Accurate Coulomb blockade thermometry up to 60 kelvin

M Meschke; A Kemppinen; J P Pekola

doi:10.1098/rsta.2015.0052

Accurate Coulomb blockade thermometry up to 60 kelvin

Philos Trans A Math Phys Eng Sci. 2016 Mar 28;374(2064):20150052. doi: 10.1098/rsta.2015.0052.

Authors

M Meschke¹, A Kemppinen², J P Pekola³

Affiliations

¹ Low Temperature Laboratory, Department of Applied Physics, Aalto University School of Science, PO Box 13500, Aalto 00076, Finland matthias.meschke@aalto.fi.
² VTT Technical Research Centre of Finland Ltd, Centre for Metrology MIKES, PO Box 1000, VTT 02044, Finland.
³ Low Temperature Laboratory, Department of Applied Physics, Aalto University School of Science, PO Box 13500, Aalto 00076, Finland.

PMID: 26903107
DOI: 10.1098/rsta.2015.0052

Abstract

We demonstrate experimentally a precise realization of Coulomb blockade thermometry working at temperatures up to 60 K. Advances in nano-fabrication methods using electron beam lithography allow us to fabricate uniform arrays of sufficiently small tunnel junctions to guarantee an overall temperature reading precision of about 1%.

Keywords: low temperature; nano-fabrication; primary thermometry.

Publication types

Research Support, Non-U.S. Gov't