Fine structure in the electronic density of states of Al-Ni-Co decagonal quasicrystal from ultrafast time-resolved optical reflectivity

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dc.creatorMertelj, T.
dc.creatorOslak, A.
dc.creatorDolinsek, J.
dc.creatorFisher, I. R.
dc.creatorKabanov, V. V.
dc.creatorMihailovic, D.
dc.date2008-09-04
dc.date2008-09-08
dc.date.accessioned2026-07-07T12:47:26Z
dc.date.available2026-07-07T12:47:26Z
dc.descriptionWe measured the temperature and fluence dependence of the time-resolved photoinduced optical reflectivity in a decagonal Al_{71.9}Ni_{11.1}Co_{17.0} quasicrystal. We find no evidence for the relaxation of a hot thermalized electron gas as observed in metals. Instead, a quick diffusion of the hot nonthermal carries ~40 nm into the bulk is detected enhanced by the presence of a broad ~1 eV pseudogap. From the relaxation dynamics we find an evidence for the presence of a fine structure in the electronic density of states around ~13 meV from the Fermi energy. The structure is related to a weak bottleneck for the carrier relaxation observed at low temperatures.
dc.descriptionThe sample composition was corrected
dc.identifierhttps://arxiv.org/abs/0809.0764
dc.identifierhttp://arxiv.org/abs/0809.0764
dc.identifierT. Mertelj et al., Phys. Rev. Lett. 102, 086405 (2009)
dc.identifierdoi:10.1103/PhysRevLett.102.086405
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/221720
dc.subjectOther Condensed Matter
dc.titleFine structure in the electronic density of states of Al-Ni-Co decagonal quasicrystal from ultrafast time-resolved optical reflectivity
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