Thermoelectric signature of the excitation spectrum of a quantum dot

Dzurak, A.S.A.S.DzurakSmith, C.G.C.G.SmithBarnes, C.H.W.C.H.W.BarnesPepper, M.M.PepperMart{\\'iCHI-TE LIANG2018-09-102018-09-10199710980121http://www.scopus.com/inward/record.url?eid=2-s2.0-0000532512&partnerID=MN8TOARShttp://scholars.lib.ntu.edu.tw/handle/123456789/330972An electon-heating technique has been used to measure the diffusion thermopower of a quantum dot in the Coulomb blockade (CB) regime. When the gate voltage defining the dot is swept, the thermovoltage across the dot oscillates about zero with a period equal to that of the CB oscillations in electrical conductance and with a magnitude consistent with a Landauer formulation. In addition, a reproducible fine structure on top of the CB oscillations in the thermovoltage was observed that appears to result from the N-particle excitation spectrum of the dot. © 1997 The American Physical Society.Thermoelectric signature of the excitation spectrum of a quantum dotjournal article10.1103/PhysRevB.55.R101972-s2.0-0000532512WOS:A1997WW80300013