Published September 25, 1995 | Version v1
Journal article Metadata-only

Surface layering in liquid gallium: An X-ray reflectivity study

Creators

  • 1. Division of Applied Sciences and Department of Physics, Harvard University, Cambridge, Massachusetts 02138 (United States)
  • 2. Department of Physics, Bar-Ilan University, Ramat-Gan 52100 (Israel)
  • 3. Department of Physics, Brookhaven National Laboratory, Upton, New York 11973 (United States)
  • 4. National Synchrotron Light Source, Brookhaven National Laboratory, Upton, New York 11973 (United States)

Description

Surface-induced atomic layering in liquid gallium has been observed using x-ray reflectivity, ultrahigh vacuum conditions, and sputtered clean surfaces. Reflectivity data, collected on a supercooled liquid sample to momentum transfers as large as qz=3.0 A-1, exhibit a strong maximum near 2.4 A-1 indicating a layer spacing that is comparable to its atomic dimensions. The amplitude of the electron density oscillations decays with a characteristic length of 6 A. This is unexpectedly twice that of recent results for Hg, and the difference may be related to covalent bonding or supercooling

Additional details

Publishing Information

Journal Title
Physical Review Letters
Journal Volume
75
Journal Issue
13
Journal Page Range
p. 2498-2501.
ISSN
0031-9007
CODEN
PRLTAO

INIS

Country of Publication
United States
Country of Input or Organization
United States
INIS RN
27055656
Subject category
S36: MATERIALS SCIENCE; S75: CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY;
Descriptors DEI
GALLIUM; LIQUIDS; MICROSTRUCTURE; REFLECTIVITY; SUBCOOLING; SURFACE PROPERTIES; X-RAY SPECTROSCOPY
Descriptors DEC
COOLING; CRYSTAL STRUCTURE; ELEMENTS; FLUIDS; METALS; OPTICAL PROPERTIES; PHYSICAL PROPERTIES; SPECTROSCOPY