Continuous melting and thermal-history-dependent freezing in the confined Na-K eutectic alloy

E. V. Charnaya, M. K. Lee, Cheng Tien, L. J. Chang, Z. J. Wu, Yu A. Kumzerov, A. S. Bugaev

Research output: Contribution to journalArticlepeer-review

6 Citations (Scopus)

Abstract

23Na NMR studies of the Na-K eutectic alloy embedded into porous glass with 7-nm pores showed that melting of Na 2 K confined nanoparticles is a continuous process with smooth changes in the Knight shift of a narrow resonance line and nuclear spin relaxation between those in the crystalline and liquid states. The intermediate state, which occurs upon melting is stable and more favorable than the liquid state. The inverse freezing transformation can be sharp as at a first-order transition or continuous depending on the initial temperature of cooling. The results suggest revision of theoretical predictions for the melting and freezing transitions in confined geometry.

Original languageEnglish
Article number155401
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume87
Issue number15
DOIs
Publication statusPublished - 2013 Apr 3

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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