Influence of strong electron correlations on the spin susceptibility in High-Tc cuprates
Abstract
A new formula for the dynamic spin susceptibility has been analyzed with taking into account the strong electron correlations. The correlations sufficiently modify the Stoner-like factor and as a consequence change the phase diagram of the instability. It is remarkable to note that the instability area moves to the low doping. The possible approximates (lorentzian and gaussian) of the real part of the spin susceptibility have been considered. The behavior of the correlation length with doping and temperature in both cases is discussed.
Supporting agencies: I am acknowledge ISSEP "Graduate Students" program (Grant No. a97-1981) for the financial support.
About the Author
I. Eremin
Department of Theoretical Physics, Kazan State University
Russian Federation
Russian Federation
Kremlevskaya, 18, Kazan 420008
References
1. Anderson P. W., Science 235, 1196 (1987)
2. Pines D., Physica (Amsterdam) C 282-287, 236 (1997)
3. Plakida N. M., Hayn R., and Richards J. L., Phys. Rev., B51, 16599 (1995)
4. Eremin M. V., Solovjanov S., and Varlamov S., J. Phys. Chem. Solids, 56, 1713 (1995)
5. Zhang F. C. and Rice T. M., Phys. Rev., B37, 3759 (1987)
6. Eremin I., Physica (Amsterdam) B 234-236, 792 (1997)
7. Rosner H., Diploma Thesis, TU Dresden (1995)
8. Bobroff J. et. al., Phys. Rev. Lett., 79, 2117 (1997)
9. Eremin M. et. al., Proc. 10th Anniv. HTS Workshop on Physics, Materials and Applications (Edited by Batlogg B., Chu C. W., Chu W. K., Gubser D. U. and Muller K. A.), p. 517. World Scientific, Singapore, 1996
10. Eremin I., Solid State Commun., (1997) in press
11. Hubbard J. and Jain K. P., J. Phys. C (Proc. Phys. Soc.) Ser. 2, 1 (1968)
12. Janossy A., Brunel A., and Cooper J. R., Phys. Rev., B54, 10186 (1996)
13. Gofron K. et.al., J. Phys. Chem. Solids 54, 1193 (1994)
Review
For citations:
Eremin I. Influence of strong electron correlations on the spin susceptibility in High-Tc cuprates. Magnetic Resonance in Solids. 1997;1(2):1-10.
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