Discontinuous growth of solid 4He on graphene

Aaron M. Koga, Yoshiyuki Shibayama, Keiya Shirahama

Research output: Contribution to journalArticle

Abstract

We have studied the growth of solid 4He on multilayer graphene immersed in the superfluid well below the bulk freezing pressure using the torsional oscillator method at temperatures from 1.65 to 0.1 K. Below 1.2 K, the growth of one solid layer is observed as a series of discontinuous steps, each accompanied by energy dissipation. We speculate that the discontinuities result from a series of two-dimensional structural phase transitions of the uppermost solid layer, between several commensurate and incommensurate states.

Original languageEnglish
Article number093601
JournalJournal of the Physical Society of Japan
Volume82
Issue number9
DOIs
Publication statusPublished - 2013 Sep 1

Keywords

  • Adsorbed solid growth
  • Graphene
  • Layering transition
  • Solid He
  • Two-dimensional phase transition

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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