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Please use this identifier to cite or link to this item: http://purl.org/purl/4377

Title: Swift heavy ion induced surface modification for tailoring coercivity in Fe–Ni based amorphous thin films
Authors: Anantharaman, M R
Senoy, Thomas
Hysen, Thomas
Avasthi, D K
Tripathi, A
Ramanujan, R V
Issue Date: 10-Feb-2009
Publisher: AIP Publishing
Abstract: Fe–Ni based amorphous thin films were prepared by thermal evaporation. These films were irradiated by 108 MeV Ag8+ ions at room temperature with fluences ranging from 1 1012 to 3 1013 ions/cm2 using a 15 UD Pelletron accelerator. Glancing angle x-ray diffraction studies showed that the irradiated films retain their amorphous nature. The topographical evolution of the films under swift heavy ion SHI bombardment was probed using atomic force microscope and it was noticed that surface roughening was taking place with ion beam irradiation. Magnetic measurements using a vibrating sample magnetometer showed that the coercivity of the films increases with an increase in the ion fluence. The observed coercivity changes are correlated with topographical evolution of the films under SHI irradiation. The ability to modify the magnetic properties via SHI irradiation could be utilized for applications in thin film magnetism
Description: J. Appl. Phys. 105, 033910 2009
URI: http://dyuthi.cusat.ac.in/purl/4377
Appears in Collections:Dr. M R Anantharaman

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