Berlin 2015 – wissenschaftliches Programm

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TT: Fachverband Tiefe Temperaturen

TT 65: Low-Dimensional Systems: 1D – Theory

TT 65.12: Vortrag

Mittwoch, 18. März 2015, 18:15–18:30, H 0104

Exchange couplings in spin chains — •Kira Riedl, Harald O. Jeschke, and Roser Valenti — Institut für Theoretische Physik, Goethe-Universität Frankfurt, 60438 Frankfurt am Main, Germany

Within the framework of density functional theory, we investigate the variation of exchange couplings in SrCuO₂ and Sr₂CuO₃ spin chains^[1] upon doping^[2] with magnetic and non-magnetic impurities. In this talk we shall discuss the various cases and compare with experimental results.

This work is being performed in collaboration with C. Rüegg.

[1] N. Hlubek, X. Zotos, S. Singh, R. Saint-Martin, A. Revcolevschi,

B. Büchner, and C. Hess, J. Stat. Mech. 12, P03006 (2012).

[2] K. Karmakar, A. Singh, S. Singh, A. Pool, and C. Rüegg,

Cryst. Growth Des. 14, 1184 (2014).