556 citations · 1.7k across the 26 of their papers we have counts for
12 papers · 1 filter
Unveiling the underlying interactions in Ta2NiSe5 from photo-induced lifetime change
Denis Golez, Sydney K. Y. Dufresne, Min-Jae Kim +14
We present a generic procedure for quantifying the interplay of electronic and lattice degrees of freedom in photo-doped insulators through a comparative analysis of theoretical ma…
Phononic soft mode and strong electronic background behavior across the structural phase transition in the excitonic insulator TaNiSe (with Erratum)
Min-Jae Kim, Armin Schulz, Tomohiro Takayama +3
TaNiSe became one of the most investigated candidate materials for hosting an excitonic insulator ground state. Many studies describe the corresponding phase transition as…
Photo-excited Dynamics in the Excitonic Insulator Ta2NiSe5
Daniel Werdehausen, Tomohiro Takayama, Gelon Albrecht +3
The excitonic insulator is an intriguing correlated electron phase formed of condensed excitons. A promising candidate is the small band gap semiconductor Ta2NiSe5. Here we investi…
Classification and characterization of nonequilibrium Higgs modes in unconventional superconductors
L. Schwarz, B. Fauseweh, N. Tsuji +8
Recent findings of new Higgs modes in unconventional superconductors require a classification and characterization of the modes allowed by nontrivial gap symmetry. Here we develop…
Coherent Order Parameter Oscillations in the Ground State of the Excitonic Insulator Ta2NiSe5
Daniel Werdehausen, Tomohiro Takayama, Marc Höppner +6
The excitonic insulator is an intriguing electronic phase of quasi-condensed excitons. A prominent candidate is the small bandgap semiconductor Ta2NiSe5, in which excitons are beli…
Pressure dependent relaxation in the photo-excited Mott insulator ETF2TCNQ: Influence of hopping and correlations on quasiparticle recombination rates
M. Mitrano, G. Cotugno, S. R. Clark +12
Femtosecond relaxation of photo-excited quasiparticles in the one dimensional Mott insulator ET-F2TCNQ are measured as a function of external pressure, which is used to tune the el…