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TT: Fachverband Tiefe Temperaturen

TT 47: Correlated Electrons: Spin Systems and Itinerant Magnets - Frustrated Magnets III

TT 47.7: Vortrag

Dienstag, 1. April 2014, 15:30–15:45, HSZ 03

Investigation of the strongly correlated one-dimensional magnetic behavior of NiTa₂O₆ — •Joseph M Law¹ and Reinhard K Kremer² — ¹Dresden High Magnetic Field Laboratory (HLD), Helmholtz-Zentrum Dresden-Rossendorf, D-01314 Dresden, Germany — ²Max-Planck-Institut fuer Festkoerperforschung, Heisenbergstr. 1, D-70569 Stuttgart, Germany

NiTa₂O₆ has been previously shown to be a 2D system.[1] Herein, we re-investigated magnetic properties of NiTa₂O₆ by magnetic susceptibility, specific heat, electron paramagnetic resonance, neutron powder diffraction and pulse field magnetization measurements. In contrast to the previous findings we found NiTa₂O₆ to be a quasi-1D Heisenberg S = 1 spin chain with a nearest neighbor spin exchange interaction of 18.92(2) K with a g-factor of 2.14(1).
E. G. Santos, J. B. M. da Cunha, O. Isnard, C. Lacroix, and M. A. Gusmao, J. Phys.: Condens. Matter 24, 496004 (2012)