Magnetism in C60 Films Induced by Proton Irradiation

S. Mathew; B. Satpati; B. Joseph; B. N. Dev; R. Nirmala; S. K. Malik

Magnetism in C60 Films Induced by Proton Irradiation

Materials Science 2007-05-23 v2

Authors: S. Mathew , B. Satpati , B. Joseph , B. N. Dev , R. Nirmala , S. K. Malik

Abstract

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 both the pristine and the irradiated film show diamagnetic behavior. Magnetization data in the temperature range 2 - 300 K, in 1 Tesla applied field, for the irradiated film shows much stronger temperature dependence compared to the pristine film. Possible origin of ferromagnetic-like signals in the irradiated films are discussed.

Keywords

C60 films proton irradiation ferromagnetism magnetization temperature dependence

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@article{arxiv.cond-mat/0503315,
  title  = {Magnetism in C60 Films Induced by Proton Irradiation},
  author = {S. Mathew and B. Satpati and B. Joseph and B. N. Dev and R. Nirmala and S. K. Malik},
  journal= {arXiv preprint arXiv:cond-mat/0503315},
  year   = {2007}
}

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4 pages, 4 figures, Submitted to Phys. Rev. B (Rapid Communication)

Magnetism in C60 Films Induced by Proton Irradiation

Abstract

Keywords

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