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Updated: Jul 11, 2026

Comparison of Two Different Synthesis Methods of Single Crystals of Superconducting Uranium Ditelluride
Published on: July 8, 2021
Exotic superconducting properties in the electron-hole-compensated heavy-fermion "Semimetal" URu2Si2
Y Kasahara1, T Iwasawa, H Shishido
1Department of Physics, Kyoto University, Kyoto 606-8502, Japan.
Abstract:
We show that the charge and thermal transport measurements on ultraclean crystals of URu2Si2 reveal a number of unprecedented superconducting properties. The uniqueness is best highlighted by the peculiar field dependence of thermal conductivity including the first-order transition at Hc2 with a reduction of entropy flow. This is a consequence of multiband superconductivity with compensated electronic structure in the hidden order state of this system. We provide strong evidence for a new type of unconventional superconductivity with two distinct gaps having different nodal topology.
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