5 papers
Magnetism in C60 Films Induced by Proton Irradiation
S. Mathew, B. Satpati, B. Joseph +3
It is shown that polycrystalline fullerene thin films on hydrogen passivated Si(111) substrates irradiated by 2 MeV protons displays ferromagnetic-like behavior at 5 K. At 300 K bo…
Ion Irradiation Induced Effects in Metal Nanostructures
B. Satpati, P. V. Satyam, T. Som +1
High resolution transmission electron microscopy (HRTEM) and Rutherford backscattering spectrometry (RBS) are used to study the ion induced effects in Au, Ag nanostructures grown o…
Energy dependent sputtering of nano-clusters from a nanodisperse target and embedding of nanoparticles into a substrate
B. Satpati, J. Ghatak, B. Joseph +4
Au nanoparticles, prepared by thermal evaporation under high vacuum condition on Si substrate, are irradiated with Au ions at different ion energies. During ion irradiation, embedd…
Ion-beam induced 1D to 3D periodic transformation in nanostructured multilayers
S. Bera, B. Satpati, K. Bhattacharjee +2
Ion-irradiation-induced modifications of a periodic Pt/C multilayer system containing Fe impurity have been analyzed by transmission electron microscopy (TEM). The multilayer stack…
High Temperature Ferromagnetism in Zn1-xMnxO semiconductor thin films
Nikoleta Theodoropoulou, Vinith Misra, John Philip +5
Clear evidence of ferromagnetic behavior at temperatures >400 K as well as spin polarization of the charge carriers have been observed in ZnMnO thin films grown on Al2O3 and MgO su…