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 SM ISO690:2012VERSTEEG, Rolf B., CHIOCCHETTA, Alessio, SEKIGUCHI, Fumiya, SAHASRABUDHE, Anuja, WAGNER, Julian, ALDEA, A. I.R., BUDZINAUSKAS, Kestutis, WANG, Zhe, TSURKAN, Vladimir, LOIDL, Alois, KHOMSKII, Daniel I., DIEHL, Sebastian, VAN LOOSDRECHT, Paul H.M.M.. Nonequilibrium quasistationary spin disordered state in α-RuCl3. In: Physical Review B, 2022, vol. 105, p. 0. ISSN 2469-9950. DOI: https://doi.org/10.1103/PhysRevB.105.224428 |
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  Physical Review B |
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| Volumul 105 / 2022 / ISSN 2469-9950 /ISSNe 2469-9969 | ||||||
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| DOI:https://doi.org/10.1103/PhysRevB.105.224428 | ||||||
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We photoexcite high-energy holon-doublon pairs as a way to alter the magnetic free energy landscape and resulting phase diagram of the frustrated honeycomb magnet α-RuCl3. The pair recombination through multimagnon emission is tracked through the time evolution of the magnetooptical response originating from α-RuCl3's competing zigzag spin-ordered ground state. A small holon-doublon density suffices to reach a spin-disordered state. The phase transition is described within a dynamical Ginzburg-Landau framework, corroborating the quasistationary nature of the transient phase. Our work suggests a new route to reach a nontrivial spin-disordered state in Kitaev-like magnets. |
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| Cuvinte-cheie Disordered state, Doublons, energy, Free energy landscape, Magnetic free energy, Magneto-optical, Non equilibrium, Pair recombination, Quasi-stationary, Time evolutions |
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