Abstract
The electronic Raman scattering in LuB12 single crystals of various isotope compositions is studied in the temperature range 10–650 K. The shape and the energy position of spectral maxima depend on the direction and magnitude of a probe wavevector, the temperature, and the excitation symmetry and remain unchanged when the isotope composition changes. Experimental spectra are compared with the spectra simulated on the basis of a calculated electronic structure. The experimental results are successfully described when the electron spectrum renormalization effects caused by electron–phonon coupling are taken into account. This confirms that the origin of the observed spectra in LuB12 is due to Raman scattering by electrons. A comparison of the calculated and experimental data makes it possible to determine the coupling constant (λ ep = 0.32) that gives the correct superconducting transition temperature.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
T. P. Devereaux and R. Hackl, Rev. Mod. Phys. 79, 175 (2007).
A. A. Abrikosov and V. M. Genkin, Sov. Phys. JETP 38, 417 (1974).
A. Zawadowski and M. Cardona, Phys. Rev. B 42, 10732 (1990).
M. V. Klein and S. B. Dierker, Phys. Rev. B 29, 4976 (1984).
I. P. Ipatova, M. I. Kaganov, and A. V. Subashiev, Sov. Phys. JETP 57, 1066 (1983).
Yu. S. Ponosov and S. V. Streltsov, Phys. Rev. B 86, 045138 (2012).
Yu. S. Ponosov and S. V. Streltsov, JETP Lett. 94, 447 (2013).
Yu. S. Ponosov, A. A. Makhnev, S. V. Streltsov, et al., JETP Lett. 102, 503 (2015).
K. Flachbart, S. Gabani, K. Gloos, et al., J. Low Temp. Phys. 140, 339 (2005).
B. T. Matthias, T. H. Geballe, K. Andres, et al., Science 159, 530 (1968).
R. Lortz, Y. Wang, S. Abeet, et al., Phys. Rev. B 72, 024547 (2005).
J. Teyssier, R. Lortz, A. Petrovic, et al., Phys. Rev. B 78, 134504 (2008).
H. Werheit, Yu. Paderno, V. Filippov, et al., J. Solid State Chem. 179, 2761 (2006).
H. Werheit, V. Filipov, K. Shirai, et al., J. Phys.: Condens. Matter 23, 065403 (2011).
N. E. Sluchanko, A. N. Azarevich, A. V. Bogach, et al., JETP 113, 468 (2011).
A. Czopnik, N. Shitsevalova, V. Pluzhnikov, et al., J. Phys.: Condens. Matter 17, 5971 (2005).
A. V. Rybina, K. S. Nemkovski, P. A. Alekseev, et al., Phys. Rev. B 82, 024302 (2010).
O. K. Andersen and O. Jepsen, Phys. Rev. Lett. 53, 2571 (1984).
U. von Barth and L. Hedin, J. Phys. C 5, 1629 (1971).
A. Dervisch and R. Loudon, J. Phys. C 9, L669 (1976).
M. Heinecke, K. Winzer, J. Noffke, et al., Z. Phys. B 98, 231 (1995).
B. Jager, S. Paluch, O. J. Zogal, et al., J. Phys.: Condens. Matter 18, 2525 (2006).
G. E. Grechnev, A. E. Baranovskiy, V. D. Fil, et al., Low Temp. Phys. 34, 921 (2008).
S. V. Shulga, O. V. Dolgov, and E. G. Maksimov, Physica C 178, 266 (1991).
P. B. Allen and R. C. Dynes, Phys. Rev. B 12, 905 (1975).
Author information
Authors and Affiliations
Corresponding author
Additional information
Original Russian Text © Yu.S. Ponosov, S.V. Streltsov, A.V. Levchenko, V.B. Filippov, 2016, published in Zhurnal Eksperimental’noi i Teoreticheskoi Fiziki, 2016, Vol. 150, No. 3, pp. 586–591.
Rights and permissions
About this article
Cite this article
Ponosov, Y.S., Streltsov, S.V., Levchenko, A.V. et al. Electronic Raman scattering and the renormalization of the electron spectrum in LuB12 . J. Exp. Theor. Phys. 123, 506–510 (2016). https://doi.org/10.1134/S1063776116090077
Received:
Published:
Issue Date:
DOI: https://doi.org/10.1134/S1063776116090077