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Condensed Matter Seminar: "X-ray vision of spins, charges and orbitals for understanding emergent electronic states in complex oxides"

Event Type
Physics - Condensed Matter
190 ESB
Feb 1, 2019   1:00 pm  
Mark Dean, Brookhaven National Laboratory
Originating Calendar
Physics - Condensed Matter Seminar

The charge, lattice, orbital and spin degrees of freedom play a crucial role in determining the remarkable properties of transition metal oxide materials, but probing these degrees of freedom is often challenging. In this talk, I will describe how resonant inelastic x-ray scattering (RIXS) opens up important new possibilities for measuring these degrees of freedom even in extreme cases such as atomically thin heterostructures and ultra-fast transient states. This includes observing precursor charge correlations in cuprates [1], Weyl phonons in FeSi [2], determining how orbitals are modified within LaNiO3-based heterostructures [3] and characterizing the spin behavior within the transient state of photo-doped Sr2IrO4 [4].



  1. Miao et al., Proc. Natl. Acad. Sci. U.S.A 114, 12430–12435 (2017); X. M. Chen et al., Phys. Rev. Lett. 117, 167001 (2016); H. Miao et al., Phys. Rev. X 8, 011008 (2018)
  2. Miao et al. Phys. Rev. Lett. 121, 035302 (2018)
  3. Fabbris et al., Phys. Rev. Lett. 117, 147401 (2016); G. Fabbris et al., Phys. Rev. Lett. 118, 156402 (2017)
  4. P. M. Dean et al., Nature Materials 15, 601-605 (2016); Y. Cao et al., arXiv: 1809.06288
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