OBSERVATION OF SOLID-HEXATIC-LIQUID PHASE-TRANSITIONS OF SUBMONOLAYERXENON ON GRAPHITE BY TRANSMISSION-ELECTRON DIFFRACTION

Authors
ZERROUK TEA HAMICHI M PILKINGTON JDH VENABLES JA
Citation
Tea. Zerrouk et al., OBSERVATION OF SOLID-HEXATIC-LIQUID PHASE-TRANSITIONS OF SUBMONOLAYERXENON ON GRAPHITE BY TRANSMISSION-ELECTRON DIFFRACTION, Physical review. B, Condensed matter, 50(12), 1994, pp. 8946-8949
Citations number
41
Categorie Soggetti
Physics, Condensed Matter
Journal title
Physical review. B, Condensed matter → ACNP
ISSN journal
01631829
Volume
50
Issue
12
Year of publication
1994
Pages
8946 - 8949
Database
ISI
SICI code
0163-1829(1994)50:12<8946:OOSPOS>2.0.ZU;2-Y
Abstract
Two-stage melting of submonolayer xenon adsorbed on single-crystal gra phite has been observed using transmission high-energy electron diffra ction. Diffraction patterns were obtained from the solid, hexatic, and liquid phases for 11<p<41x10(-3) torr and 110<T<120 K. The aligned so lid melts via a hexatic phase to an essentially isotropic liquid withi n a 1-K interval at constant pressure. The lattice parameter and spot profiles of the hexatic phase are reported, and the order of the trans itions discussed in relation to previous thermodynamic and diffraction measurements.