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arXiv · 0708.2878

Noise thermometry and electron thermometry of a sample-on-cantilever system below 1 Kelvin

A. C. Bleszynski Jayich·W. E. Shanks·J. G. E. Harris
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Abstract

We have used two types of thermometry to study thermal fluctuations in a microcantilever-based system below 1 K. We measured the temperature of a cantilever's macroscopic degree-of-freedom (via the Brownian motion of its lowest flexural mode) and its microscopic degrees-of-freedom (via the electron temperature of a metal sample mounted on the cantilever). We also measured both temperatures' response to a localized heat source. We find it possible to maintain thermal equilibrium between these two temperatures and a refrigerator down to at least 300 mK. These results are promising for ongoing experiments to probe quantum effects using micromechanical devices.

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A. C. Bleszynski Jayich, W. E. Shanks, J. G. E. Harris. 2007-08-21. Noise thermometry and electron thermometry of a sample-on-cantilever system below 1 Kelvin. https://doi.org/10.1063/1.2821828

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