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

• Authors: J. Szczytko , P. Juszyński , L. Teliga , A. Twardowski , A. Stonert , R. Ratajczak , A. Korman
• Languages of publication: EN

Abstracts

EN

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.

Keywords

EN

75.20.Ck; 75.50.Dd

Discipline

• 75.20.Ck: Nonmetals
• 75.50.Dd: Nonmetallic ferromagnetic materials

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2008
• Volume: 114
• Issue: 5
• Pages: 1387-1390

Dates

published

2008-11

received

2008-06-07

Contributors

author

J. Szczytko

• Institute of Experimental Physics, Faculty of Physics, University of Warsaw, Hoża 69, 00-681 Warsaw, Poland

author

P. Juszyński

• Institute of Experimental Physics, Faculty of Physics, University of Warsaw, Hoża 69, 00-681 Warsaw, Poland

author

L. Teliga

• Institute of Experimental Physics, Faculty of Physics, University of Warsaw, Hoża 69, 00-681 Warsaw, Poland

author

A. Twardowski

• Institute of Experimental Physics, Faculty of Physics, University of Warsaw, Hoża 69, 00-681 Warsaw, Poland

author

A. Stonert

• The Andrzej Sołtan Institute for Nuclear Studies, Hoża 69, 00-681 Warsaw, Poland

author

R. Ratajczak

• The Andrzej Sołtan Institute for Nuclear Studies, Hoża 69, 00-681 Warsaw, Poland

author

A. Korman

• The Andrzej Sołtan Institute for Nuclear Studies, Hoża 69, 00-681 Warsaw, Poland

References

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Identifiers

DOI

10.12693/APhysPolA.114.1387