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- W4220871878 abstract "We investigate magnetic excitations and spin transport properties of a frustrated spin chain with ferromagnetic nearest-neighbor and antiferromagnetic next-nearest-neighbor exchange couplings in a magnetic field by density-matrix renormalization group methods. In the field-induced quadrupole and octupole regimes, the low-energy excitation is governed by two- and three-magnon bound states, respectively, so that bound magnon clusters would contribute to the spin transport. We show that spin current correlations decrease when the system goes from the quadrupole regime into the octupole regime. This indicates that the spin transport is suppressed in the octupole regime, although bound three-magnon clusters carry a larger amount of angular momentum than bound two-magnon clusters." @default.
- W4220871878 created "2022-04-03" @default.
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- W4220871878 date "2022-03-01" @default.
- W4220871878 modified "2023-10-18" @default.
- W4220871878 title "Excitation and transport of bound magnon clusters in frustrated ferromagnetic chain" @default.
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- W4220871878 doi "https://doi.org/10.1088/1742-6596/2207/1/012045" @default.
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