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Thermal properties of holmium-implanted gold films for a neutrino mass experiment with cryogenic microcalorimeters
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10.1063/1.4816640
/content/aip/journal/rsi/84/8/10.1063/1.4816640
http://aip.metastore.ingenta.com/content/aip/journal/rsi/84/8/10.1063/1.4816640

Figures

Image of FIG. 1.
FIG. 1.

Actual bolometer used to measure sample Au-2 with the thin gold film heater, and bare Ge NTD thermometer on top (left). Schematic view (right) of a typical bolometer constructed for measuring the heat capacities of holmium and erbium implanted gold films.

Image of FIG. 2.
FIG. 2.

Sample thermometer resistance vs time (left) and temperature vs time (right) for sample Au-2 at a base temperature of 110 mK.

Image of FIG. 3.
FIG. 3.

Exponential fit of the relaxation plot to determine τ.

Image of FIG. 4.
FIG. 4.

Measured heat capacitances of all samples are plotted as a function of temperature. The combined heat capacitance of substrate, heater, and thermometer (black squares) starts dominating above 200 mK.

Image of FIG. 5.
FIG. 5.

Measured specific heat capacities of all samples in the temperature range 70 to 150 mK (left). Polynomial fits using only linear and cubical terms (right).

Image of FIG. 6.
FIG. 6.

Specific heat capacity of individual samples at 100 mK (extracted from polynomial fitting parameters). The red line represents the specific heat capacity of pure gold from the literature.

Tables

Generic image for table
Table I.

Properties of the samples used.

Generic image for table
Table II.

The values of fitting parameters obtained from polynomial fit of individual data sets. Specific heat of each sample at 0.1 K was calculated using the fitting parameters.

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/content/aip/journal/rsi/84/8/10.1063/1.4816640
2013-08-14
2014-04-23
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Thermal properties of holmium-implanted gold films for a neutrino mass experiment with cryogenic microcalorimeters
http://aip.metastore.ingenta.com/content/aip/journal/rsi/84/8/10.1063/1.4816640
10.1063/1.4816640
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