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Article overview
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On Thermometer Operation of Ultrasmall Tunnel Junctions | H.-O. Müller
; A. Hädicke
; W. Krech
; | Date: |
13 Oct 1994 | Journal: | phys.stat.sol. b 188(2), 667-77 (1995) | Subject: | cond-mat | Abstract: | The temperature dependence of the I-V characteristics of many single-electron tunneling devices enable thermometer operation of these systems. We investigate two normal conducting kinds of them, {sl (a)} a single junction in a high-impedance environment, and {sl (b)} a double junction. The characteristics of both devices show a crossover from Coulomb blockade at low temperatures to ohmic behavior at high temperatures. The related differential conductivity dip allows the determination of the junctions temperature. Both configurations {sl (a)} and {sl (b)} are expected to work at least within the range $0.5leeta E_{
m C}le 10$, where $E_{
m C}$ is the Coulomb energy of the system under investigation. We present an analytical solution for both low- and high-temperature case of {sl (a)} and {sl (b)} as well as numerical results and their fit, including the effect of co-tunneling in case of a double junction. | Source: | arXiv, cond-mat/9410044 | Services: | Forum | Review | PDF | Favorites |
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