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Research Interests
Small-angle and grazing incidence X-ray scattering (SAXS/WAXS/GISAXS)
Magnetic thin films and multilayers for spintronics applications
Nanostructuring by low-energy ion beams
Structure-property relation in flexible polymer nanocomposites
Growth study of metallic thin films on patterned templates using in-situ GISAXS
An in situ real-time growth study of Ag film on the ion beam sculptured GaSb nanostructures
An in situ real-time growth study of Ag film on the ion beam sculptured GaSb nanostructures
Praveen Kumar Dubey , Sarath Sasi , Kumar Navin, Benedikt Sochor , Stephan V. Roth , P.S. Anil Kumar, Ajay Gupta, Sarathlal Koyiloth Vayalil https://doi.org/10.1016/j.surfin.2025.106773
Nanoripples on Si by oblique angle
500 eV Argon ion at 65 degree
Tailoring of magnetic domains by interface engineering
Creep Regime Domain Wall Dynamics in Perpendicularly Magnetized Pd/Co/Pd Trilayers
Creep Regime Domain Wall Dynamics in Perpendicularly Magnetized Pd/Co/Pd Trilayers
Anurag Keloth, Rakhul Raj, V. Raghavendra Reddy, Mukul Gupta, Ilaria Carlomagno, Andrei Gloskovksii, Timo Kuschel, Ajay Gupta, Sarathlal Koyiloth Vayalil
First published: 05 February 2025 https://doi.org/10.1002/admi.202400804
Magnetic anisotropy engineering:
Strong uniaxial magnetic anisotropy is observed with the easy axis of magnetization in a direction normal to the ripple wavevector. Appl. Phys. Lett. 98, 123111 (2011)
Appl. Sur. Sci. 258 4116–4121(2012)
J. Phys.: Condens. Matter 32 185804 (2020)
Interface magnetism
> X-ray Standing wave
> Depth-resolved XRD and XAS
Surfaces and Interfaces 56 (2025) 105716 https://doi.org/10.1016/j.surfin.2024.105716
Journal of Alloys and Compounds 960 (2023) 170588 https://doi.org/10.1016/j.jallcom.2023.170588
Flexible polymer nanocomposites
> Carbon based polumer nanocomposites
> Insitu USAXS during mechanical stretching
> Structure propery correlation
> Fractal dimensions Vs Conductivity
J. Phys. Chem. Lett. 2023, 14, 25, 5834–5840
P03 beamline, PETRA III, DESY, Hamburg, Germany , Sputterchamber "HASE" in the beamline
http://photon-science.desy.de/facilities/petra_iii/beamlines/p03_minaxs/index_eng.htm
Collaborators
Prof. Stephan V Roth, FS-SMA, DESY, Hamburg, Germany.
Prof. Ajay Gupta, UPES, Dehradun, India
Dr. V.R Reddy, Dr. Mukul Gupta UGC DAE CSR Indore
Dr. Timo Kuschel, Bielefeld University, Germany.
Prof. Peter M Buschbaum, TUM, Munich
Dr. P. Karmakar, VECC Kolkata
Some useful links
1. P03 beamline
2. DPDAK_A tool for SAXS data analysis
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