Results 31 to 40 of about 3,908 (264)

Effect of swift heavy ions in Ni–Al nanocrystalline films studied by X-ray absorption spectroscopy

, 2011
X-ray absorption spectroscopic measurements have been used to compare the electronic structures of swift heavy ions (100 MeV Si ions) irradiated and pristine Ni–Al nanocrystalline films.
Tsai, H.-M.; Bao, C.-W.; Chiou, J.-W.; Pong, W.-F., Tsai, H.M.; Bao, C.W.; Chiou, J.W.; Pong, W.F., Asokan, K.   +2 more
core   +1 more source

Observation of exchange bias in nanoscale AuFe alloy film

Materials Research Express, 2020
We report on observation of the exchange bias effect in AuFe co-sputtered alloy films in the as-deposited state and following swift heavy ion irradiation. The Mössbauer spectrum for the as-deposited film shows a broad paramagnetic doublet together with a
Compesh Pannu, Santanu Ghosh, Pankaj Srivastava, K Bharuth-Ram, V R Reddy, Ajay Gupta, Debdulal Kabiraj, D K Avasthi   +7 more
doaj   +1 more source

Chemical modifications induced in bisphenol A polycarbonate by swift heavy ions

, 2003
The chemical modifications in bisphenol A polycarbonate induced by swift heavy ion irradiation are analyzed in situ by means of Fourier transform infrared (FTIR) spectroscopy. Four beams (C-13, Ne-20, Ca-48, Xe-129) with energy of a few MeV/amu have been
Legras, Roger, 5th International Symposium on Swift Heavy Ions in Matter (SHIM 2002), Ferain, Etienne, Dehaye, Frédérique, Balanzat, E   +4 more
core   +1 more source

Tuning the conductivity of vanadium dioxide films on silicon by swift heavy ion irradiation

AIP Advances, 2011
We demonstrate the generation of a persistent conductivity increase in vanadium dioxide thin films grown on single crystal silicon by irradiation with 1 GeV 238U swift heavy ions at room temperature.
H. Hofsäss, P. Ehrhardt, H.-G. Gehrke, M. Brötzmann, U. Vetter, K. Zhang, J. Krauser, C. Trautmann, C. Ko, S. Ramanathan   +9 more
doaj   +1 more source

Study of Radiation Embitterment and Degradation Processes of Li₂ZrO₃ Ceramic under Irradiation with Swift Heavy Ions

Ceramics, 2021
The work is devoted to the study of radiation damage and subsequent swelling processes of the surface layer of Li2ZrO3 ceramics under irradiation with heavy Xe22+ ions, depending on the accumulation of the radiation dose.
Baurzhan Abyshev, Artem L. Kozlovskiy, Kassym Sh Zhumadilov, Alex V. Trukhanov   +3 more
doaj   +1 more source

Ionizing radiation as a powerful tool for modification of metallic nanostructures

Eurasian Journal of Physics and Functional Materials, 2021
This paper presents a case study of targeted modification of the structure and properties of zinc nanotubes ordered arrays by treatment with Xe+22 and Kr+17 swift heavy ions (SHI).
K. K. Kadyrzhanov, A. L. Kozlovskiy, A. A. Mashentseva   +2 more
doaj   +1 more source

Creating nanoporous graphene with swift heavy ions

, 2017
We examine swift heavy ion-induced defect production in suspended single layer graphene using Raman spectroscopy and a two temperature molecular dynamics model that couples the ionic and electronic subsystems.
Ochedowski, O., Vázquez, H., Lebius, Henning, Mirzayev, R., Schleberger, M., Leino, A.A., Lebius, H., Schlebeger, M., Krasheninnikov, A. V., Jaksic, M., Kozubek, R., Åhlgren, E. H., Leino, A. A., Karlusic, M., Kotakoski, J., Djurabekova, F., Krasheninnikov, A.V., Nordlund, K., Kotakoski, Jani, Åhlgren, E.H.   +19 more
core   +1 more source

Recent Advances in Laser‐Induced Graphene‐Based Gas Sensors: From Sensing Mechanisms to Biomedical Applications

Advanced Science, EarlyView.
Laser‐induced graphene (LIG) provides a scalable, laser‐direct‐written route to porous graphene architecture with tunable chemistry and defect density. Through heterojunction engineering, catalytic functionalization, and intrinsic self‐heating, LIG achieves highly sensitive and selective detection of NOX, NH3, H2, and humidity, supporting next ...
Md Abu Sayeed Biswas, Ankan Dutta, Shuvendu Das, Abu Musa Abdullah, Wanqing Zhang, Fatema Tuz Zohra, Huanyu Cheng   +6 more
wiley   +1 more source

Modeling and X-ray Analysis of Defect Nanoclusters Formation in B₄C under Ion Irradiation

Nanomaterials, 2022
In the presented work, B4C was irradiated with xenon swift heavy ions at the energy of 167 MeV. The irradiation of the substrate was done at room temperature to a fluence of 3.83 × 1014 ion/cm2.
Matlab N. Mirzayev, Alexander A. Donkov, Evgeni A. Popov, Ertugrul Demir, Sakin H. Jabarov, Levan S. Chkhartishvili, Samuel A. Adeojo, Aleksandr S. Doroshkevich, Alexey A. Sidorin, Asif G. Asadov, Thabsile T. Thabethe, Mayeen U. Khandaker, Sultan Alamri, Hamid Osman, Alex V. Trukhanov, Sergei V. Trukhanov   +15 more
doaj   +1 more source

Swift heavy ions for materials engineering and nanostructuring

, 2011
Ion beams have been used for decades for characterizing and analyzing materials. Now energetic ion beams are providing ways to modify the materials in unprecedented ways.
Mehta, Girijesh Kumar, D. K. Avasthi, G. K. Mehta, Avasthi, Devesh Kumar   +3 more
core   +1 more source