Spin fluctuations in normal state CeCu2Si2 on approaching the quantum critical point

Julia Arndt1, Oliver Stockert, Karin Schmalzl

  • 1Max-Planck-Institut für Chemische Physik fester Stoffe, Dresden, Germany. Julia.Arndt@ilkdresden.de

Summary

Researchers observed critical slowing-down in heavy-fermion superconductor CeCu2Si2 approaching a quantum critical point (QCP). This finding suggests overdamped spin fluctuations mediate Cooper pair coupling, offering new insights into superconductivity mechanisms.

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