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- W2045131092 abstract "We report possible evidence of non-Fermi liquid (NFL) observed at room temperature from the quasi one-dimensional (1D) indium (In) nanowires self-assembled on Si(111)-7$times$7 surface. Using high-resolution electron-energy-loss spectroscopy, we have measured energy and width dispersions of a low energy intrasubband plasmon excitation in the In nanowires. We observe the energy-momentum dispersion $omega$(q) in the low q limit exactly as predicted by both NFL theory and the random-phase-approximation. The unusual non-analytic width dispersion $zeta(q) sim q^{alpha}$ measured with an exponent ${alpha}$=1.40$pm$0.24, however, is understood only by the NFL theory. Such an abnormal width dispersion of low energy excitations may probe the NFL feature of a non-ideal 1D interacting electron system despite the significantly suppressed spin-charge separation ($leq$40 meV)." @default.
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- W2045131092 date "2007-08-01" @default.
- W2045131092 modified "2023-09-25" @default.
- W2045131092 title "Possible evidence of non-Fermi liquid behaviour from Quasi-one-dimensional indium nanowires" @default.
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- W2045131092 doi "https://doi.org/10.1088/1367-2630/9/8/249" @default.
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