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Showing 2018 · cond-mat.str-elShow all
3 papers · 2 filters
cond-mat.str-el2018★ 46 cited
Collective Modes in Excitonic Magnets: Dynamical Mean-Field Study
D. Geffroy, J. Kaufmann, A. Hariki +3
We present a dynamical mean-field study of dynamical susceptibilities in two-band Hubbard model. Varying the model parameters we analyze the two-particle excitations in the normal…
cond-mat.str-el2018★ 16 cited
Direct observation of double exchange in ferromagnetic LaSrCoO by broadband ellipsometry
P. Friš, D. Munzar, O. Caha +1
We present results of our broadband ellipsometry measurements of the optical response of ferromagnetic LaSrCoO. Our data show that the ferromagnetic transition…
cond-mat.str-el2018★ 11 cited
Excitonic magnet in external field: complex order parameter and spin currents
D. Geffroy, A. Hariki, J. Kunes
We investigate spin-triplet exciton condensation in the two-orbital Hubbard model close to half filling by means of dynamical mean-field theory. Employing an impurity solver that h…