学科分类
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4 个结果
  • 简介:WestudyspectroscopicsignaturesofamonochromaticbosonmodeinteractingwithaT-shapedoublequantumdotcoupledbetweenthemetallicandsuperconductingleads.Focusingonaweakinterdotcoupling,wefindthattheproximityeffecttogetherwiththebosonicmodeareresponsiblefortheseriesofFano-typeresonancesappearingsimultaneouslyatnegativeandpositiveenergies.WeinvestigatetheseinterferometricfeaturesanddiscusstheirinfluenceonthesubgapAndreevconductancetakingintoaccountthecorrelationeffectsdrivenbytheCoulombrepulsion.

  • 标签: 玻色子 共振 模式法 电导 诱导 光谱特征
  • 简介:ThetunnelingspectrumofanelectronandaholeinasuperlattieeofNSjunctionsiscomputedusingtheBTKapproachandthetransfermatrixmethod.Itshowssharpresonancesatsomeenergiesabovethesuperconductinggap.Thesharpertheresonanceisthemorelayersthesuperlatticehas.Wefindforthefirsttimeamechanismtobalancetheincidentandoutgoingcurrentsonthesuperlatticebyaveragingoverthephasebetweentheincidentelectronandtheincidenthole.Thismechanismismorenaturalandphysicalthanthoseinliteratures.

  • 标签: ANDREEV reflection METAL SUPERCONDUCTOR JUNCTION BTK