborn, R. and Robertson, J.L., Phys. Rev. Lett. 86, 3076 (2001).Google Scholar
[20] Manley, M.E., Lander, G.H., Sinn, H., Alatas, A., Hults, W.L., McQueeney, R.J., Smith, J.L. and Willit, J.. Phys. Rev. B, 67, 052302 (2003).Google Scholar
[21] Manley, M.E., Yethiraj, N., Sinn, H., Volz, H.M., Alatas, A., Lashley, J.C., Hults, W.L., Lander, G.H. and Smith, J.L., Phys. Rev. Lett. 96, 125501 (2006).Google Scholar
[22] Manley, M.E., Lynn, J.W., Chen, Y. and Lander, G.H., Phys. Rev. B, 77, 052301 (2008).Google Scholar
[23] Sievers, A.J. and Takeno, S., Phys. Rev. Lett. 61, 970 (1988).Google Scholar
[24] Flach, S. and Willis, C.R., Phys. Rep. 295, 181264 (1998).Google Scholar
[25] Flach, S. and Gorbach, A.V., Phys. Rep. 467, 1116 (2008).Google Scholar
[26] Dashen, R.F., Hasslacher, B. and Neveu, A., Phys. Rev. D, 10, 41144129 (1974): Phys. Rev. D, 11, 3424-3450 (1975).Google Scholar
[27] Manley, M.E., Sievers, A.J., Lynn, J.W., Kiselev, S.A., Agladze, N.I., Chen, Y., Llobet, A., and Alatas, A., Phys. Rev. B, 79, 134304 (2009).Google Scholar
[28] Riseborough, P.S., Phys. Rev. E, 85, 011129 (2012).Google Scholar
[29] Basu, S. and Riseborough, P.S., Philos. Mag. 92, 134144 (2012).Google Scholar
[30] Raymond, S., Bouchet, J., Lander, G.H., Le Tacon, M., Garbarino, G., Hoesch, M., Rueff, J.-P., Krisch, M., Lashley, J.C., Schulze, R.K., and Albers, R.C., Phys. Rev. Lett. 107, 136401 (2011).Google Scholar
[31] Fast, L., Eriksson, O., Johansson, B., Wills, J.M., Straub, G., Roeder, H., Nordstrom, L., Phys. Rev. Lett. 81, 2978 (1998).Google Scholar
[32] Crummett, W.P., Smith, H.G., Nicklow, R.M., Wakabayashi, N., Phys. Rev. B, 19, 6028 (1979).Google Scholar
[33] Smith, H.G., Wakabayashi, N., Crummett, W.P., Nicklow, R.M., Lander, G.H., and Fisher, E.S., Phys. Rev. Lett. 44, 1612 (1980).Google Scholar
[34] Lander, G.H., Fisher, E.S., Wakabayashi, N., Crummett, W.P. and Nicklow, R.M., Physica B&C, 102, 326 (1980).Google Scholar
[35] Krisch, M., Farber, D.L., Xu, R., Antonangeli, D., Aracne, C.M., Beraud, A., Cheng, T-C., Zaretsky, J., Kim, D.Y., Isaev, E.I., Ahuja, R. and Johansson, B., PNAS, 108, 93429345 (2011).Google Scholar
[36] Loa, I., Isaev, E., McMahon, M.I., Kim, D.Y., Johansson, B., Bosak, A. and Krisch, M., Phys. Rev. Lett. 108, 045502 (2012).Google Scholar