Possible observation of coulomb blockade at room temperature

Shivashankar, G. V. ; Raychaudhuri, A. K. (1990) Possible observation of coulomb blockade at room temperature Pramana - Journal of Physics, 35 (5). L503-L507. ISSN 0304-4289

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Official URL: http://www.ias.ac.in/j_archive/pramana/35/5/503-50...

Related URL: http://dx.doi.org/10.1007/BF02846907


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 ⋍10−19 F and junction conductance < 1 μs. When the junction conductance is < 1 μs strong nonlinearity is observed in the (I-V) characteristics. We explain this nonlinearity as onset of coulomb blockade of tunneling electrons.

Item Type:Article
Source:Copyright of this article belongs to Indian Academy of Sciences.
Keywords:Tunneling; Ultrasmall Capacitance; Tunnel Junction; Scanning Tunneling Microscope; Coulomb Blockade
ID Code:62255
Deposited On:20 Sep 2011 09:34
Last Modified:18 May 2016 11:37

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