Characterization Studies of Sputter Deposited Cermet Cryogenic Heaters

A New Type of Carbon Resistance Thermometer with Excellent Thermal Contact at Millikelvin Temperatures

“…We find that above 80mK the thermal contact of our thermometer is comparable to that of RuO 23 , Speer 24 , and Ge 23 thermometers and it is superior when compared to Cernox 23 and another RuO 8 . Below 30mK, however, our thermometer has the best thermal contact.…”

“…At 6mK R th is 1.5x10 9 K/W for our thermometer as compared to 3.3x10 10 K/W 3 and 4.0x10 10 K/W 4 for Speer thermometers. Hence the thermal contact at 6mK of our thermometer Th-1 is about a factor of 5 better than that of Speer thermometers 3,4 and it is at least a factor of 200 better than the extrapolated value for RuO 8,23 . We conclude that at the lowest temperatures our thermometer has the best thermal contact to its environment among all resistance thermometers.…”