Journal ArticleDOI
Measurements of thermal transport in low stress silicon nitride films
TLDR
In this paper, the authors measured the thermal conductance of 1 μm thick low stress silicon nitride membranes over the temperature range, 0.06 4 K, indicating that the thermal transport is determined by bulk scattering.Abstract:
We have measured the thermal conductance, G, of ≈1 μm thick low stress silicon nitride membranes over the temperature range, 0.06 4 K, G is independent of surface condition indicating that the thermal transport is determined by bulk scattering. For T<4 K, scattering from membrane surfaces becomes significant. Membranes which have submicron sized Ag particles glued to the surface or are micromachined into narrow strips have a G that is reduced by a factor as large as 5 compared with that of clean, solid membranes with the same ratio of cross section to length.read more
Citations
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Thermal conduction in classical low-dimensional lattices
TL;DR: In this paper, the authors consider stationary energy transport in crystals with reference to simple mathematical models consisting of coupled oscillators on a lattice, and the role of lattice dimensionality on the breakdown of the Fourier's law is discussed.
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Opportunities for mesoscopics in thermometry and refrigeration: Physics and applications
TL;DR: In this paper, a review of the thermal properties of mesoscopic structures is presented based on the concept of electron energy distribution, and, in particular, on controlling and probing it, and an immediate application of solidstate refrigeration and thermometry is in ultrasensitive radiation detection, which is discussed in depth.
Journal ArticleDOI
Measurement of the quantum of thermal conductance
TL;DR: The observation of a quantized limiting value for the thermal conductance, Gth, in suspended insulating nanostructures at very low temperatures is reported, consistent with predictions for phonon transport in a ballistic, one-dimensional channel.
Journal ArticleDOI
Engineering thermal conductance using a two-dimensional phononic crystal
TL;DR: In this paper, coherent band structure effects can also be used to control phonon transport via the use of periodically nanostructured phononic crystals, which is commonly achieved by introducing scattering centers.
Journal Article
Engineering thermal conductance using a two-dimensional phononic crystal
TL;DR: In this article, the authors used coherent band structure effects to control phonon thermal conductance with the help of periodically nanostructured phononic crystals, which not only leads to negligible bulk phonon scattering but also increases the wavelength of the dominant thermal phonons by more than two orders of magnitude compared to room temperature.
References
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Journal ArticleDOI
Bolometers for infrared and millimeter waves
TL;DR: In this paper, a review of bolometric detectors for infrared and millimeter-wave measurements is presented, where the authors provide the background required by workers who wish to choose the appropriate bolometer technology for a given measurement or to evaluate a novel technology.
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The Transport of Heat Between Dissimilar Solids at Low Temperatures
TL;DR: In this article, it was shown that for a perfectly joined interface, the heat flow is proportional to the difference of the fourth powers of the temperature on each side of the interface, and that deviations from this temperature dependence are to be expected for rough surfaces and for surfaces pressed into contact with one another.
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Hot-electron effects in metals.
TL;DR: The flux noise in dc SQUIDs at low temperatures is measured, and it is found that the white noise was limited bymore » heating of the electrons in the resistive shunts of the Josephson junctions, which was able to reduce substantially by attaching cooling fins to the shunts.
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Electronic Microrefrigerator Based on a Normal-Insulator-Superconductor Tunnel Junction
TL;DR: In this article, the authors present measurements on a novel electronic microrefrigerator that can cool conduction electrons significantly below the lattice temperature using a normal insulator-superconductor tunnel junction.