Continuous melting and thermal-history-dependent freezing in the confined Na-K eutectic alloy
Materials Science
2015-06-15 v1
Abstract
23Na NMR studies of the Na-K eutectic alloy embedded into porous glass with 7 nm pores showed that melting of Na2K 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.
Keywords
Cite
@article{arxiv.1302.3871,
title = {Continuous melting and thermal-history-dependent freezing in the confined Na-K eutectic alloy},
author = {E. V. Charnaya and M. K. Lee and Cheng Tien and L. J. Chang and Z. -J. Wu and Yu. A. Kumzerov and A. S. Bugaev},
journal= {arXiv preprint arXiv:1302.3871},
year = {2015}
}
Comments
5 pages, 5 figures, preprint of manuscript submitted to Phys. Rev. B