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On the Question of Ferromagnetism in Proton and He-Irradiated Carbon

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Szczytko J., Juszyński P., Teliga L., Twardowski A., Stonert A., Ratajczak R., Korman A.

Acta Physica Polonica A

2008

vol. 114

issue 5

1387-1390

We tried to repeat the observation of the ferromagnetic response in proton and He-irradiated carbon made by the group of Esquinazi et al. We used He^+ and H^+ beams focused on graphite sample. The amount of charge deposited in the sample was comparable to the amount of charge used by Esquinazi. Magnetic measurements were performed in SQUID magnetometer. The magnetization of the samples before and after irradiation was compared. We did not observe any ferromagnetic enhancement of magnetization of our irradiated samples. Even if experiment was not the same as Esqinazi's one, we can exclude some of the mechanisms of ferromagnetism proposed by Esquinazi.

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1 Acta Physica Polonica A

1 2008

1 Juszyński P.

1 Korman A.

1 Ratajczak R.

1 Stonert A.

1 Szczytko J.

1 Teliga L.

1 Twardowski A.

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On the Question of Ferromagnetism in Proton and He-Irradiated Carbon