Symposia description

Orbital control for novel functions in multiband systems

Takashi Mizokawa (Department of Applied Physics, Waseda University) mizokawa@waseda.jp
Naurang Saini (Department of Physics, University of Roma La Sapienza) naurang.saini@roma1.infn.it

Transition-metal species in various molecules and solids show rich and useful functionalities that are directly or indirectly related to the orbital degeneracy of the transition-metal d- sub-shell. Such functional multi-orbital systems include the Mn-O clusters in the photosynthesis system II, the Fe pnictide/chalcogenides with the exotic magnetism and superconductivity, and the Co oxides in the Li-ion battery electrodes. Various functionalities of the multi-orbital systems can be controlled through the modification of orbital states under high pressure, optical excitation, and other external stimulation. This symposium focuses on emerging orbital physics and recent theoretical and experimental developments for multiband systems including (i) orbitally-selective and orbitally-induced phase transition, (ii) pressure and optical control of spin-charge-orbital order/disorder, (iii) spin-orbit coupling and Dzyaloshinskii-Moriya interaction in multiband systems. The program consists of invited and contributory talks and posters

Submitted abstracts:

Talks:

Hyowon Park
Energetics of spin-state transitions in LaCoO3: DFT+DMFT and DFT+U study

Alex Taekyung Lee and Chris A. Marianetti
Orbital ordering in Rhenium based double perovskites: a first-principles investigation.

Changyoung Kim
Towards controlling the octahedron distortion of transition metal oxides.

Myung-Joon Han
Magnetism, spin-lattice-orbital coupling and exchange-correlation energy in oxide heterostructures: Nickelate, titanate, and ruthenate

Cheng-Chien Chen
Topological Order and Symmetry-Protected Topological Phase on Frustrated Lattices

N.L. Saini
Different electronic phases in iron-based superconductors

Posters: