Speaker
Description
Accessing milli-Kelvin temperatures is a prerequisite for quantum-matter research and applications in quantum technologies. Adiabatic demagnetization refrigeration (ADR) is a simple and sustainable alternative to 3He/4He dilution refrigeration. Geometrically frustrated triangular and kagome rare earth oxides feature important advantages compared to the traditionally utilized hydrated paramagnetic salts for mK-ADR, including higher entropy density, chemical stability and easier fabrication of cooling stages. I will present our recent work on materials optimization and customized ADR platforms for the Quantum Design Physical Property Measurement System.
Work in collaboration with Marvin Klinger, Jorginho Villar Guerrero, Anna Klinger, Paul Bittner, Tim Treu, Christian Heil, Anton Jesche, Arjun Unnikrishnan, Alexander Tsirlin, Yoshi Tokiwa and Kan Zhao. Financial support by the German Federal Ministry of Economic Affairs and Climate Action through project 03EFBY0321 and by the German Research Foundation (DFG) through Project 514162746 (GE 1640/11-1) is acknowledged.
| email address | philipp.gegenwart@physik.uni-augsburg.de |
|---|---|
| Affiliation | EP6, Center for Electronic Correlations and Magnetism, University of Augsburg |
