Contact: Jade Boyd
Caption: Researcher Heike Pfau attaches an experimental setup at the base of a cooling unit at the Max Planck Institute for Chemical Physics of Solids in Dresden, Germany. The experiment allowed Pfau and colleagues to measure thermal conductivity in a sample of ytterbium dirhodium disilicide -- one of the most-studied varieties of the exotic "heavy fermion metals."
Credit: Ulrike Stockert/Max Planck Institute, Dresden
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