Experimental test of the correction terms for Coulomb blockade thermometry

Abstract

We have experimentally investigated the higher-order correction terms for Coulomb blockade thermometry using two-dimensional arrays of small tunnel junctions and compared our results to the theory for one-dimensional arrays. We find that the correction term for the conductance dip is two times smaller, whereas the correction term for the half-width has a slightly higher value than the theoretical prediction.

Primary Thermometry in the Intermediate Coulomb Blockade Regime

“…Since the single electron tunneling phenomena were described about 30 years ago [1], many devices based on small tunnel junctions have been demonstrated. An example of such a device is the Coulomb blockade thermometer (CBT) using one [2] or two dimensional arrays of tunnel junctions [3,4]. CBT based on electron tunneling enables one to relate the measured voltage to temperature with the help of Boltzmann constant k B , which could thus provide a means to revise the definition of kelvin [5].…”

Electrical transport properties of an isolated CdS microrope composed of twisted nanowires

“…As mentioned above, when the temperature is below 80 K, M 1 decreases sharply from 1.7 to 0.5 ~ 0.6, which deviates from the SCLC theory and may be ascribed to the Coulomb blockade effect [ 13 ]. One of the aims of studying Coulomb blockade effects is to investigate the possibility of using them in the construction of new integrated microelectronic devices such as single-electron memories [ 41 ], single-electron transistor circuits [ 42 ], high-precision Coulomb blockade thermometry [ 43 ], supersensitive memories, and data storage [ 44 ]. The Coulomb blockade effect was first predicted by Gorter et al in 1951 [ 45 ].…”

Electrical transport properties of an isolated CdS microrope composed of twisted nanowires

“…Further discussion: I-V curves below 80 K As mentioned above, when the temperature is below 80 K, M 1 decreases sharply from 1.7 to 0.5~0.6, which deviates from the SCLC theory and may be ascribed to the Coulomb blockade effect [13]. One of the aims of studying Coulomb blockade effects is to investigate the possibility of using them in the construction of new integrated microelectronic devices such as single-electron memories [41], single-electron transistor circuits [42], high-precision Coulomb blockade thermometry [43], supersensitive memories, and data storage [44]. The Coulomb blockade effect was first predicted by Gorter et al in 1951 [45].…”