Abstract
Three-and two-dimensional models of p-and d-pairing are constructed for superconductors and superfluid quantum liquids using the functional integration formalism. In these models, the collective excitation spectra are calculated for superconductors with nontrivial pairing (such as high-temperature superconductors (HTSC) and heavy-fermion superconductors (HFSC)) for p-and d-pairing. Both three-and two-dimensional systems are considered. Some of recent ideas concerning the realization of the mixture of different states in HTSC are considered. In particular, the mixture of states \(d_{x^2 - y^2 } + id_{xy} \) is analyzed. The obtained results of calculations of collective excitation spectra in superconductors with nontrivial pairing may be used for determining the type of pairing and the order parameter in HTSC and HFSC and also for interpreting the experimental results on ultrasound and microwave absorption in these system.
Similar content being viewed by others
References
P. N. Brusov, Mechanisms of HTSC (Rostov State University Publ., Rostov, 1999), Vols. 1, 2.
Proceedings of International Conference on Low Temperature Physics LT-22, Helsinki, Finland, 1999; Physica B 284–288 (2000).
P. N. Brusov and V. N. Popov, Superfluidity and Collective Properties of Quantum Liquids (Nauka, Moscow, 1988).
P. N. Brusov and N. P. Brusova, Physica B (Amsterdam) 194–196, 1479 (1994).
P. N. Brusov and N. P. Brusova, J. Low Temp. Phys. 103, 251 (1996).
L. Tewordt, Phys. Rev. Lett. 83, 1007 (1999).
D. S. Hiroshima and H. Namaizawa, J. Low Temp. Phys. 73, 137 (1988).
K. Krishana, N. P. Ong, Q. Li, et al., Science 277, 83 (1997).
R. B. Laughlin, Phys. Rev. Lett. 80, 5188 (1998).
J. F. Annett, N. D. Goldenfeld, and A. J. Leggett, in Physical Properties of High Temperature Superconductors V, Ed. by D. M. Ginsberg (World Scientific, Singapore, 1996).
P. N. Brusov and P. P. Brusov, Physica B 281–282, 949 (2000).
A. V. Balatsky, P. Kumar, and J. R. Schrieffer, Phys. Rev. Lett. 84, 4445 (2000).
P. N. Brusov, N. P. Brusova, and P. P. Brusov, J. Low Temp. Phys. 108, 143 (1997).
A. Sachrajda, R. F. Harris-Lowe, and J. Harrison, Phys. Rev. Lett. 55, 1602 (1985).
M. Sigrist and T. M. Rice, Z. Phys. B 68, 9 (1987).
Author information
Authors and Affiliations
Additional information
__________
Translated from Zhurnal Éksperimental’no\(\overset{\lower0.5em\hbox{$\smash{\scriptscriptstyle\smile}$}}{l} \) i Teoretichesko\(\overset{\lower0.5em\hbox{$\smash{\scriptscriptstyle\smile}$}}{l} \) Fiziki, Vol. 119, No. 5, 2001, pp. 913–930.
Original Russian Text Copyright © 2001 by P. N. Brusov, P. P. Brusov.
Rights and permissions
About this article
Cite this article
Brusov, P.N., Brusov, P.P. Collective properties of superconductors with nontrivial pairing. J. Exp. Theor. Phys. 92, 795–810 (2001). https://doi.org/10.1134/1.1378171
Received:
Issue Date:
DOI: https://doi.org/10.1134/1.1378171