Andreev Edge State on Semi-Infinite Triangular Lattice: Detecting the Pairing Symmetry in Na_0.35CoO_2.yH_2O

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dc.creatorPereg-Barnea, T.
dc.creatorLin, Hsiu-Hau
dc.date2004-07-08
dc.date.accessioned2026-07-07T02:59:05Z
dc.date.available2026-07-07T02:59:05Z
dc.descriptionWe study the Andreev edge state on the semi-infinite triangular lattice with different pairing symmetries and boundary topologies. We find a rich phase diagram of zero energy Andreev edge states that is a unique fingerprint of each of the possible pairing symmetries. We propose to pin down the pairing symmetry in recently discovered Na_xCoO_2 material by the Fourier-transformed scanning tunneling spectroscopy for the edge state. A surprisingly rich phase diagram is found and explained by a general gauge argument and mapping to 1D tight-binding model. Extensions of this work are discussed at the end.
dc.description4 pages, 1 table, 4 figures
dc.identifierhttps://arxiv.org/abs/cond-mat/0407187
dc.identifierhttp://arxiv.org/abs/cond-mat/0407187
dc.identifierEuro Physics Letters 69, 791 (2005)
dc.identifierdoi:10.1209/epl/i2004-10424-x
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/24375
dc.subjectSuperconductivity
dc.subjectStrongly Correlated Electrons
dc.titleAndreev Edge State on Semi-Infinite Triangular Lattice: Detecting the Pairing Symmetry in Na_0.35CoO_2.yH_2O
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