Finite-size effects in thermodynamics: Negative compressibility and global instability in two-phase systems

I. Todoshchenko*

*Corresponding author for this work

Research output: Contribution to journalArticleScientificpeer-review

59 Downloads (Pure)

Abstract

We have measured the equilibrium melting pressure of helium-4 as a function of the crystal size. Negative compressibility of a liquid with an inclusion of solid seed is predicted theoretically and verified experimentally with helium-4 crystal-superfluid system at 0.15 K. This two-phase system is shown to be stable if the crystal size is large enough, which is proven by the experiment. Crystal seeds that are too small spontaneously either melt completely or grow to a large enough size.

Original languageEnglish
Article number134101
Pages (from-to)1-4
JournalPhysical Review B
Volume97
Issue number13
DOIs
Publication statusPublished - 2 Apr 2018
MoE publication typeA1 Journal article-refereed

Fingerprint Dive into the research topics of 'Finite-size effects in thermodynamics: Negative compressibility and global instability in two-phase systems'. Together they form a unique fingerprint.

  • Projects

    QuDeT: Quantum devices in topological matter: carbon nanotubes, graphene, and novel superfluids

    Thanniyil Sebastian, A., Kaikkonen, J., Kamada, M., Manninen, J., Tan, Z., Will, M., Todoshchenko, I., Hakonen, P., Zavyalov, V., Sergeicheva, E., Song, X., Tong, F., Kumar, M., Hüttel, A., Korhonen, K. & Haque, M.

    05/11/201531/08/2021

    Project: EU: ERC grants

    Equipment

  • Cite this