17.2 Sharp Features: Brillion Zones and Energy Bands
333
I
I 0
00
(arb. unit)
23.5
o
63.5
58.5
53.5
48.5
43.5
38.5
33.5
28.5
18.5
Θ = 69.0 o
7.5
10.0
12.5
15.0
Energy (eV)
300 L O-exposed Cu(001)
-resolved VLEED profiles
Φ
Fig. 17.1 Angular-resolved VLEED profiles collected from a Cu(001) surface exposed to 300 L
oxygen at 69.0° incidence [4]. The azimuth angles are labeled for each curve. There is a “crosspoint” at about 45°. Two small sharp Bragg peaks (denoted by dotted lines) appear on each curve.
The broaden fine-structure feature (dashed lines) splits when the azimuth moves away from the 11
direction. Reprinted with copyright permission from [3]
333
I
I 0
00
(arb. unit)
23.5
o
63.5
58.5
53.5
48.5
43.5
38.5
33.5
28.5
18.5
Θ = 69.0 o
7.5
10.0
12.5
15.0
Energy (eV)
300 L O-exposed Cu(001)
-resolved VLEED profiles
Φ
Fig. 17.1 Angular-resolved VLEED profiles collected from a Cu(001) surface exposed to 300 L
oxygen at 69.0° incidence [4]. The azimuth angles are labeled for each curve. There is a “crosspoint” at about 45°. Two small sharp Bragg peaks (denoted by dotted lines) appear on each curve.
The broaden fine-structure feature (dashed lines) splits when the azimuth moves away from the 11
direction. Reprinted with copyright permission from [3]