Thermal conductance and electron-phonon coupling in mechanically suspended nanostructures
Yung, C. S. ; Schmidt, D. R. ; Cleland, A. N.
Woodbury, NY : American Institute of Physics (AIP)
Published 2002
Woodbury, NY : American Institute of Physics (AIP)
Published 2002
| ISSN: |
1077-3118
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| Source: |
AIP Digital Archive
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| Topics: |
Physics
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| Notes: |
We have fabricated and characterized the principal thermal properties of a mechanically suspended nanostructure, consisting of a micron-scale suspended GaAs island, upon which we have defined superconductor-insulator-normal metal tunnel junctions. The tunnel junctions allow for sensitive thermometry and heating of the electrons in a thermally isolated normal metal element, permitting the determination of the low-temperature thermal conductance of the legs that support the GaAs island, as well as the low-temperature electron-phonon coupling. This device forms the basis of a nanoscale bolometric detector, whose optical performance can be estimated from these measurements. © 2002 American Institute of Physics.
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| Type of Medium: |
Electronic Resource
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| URL: |