Coulomb Staircase

Each step corresponds to the addition of a single electron to the metal particle.

Coulomb staircase. There are two criteria which need to be fulfilled for the staircase to appear. When the device is small enough electrons inside the device will create a strong coulomb repulsion preventing other electrons to flow. The clear room temperature coulomb staircase was observed in an asymmetric nanostructure of the. For room temperature operation 9 10 the junction must be very small to ensure that the coulomb energy for one electron.

Realization of these junctions. At room temperature when the tip was positioned over a cluster bonded to the xyl sam the current voltage data showed coulomb staircase behavior. Tunnel junction with a very small capacitance and a resistance. Introduction single electron effect in mesoscopics world dimension less than 30nm main component of single electronics.

Coulomb staircase in fused semiconducting inp nanowires under light illumination hidenori yamada a toshishige yamada b c andrew j. Lohn c d and nobuhiko p. A theoretical curve red broken line is plotted together with the experimental result. Thus the device will no longer follow ohm s law and the current voltage relation of the coulomb blockade looks like a staircase.

A coulomb staircase is a staircase like current voltage characteristic resulting from coulomb blockade effects 1 references heinzel thomas 2003. The effect of quantized current is called coulomb staircase and the energy barrier preventing insertion of electrons is called coulomb blockade. 1 stability against thermal fluctuations. These data are in good agreement with semiclassical predictions for correlated single electron tunneling and permit estimation of the electrical resistance of a single xyl molecule 18 12.

Mesoscopic electronics in solid state nanostructures illustrated ed. A clear coulomb blockade and coulomb staircase were observed in the sample at room temperature. Coulomb blockade and coulomb staircase zhang jun 01 06 2004. This coulomb blockade theoretical curve was derived from an orthodox model 1 9 24.

Kobayashi c d adepartment of electrical engineer ing and computer sciences univer sity of california berkeley berkeley california 94720 usa bcenter for nanostructures school of engineering santa clara univ ersity santa clara. From current voltage i d v d characteristics we obtained clear coulomb blockade phenomena together with a coulomb staircase due to a sn por protected gold np as a coulomb island. Coulomb blockade can be observed by making a device very small like a quantum dot.