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In 5d transition metal compounds such as iridium oxides, large spin-orbit
coupling entangles the spin and orbital subspaces and may lead to unusual
interactions and ground states. In this talk, after some basic introduction
to the layered iridates, I will discuss the exchange mechanisms, magnetic
order and excitations in these compounds, with a particular focus on those
with perovskite structure similar to high-Tc cuprates.
References: [1] G. Jackeli and G. Khaliullin, Phys. Rev. Lett. 102, 017205 (2009). [2] Jungho Kim et al., Phys. Rev. Lett. 108, 177003 (2012). [3] J.W. Kim et al., Phys. Rev. Lett. 109, 037204 (2012). [4] Jungho Kim et al., Phys. Rev. Lett. 109, 157402 (2012). [5] J. Chaloupka, G. Jackeli, and G. Khaliullin, Phys. Rev. Lett. 105, 027204 (2010); Phys. Rev. Lett., in press (2013). [6] G. Khaliullin, Prog. Theor. Phys. Suppl. 160, 155 (2005). |
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