IIT Ropar Progress report and presentation We have to submit a report and give a presentation in the previous semester to continue fellowship for the next.

1. Progress report
1st semester 2017-18
Basanta Kumar Parida
Dept. of Physics
I.I.T. Ropar, Punjab-140001

2. Outline
• Manuscript of 1st and 2nd articles
• Continuation of 3rd and 4th problem
• Conferences attended
• Teaching Assistant

3. Morphology changes in CoxSi1-x binary mixtures:
energy, fluence and composition variation
Low energy ion beam binary surface modification

4. Energy study
Morphological change towards
higher energies

5. Fluence study
Power law behaviour
Monotonic increase in wavelength

6. Composition study
Communicated…Bug like hierarchical structures
for higher cobalt composition

7. Influence of oblique incident primary ion species
on binary mixture

8. Argon ion irradiation
Smoothening at lower incidence angle

9. Xenon ion irradiation
Manuscript ready to be submitted…

10. Attempt for highly order nanoripples and I-V
study

11. unirradiated 10 min
15 min 30 min
45 min 60 min -20 -10 0 10 20
-0.08
-0.06
-0.04
-0.02
0.00
0.02
0.04
0.06
0.08
pristine
60 min
45 min
30 min
15 min
I(amp)
V (volt)
pristine
10 min
15 min
30 min
45 min
60 min
10 min
XX' direction
Higher time fluence leads
the patterns more coarse

12. Effect of swinging over ion irradiated binary
surface

13. Equal swinging effects over samples
-50 to +50 deg -75 to +75 deg
-100 to +100 deg -200 to +200 deg-150 to +150 deg
Ar+
-Ф
+Ф
θ
Z
X
quasi-two-dimensional mass transport

14. Unequal swinging effects
Ar+
-α
+β
θ
Z
X
-75 +125 deg-50 +150 deg
5.37 nm 5.23 nm
Work on progress…
Other activities
• Oral presentation at 4th International Conference
on Nano-structuring by Ion Beams (ICNIB 2017), at
DAVV, Indore, India
• Teaching Assistant in UG lab Course-PH-100