Title: Magnetic structure of endohedral fullerenes

Authors: Syed Sibghatullah Kazmi, Amal A.A Abou-Hajar, Mohammed Saeed G. Al-Ahmadi, Khursheed Athar Siddiqui

Addresses: Department of Physics, Faculty of Science, King Abdulaziz University, Jeddah, Kingdom of Saudi Arabia. ' Department of Physics, Faculty of Science, King Abdulaziz University, Jeddah, Kingdom of Saudi Arabia. ' Department of Physics, Faculty of Science, King Abdulaziz University, Jeddah, Kingdom of Saudi Arabia. ' Department of Physics, Faculty of Science, King Abdulaziz University, Jeddah, Kingdom of Saudi Arabia

Abstract: The fullerene molecule, C60, has the capability to host a variety of atoms inside an icosahedral cage. Endohedrally doped fullerene structures are important to understand the behaviour of atoms with unfilled f shell. Electronic structure and magnetism of rare earth doped endohedral fullerenes with icosahedral symmetries are studied. A many body perturbation theory has been used to calculate the exchange interactions among the pairs of rare earth ions with two f-electrons. The ground multiplet of pairs is found to be non-magnetic. Possibilities of Raman transitions are also discussed. It is expected that the present approach will lead to an understanding of the magnetism of nano-materials.

Keywords: endohedral fullerenes; magnetic properties; rare earth doped fullerenes; nanotechnology; magnetism; nanomaterials; Raman transitions.

DOI: 10.1504/IJNP.2009.028780

International Journal of Nanoparticles, 2009 Vol.2 No.1/2/3/4/5/6, pp.451-457

Published online: 30 Sep 2009 *

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