The high pressure infrared and Raman spectra for the ε phase of a series of oxygen samples, 16O2, 16O2 with 10% 18O2, and 18O2 with 6% 16O 18O, are reported. Assignments are made for the fundamental, combination, and isotope‐induced features of this phase of solid oxygen based on a simple model that incorporates a pairwise interaction betweeen nearest‐neighbor oxygen molecules within the molecular oxygen plane, with pairs forming extended chains. Vibrational analysis on this chain with two interaction force constants reproduces all of the features that we have observed.
REFERENCES
1.
2.
I. N.
Krupskii
, A. I.
Prokhvatilov
, Yu. A.
Freiman
, and A. I.
Erenburg
, Sov. J. Low Temp. Phys.
5
, 131
(1979
).3.
R. D.
Etters
, A. A.
Helmy
, and K.
Kabushi
, Phys. Rev. B
28
, 2166
(1983
).4.
D.
Schiferl
, D. T.
Cromer
, L. A.
Schwalbe
, and R. L.
Mills
, Acta Crystallogr. Sect. B
39
, 153
(1983
).5.
K. Syassen and M. Nicol, Physics of Solids under High Pressure, edited by J. S. Schilling and R. N. Shelton (North‐Holland, New York, 1981), pp. 33–38
6.
B. I.
Swanson
, S. F.
Agnew
, L. H.
Jones
, R. L.
Mills
, and D.
Schiferl
, J. Phys. Chem.
87
, 2463
(1983
).7.
B.
Olinger
, R. L.
Mills
, and R. B.
Roof
, J. Chem. Phys.
81
, 5068
(1984
).8.
9.
10.
L. H.
Jones
, S. F.
Agnew
, B. I.
Swanson
, and S. A.
Eckberg
, J. Chem. Phys.
85
, 428
(1986
).11.
12.
R. L.
Mills
, D. H.
Liebenberg
, J. C.
Bronson
, and J. C.
Schmidt
, Rev. Sci. Instrum.
51
, 891
(1980
).13.
G. J.
Piermarini
, S.
Block
, J. D.
Barnett
, and R. A.
Forman
, J. Appl. Phys.
46
, 2774
(1975
).14.
This content is only available via PDF.
© 1987 American Institute of Physics.
1987
American Institute of Physics
You do not currently have access to this content.
