TY - JOUR
T1 - Surface layering in liquid gallium
T2 - An x-ray reflectivity study
AU - Regan, M. J.
AU - Kawamoto, E. H.
AU - Lee, S.
AU - Pershan, P. S.
AU - Maskil, N.
AU - Deutsch, M.
AU - Magnussen, O. M.
AU - Ocko, B. M.
AU - Berman, L. E.
PY - 1995
Y1 - 1995
N2 - 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 Å-1, exhibit a strong maximum near 2.4 Å -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 Å. This is unexpectedly twice that of recent results for Hg, and the difference may be related to covalent bonding or supercooling.
AB - 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 Å-1, exhibit a strong maximum near 2.4 Å -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 Å. This is unexpectedly twice that of recent results for Hg, and the difference may be related to covalent bonding or supercooling.
UR - http://www.scopus.com/inward/record.url?scp=5644227843&partnerID=8YFLogxK
U2 - 10.1103/PhysRevLett.75.2498
DO - 10.1103/PhysRevLett.75.2498
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AN - SCOPUS:5644227843
SN - 0031-9007
VL - 75
SP - 2498
EP - 2501
JO - Physical Review Letters
JF - Physical Review Letters
IS - 13
ER -