Dresden 2014 – wissenschaftliches Programm
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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)