Regensburg 2016 – wissenschaftliches Programm
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TT: Fachverband Tiefe Temperaturen
TT 78: Correlated Electrons: Poster Session
TT 78.17: Poster
Donnerstag, 10. März 2016, 15:00–18:30, Poster D
Structural and magnetic properties of Sr2Y1+xIr1−xO6 materials — •Gizem Aslan Cansever1, Maximilian Geyer1, Christian G.F. Blum1, Sebastian Gass1, Kaustuv Manna3, Franziska Hammerath1,2, Laura T. Corredor1, Andrey Maljuk1, A.U.B. Wolter1, Sabine Wurmehl1,2, and Bernd Büchner1,2 — 1IFW Dresden, Institute for Solid State Research, 01171 Dresden, Germany — 2Institute for Solid State Physics, TU Dresden, 01062 Dresden, Germany — 3Max-Planck-Institute for Chemical Physics of Solids, 01187 Dresden, Germany
Ir-based materials have attracted a lot of attention because of the competition between the spin-orbit coupling, Coulomb interaction and crystal field [1]. Sr2YIrO6 double perovskites with Ir+5 (5d4) ions are generally considered to have a nonmagnetic ground state (J=0). However, Sr2YIrO6 double perovskites have been reported to exhibit long-range magnetic order at low temperature and the distorted IrO6 octahedra were discussed to cause the magnetism in this compound [2]. In this study Sr2Y1+xIr1−xO6 materials were investigated in relation to structural and magnetic properties with varying Y and Ir concentrations. The samples were prepared by solid-state chemical reaction method. Magnetic susceptibility measurements were performed down to 0.4 K.
G. Khaliullin, PRL 111, 197201 (2013)
G. Cao et al., PRL 112, 056402 (2014)