Zero bias features in self-assembling tunnel junctions Academic Article

abstract

• A marked suppression of the conductance near zero bias voltage is a feature common to many electron tunneling systems and has been attributed to several different mechanisms including Coulomb blockade and non-equilibrium tunneling. We observe zero bias features (ZBFs) in self-assembling tunnel junctions in which the oxide layer of a traditional metal-insulator-metal junction is replaced by an atomically-thin gas film. We also find small conductance steps superimposed on the otherwise smoothly varying ZBF. Examination of the derivative of the junction conductance in this region reveals peaks, similar to those observed in point contact spectroscopy, that appear to be correlated with the phonon density of states in the metal electrodes. 2000 Elsevier Science B.V. All rights reserved.

authors

• Agnolet, Glenn

published proceedings

• PHYSICA B

author list (cited authors)

• Agnolet, G., Savitski, S. R., & Zimmerman, D. T.

citation count

• 3

complete list of authors

• Agnolet, G||Savitski, SR||Zimmerman, DT

publication date

• July 2000

publisher

• Elsevier  Publisher

keywords

• Electron Tunneling Spectroscopy
• Point Contact Spectroscopy
• Two-channel Kondo Scattering
• Zero Bias Features

Digital Object Identifier (DOI)

• 10.1016/S0921-4526(99)02861-6

start page

• 1840

end page

• 1841

volume

• 284

issue

• PART II

URL

• http://dx.doi.org/10.1016/s0921-4526(99)02861-6