【摘 要】
：
The amazing properties of strongly-correlated oxides stem from the interplay of between many-body effects, charge, spin and orbital degrees of freedom and latti
【机 构】
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InstituteforAdvancedSimulationForschungszentrumJuelich,Germany
【出 处】
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1st International Conference on Computational Design and Sim
论文部分内容阅读
The amazing properties of strongly-correlated oxides stem from the interplay of between many-body effects, charge, spin and orbital degrees of freedom and lattice distortions.It is typically difficult, however, to disentangle these effects and identify the actual mechanism beyond a specific phenomenon.In this talk, using a combination of ab-initio and many-body techniques, I will show how these effects can be disentangled in paradigmatic cases: Orbital-order and orbital-ordered melting phenonema in manganites and other correlated oxides, and spin-state transitions in rare-earth cobaltates.I will show that, in all considered systems, many-body super-exchange is not the driving mechanism behind orbital-order and orbital-order melting phenomena, but it plays instead a crucial role for spin-state transition in cobaltates.
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