# Possible observation of coulomb blockade at room temperature

Shivashankar, GV and Raychaudhuri, AK (1990) Possible observation of coulomb blockade at room temperature. In: Pramana - Journal of Physics, 35 (5). pp. 503-507.

## Abstract

We have studied the (I-V) characteristics of the tunnel junction formed between the tip and the substrate in an STM at room temperature. We find that in such an arrangement it may be possible to get a junction capacitance $\simeq 10^{-19}$ F and junction conductance < 1 $\mu$s. When the junction conductance is < 1 $\mu$s strong nonlinearity is observed in the (I-V) characteristics. We explain this nonlinearity as onset of coulomb blockade of tunneling electrons.

Item Type: Journal Article Pramana - Journal of Physics Indian Academy of Sciences Copyright of this article belongs to Indian Academy of Sciences. Tunneling;ultrasmall capacitance;tunnel junction;scanning tunneling microscope;coulomb blockade Division of Physical & Mathematical Sciences > Physics 19 Nov 2007 19 Sep 2010 04:41 http://eprints.iisc.ac.in/id/eprint/12513