TY - JOUR
T1 - Rotated incommensurate domains of Co ultrathin films on Pt(111)
AU - Tsay, J. S.
AU - Shern, Ching-Song
N1 - Funding Information:
This work was supported by the National Science Council of ROC under Grant No. NSC 86-2112-M-003-002.
PY - 1998/1
Y1 - 1998/1
N2 - Low energy electron diffraction (LEED) and Auger electron spectroscopy were used to study the initial growth of cobalt ultrathin films on a Pt(111) surface at room and low temperatures. The films show incoherent epitaxy at room temperature. Unrotated and rotated incommensurate Co domains with two equivalent angles of rotation, +4.9° and -4.9°, with respect to the aligned substrate, are observed by LEED for 2 monolayers of Co/Pt(111) after applying an annealing treatment. From a calculation of the mismatch for the corrugated surface, we confirm this reorientation angle. The evolution of the LEED satellite pattern for the deposition at 140 K is the same as for the deposition at room temperature, but a faint (2 × 2) LEED pattern was observed for higher coverages. UV photoelectron spectroscopy was used to monitor the evolution of the density of electronic states during deposition.
AB - Low energy electron diffraction (LEED) and Auger electron spectroscopy were used to study the initial growth of cobalt ultrathin films on a Pt(111) surface at room and low temperatures. The films show incoherent epitaxy at room temperature. Unrotated and rotated incommensurate Co domains with two equivalent angles of rotation, +4.9° and -4.9°, with respect to the aligned substrate, are observed by LEED for 2 monolayers of Co/Pt(111) after applying an annealing treatment. From a calculation of the mismatch for the corrugated surface, we confirm this reorientation angle. The evolution of the LEED satellite pattern for the deposition at 140 K is the same as for the deposition at room temperature, but a faint (2 × 2) LEED pattern was observed for higher coverages. UV photoelectron spectroscopy was used to monitor the evolution of the density of electronic states during deposition.
KW - Auger electron spectroscopy
KW - Cobalt
KW - Low energy electron diffraction
KW - Metal-metal nonmagnetic thin film structures
KW - Metallic films
KW - Platinum
KW - UV photoelectron spectroscopy
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U2 - 10.1016/S0039-6028(97)00691-2
DO - 10.1016/S0039-6028(97)00691-2
M3 - Article
AN - SCOPUS:0031705289
VL - 396
SP - 319
EP - 326
JO - Surface Science
JF - Surface Science
SN - 0039-6028
IS - 1-3
ER -