Professor Giniyat Khaliullin's Bragg Speaks abstract
Bragg Speak Seminar
OPAL theatre, B83
11:00 am Tuesday 9 March 2010
Electronic reconstruction at the interface between correlated oxides
Professor Giniyat Khaliullin
Max Planck Institute for Solid State Research, Stuttgart, Germany
Recently, oxide heterostructures and superlattices have emerged as a leading
research topic in physics of strongly correlated electron systems. I will discuss
some basic ideas in this field including our recent theoretical and experimental
work [1,2,3,4] which shows a major reconstruction of spin, orbital, and charge states
at the interface between correlated oxides. The orbital degrees of freedom, which are
highly sensitive to the chemical and lattice environment at interfaces, will be
emphasized as a key factor in driving novel electronic phases in oxide heterostructures.
[1] J. Chakhalian et al., Science 318, 1114 (2007); Nature Phys. 2, 244 (2006).
[2] J. Chaloupka, G. Khaliullin, Phys. Rev. Lett. 100, 016404 (2008).
[3] G. Jackeli, G. Khaliullin, Phys. Rev. Lett. 101, 216804 (2008).
[4] P. Hansmann et al., Phys. Rev. Lett. 103, 016401 (2009).