Emergence of superconductivity in the canonical heavy-electron metal YbRh2Si2

Autor: Cornelius Krellner, Alexander Steppke, Rong Yu, Erwin Schuberth, M. Tippmann, Christoph Geibel, Frank Steglich, Stefan Lausberg, Qimiao Si, Manuel Brando, Lucia Steinke
Jazyk: angličtina
Rok vydání: 2017
Předmět:
Popis: We report magnetic and calorimetric measurements down to T = 1 mK on the canonical heavy-electron metal YbRh2Si2. The data reveal the development of nuclear antiferromagnetic order slightly above 2 mK. The latter weakens the primary electronic antiferromagnetism, thereby paving the way for heavy-electron superconductivity below Tc = 2 mK. Our results demonstrate that superconductivity driven by quantum criticality is a general phenomenon.
39 pages including Supplementary Materials. Version before copy-edited by the journal
Databáze: OpenAIRE