ISSN:
1089-7550
Source:
AIP Digital Archive
Topics:
Physics
Notes:
Cermet thin-film resistors consisting of roughly 50-A(ring) Pt or Mo particles in Al2O3 at compositions just below the percolation transition provide a number of useful features for thermometry. These include: continuous sensitivity from at least 50 mK to 300 K, adjustable temperature dependence, low heat capacity, small size, excellent stability, and a saturable magnetoresistance. The fabrication, microstructure, and temperature dependence of the resistance and magnetoresistance of these materials are described. We find poor agreement with existing theories of conduction in granular materials.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1063/1.341192
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