Berlin 2018 – wissenschaftliches Programm
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TT: Fachverband Tiefe Temperaturen
TT 99: Poster Session: Transport
TT 99.19: Poster
Donnerstag, 15. März 2018, 15:00–19:00, Poster B
Ultrafast collective response and possible photo-induced phase transition in the antiferromagnetic insulator Ca2RuO4 — •Parmida Shabestari1,2, Hao Chu1,2, Minjae Kim1,2, Emily Huang1,2, Maximilian Krautloher1, Christopher Dietl1, Joel Bertinshaw1, Katrin Fürsich1, Bernhard Keimer1, and Stefan Kaiser1,2 — 1Max Planck Institute for Solid State Research, Stuttgart, Germany — 2University of Stuttgart, Germany
Among the diverse family of Ruthenates, the Antiferromagnetic Insulator Calcium Ruthenate, Ca2RuO4, has shown remarkable complexity in spin, orbital and phonons correlations. Raman Scattering [1] and Inelastic Neutron Scattering [2] experiments suggest strong spin-orbit coupling which manifests in the form of a complex Raman active Phonon, Magnon and collective Higgs mode responses. Utilizing ultrashort light pulses we are able to directly probe the interplay of these dynamics in time domain, disentangling the dynamics both in the ground state and possible light-induced metallic state, as a function of temperature and laser fluence.
S. Souliou et al., Phys. Rev. Lett. 119, 067201 (2017)
A. Jain et al., Nat. Phys. 13, 633 (2017).