Presentation by Dr. V. C. Sahni, Director, RRCAT - Raja Ramanna ...
Presentation by Dr. V. C. Sahni, Director, RRCAT - Raja Ramanna ...
Presentation by Dr. V. C. Sahni, Director, RRCAT - Raja Ramanna ...
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Reflectivity Beamline on Indus-1<br />
18<br />
(a)<br />
d = 89Å<br />
δ x 10 -3<br />
15<br />
12<br />
9<br />
0 200 400<br />
18<br />
(b)<br />
Mo<br />
16<br />
Mo/Si multilayer: Interfacial studies<br />
• Period 89Å (30Å Mo/ 59Å Si) 5<br />
• Reflectivity Measurement @ λ=80Å<br />
Reflectivity<br />
0.020<br />
0.015<br />
0.010<br />
0.005<br />
Measured at λ=80Å<br />
using four layer model<br />
using two layer model<br />
20 30 40<br />
Incidence Angle (deg)<br />
δ x 10 -3<br />
14<br />
12<br />
Si-on-Mo<br />
8Å<br />
Si<br />
40 50 60 70 80 90 100<br />
Depth in Å<br />
Mo-on-Si<br />
10Å<br />
Multilayer depth profile extracted<br />
from reflectivity data<br />
• Mo-on-Si Interface is thicker than the Sion-Mo<br />
interface<br />
• Interface asymmetry is due to large<br />
difference in thermal conductivities of Mo<br />
and Si
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