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TT: Tiefe Temperaturen

TT 15: Postersitzung II: Elektronische Eigenschaften (1-12), Josephson-Kontakte (13-27), Heavy Fermions (28-40), Theorie HTSL (41-48), M-I-Überg
änge, Korrelierte Systeme (49-79)

TT 15.41: Poster

Wednesday, March 24, 1999, 14:30–18:00, Foy

Collective Mode Contributions to Raman Scattering — •F. Venturini¹, U. Michelucci¹, T. P. Devereaux², and A. P. Kampf¹ — ¹Theoretische Physik III, Institut für Physik, Universität Augsburg, D-86135 Augsburg — ²Department of Physics, The George Washington University, 20052 Washington, D.C.

In this work we explore the two spin-flip contributions to the Raman response. In particular we examine colective modes used to explain the 41 meV peak observed in neutron scattering in high-T_c superconductors at T<T_c. The symmetry dependence of the modes will be discussed.