Super-heavy electron material as metallic refrigerant for adiabatic demagnetization cooling.

ABSTRACT: Low-temperature refrigeration is of crucial importance in fundamental research of condensed matter physics, because the investigations of fascinating quantum phenomena, such as superconductivity, superfluidity, and quantum criticality, often require refrigeration down to very low temperatures. Currently, cryogenic refrigerators with (3)He gas are widely used for cooling below 1 K. However, usage of the gas has been increasingly difficult because of the current worldwide shortage. Therefore, it is important to consider alternative methods of refrigeration. We show that a new type of refrigerant, the super-heavy electron metal YbCo2Zn20, can be used for adiabatic demagnetization refrigeration, which does not require (3)He gas. This method has a number of advantages, including much better met

SUBMITTER: Tokiwa Y 

PROVIDER: S-EPMC5017822 | biostudies-literature | 2016 Sep

REPOSITORIES: biostudies-literature