TY - JOUR
T1 - Ordering of Ag-O chains on the Ag(110) surface
AU - Taniguchi, Masahiro
AU - Tanaka, Ken ichi
AU - Hashizume, Tomihiro
AU - Sakurai, Toshio
N1 - Funding Information:
This work was partly supportedb y a Grant-in-Aid for Scientific Research on Priority Area (03205026a) nd a Grant-in-Aid (03640398o)f the Ministry of Education, Science and Culture of Japan.
PY - 1992/2/15
Y1 - 1992/2/15
N2 - When the Ag(110) surface is exposed to O2 at room temperature, rapid growth of a linear Ag-O compound was observed on the Ag(110) surface; the growth being parallel with the 〈001〉 direction. With increasing O2 exposure, the Ag-O chains form various ordered arrangements on the Ag(110) surface. The surface exposed to 760 L of O2 is covered with Ag-O chains by making (3 × 1) and (5 × 1) ordered domains, where the (5 × 1) domain is composed of an alternate arrangement of (3 × 1) and (2 × 1) structures. When the Ag(110) surface covered with Ag-O rows in the p(2 × 1) structure was heated to about 500 K in vacuum, the p(2 × 1) overlayer was rearranged to p(4 × 1) structures, where the p(4 × 1) phase is composed of four out-of-phase p(4 × 1) domains. The domain boundaries as well as the boundary of the out-of-phase p(4 × 1 ) structures took necessarily one-dimensional fluctuating structures. The models indicate the existence of energetically degenerate sites for the Ag-O rows at the boundaries, which are responsible for the fluctuation of the boundaries.
AB - When the Ag(110) surface is exposed to O2 at room temperature, rapid growth of a linear Ag-O compound was observed on the Ag(110) surface; the growth being parallel with the 〈001〉 direction. With increasing O2 exposure, the Ag-O chains form various ordered arrangements on the Ag(110) surface. The surface exposed to 760 L of O2 is covered with Ag-O chains by making (3 × 1) and (5 × 1) ordered domains, where the (5 × 1) domain is composed of an alternate arrangement of (3 × 1) and (2 × 1) structures. When the Ag(110) surface covered with Ag-O rows in the p(2 × 1) structure was heated to about 500 K in vacuum, the p(2 × 1) overlayer was rearranged to p(4 × 1) structures, where the p(4 × 1) phase is composed of four out-of-phase p(4 × 1) domains. The domain boundaries as well as the boundary of the out-of-phase p(4 × 1 ) structures took necessarily one-dimensional fluctuating structures. The models indicate the existence of energetically degenerate sites for the Ag-O rows at the boundaries, which are responsible for the fluctuation of the boundaries.
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U2 - 10.1016/0039-6028(92)90120-U
DO - 10.1016/0039-6028(92)90120-U
M3 - Article
AN - SCOPUS:0026818781
SN - 0039-6028
VL - 262
SP - L123-L128
JO - Surface Science
JF - Surface Science
IS - 3
ER -