Onset of Cooperative Dynamics in an Equilibrium Glass-Forming Metallic Liquid

Abhishek Jaiswal, Stephanie O'Keeffe, Rebecca Mills, Andrey Podlesynak, Georg Ehlers, Wojciech Dmowski, Konstantin Lokshin, Joseph Stevick, Takeshi Egami, Yang Zhang

Research output: Contribution to journalArticlepeer-review


Onset of cooperative dynamics has been observed in many molecular liquids, colloids, and granular materials in the metastable regime on approaching their respective glass or jamming transition points, and is considered to play a significant role in the emergence of the slow dynamics. However, the nature of such dynamical cooperativity remains elusive in multicomponent metallic liquids characterized by complex many-body interactions and high mixing entropy. Herein, we report evidence of onset of cooperative dynamics in an equilibrium glass-forming metallic liquid (LM601: Zr51Cu36Ni4Al9). This is revealed by deviation of the mean effective diffusion coefficient from its high-temperature Arrhenius behavior below TA 1300 K, i.e., a crossover from uncorrelated dynamics above TA to landscape-influenced correlated dynamics below TA. Furthermore, the onset/crossover temperature TA in such a multicomponent bulk metallic glass-forming liquid is observed at approximately twice of its calorimetric glass transition temperature (Tg 697 K) and in its stable liquid phase, unlike many molecular liquids.

Original languageEnglish (US)
Pages (from-to)1142-1148
Number of pages7
JournalJournal of Physical Chemistry B
Issue number6
StatePublished - Feb 18 2016

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Surfaces, Coatings and Films
  • Materials Chemistry


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