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Swift heavy ion induced surface modifications in nano-crystalline Li-Mg ferrite thin films |
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| Authors: | Sanjukta Ghosh V. Ganesan Pushan Ayyub |
| Affiliation: | a Institute of Physics, Sachivalaya Marg, Bhubaneswar 751005, India b Department of Physics, University of Calcutta, 92 A.P.C. Road, Kolkata 700009, India c Inter University Consortium for DAE facilities, Khandwa Road, Indore 452017, India d Nuclear Science Centre, Aruna Asaf Ali Marg, New Delhi 110067, India e Tata Institute of Fundamental Research, Homi Bhabha Road, Mumbai 400005, India f Solid State Physics Laboratory, DRDO, Lucknow Road, Delhi 110054, India |
| Abstract: | The swift heavy ion (190 MeV Au14+) induced modifications in surface morphologies of the nanocrystals of ferrite thin films have been extensively studied through the images of atomic force microscopy (AFM). In most of the irradiated films significant features like, the ditch and dike structures, have been observed through out the surface. We try to explain the observed changes on the basis of thermal spike model followed by momentum transfer induced lateral mass transport. In addition to these changes some new and interesting features have been noticed after irradiation in 8F and 9F ferrite thin films. These new features are attributed to sputtering phenomenon due to the presence of defects like latent tracks. |
| Keywords: | 75.50.Gg 61.80.&minus x 68.37.Ps |
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