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Title (Primary) Enhancement of the ferromagnetic order of graphite after sulphuric acid treatment
Author Barzola-Quiquia, J.; Böhlmann, W.; Esquinazi, P.; Schadewitz, A.; Ballestar, A.; Dusari, S.; Schultze-Nobre, L.; Kersting, B.;
Journal Applied Physics Letters
Year 2011
Department UBT;
Volume 98
Language englisch;
Keywords enhanced magnetoresistance; ferromagnetic materials; graphite; magnetic particles; magnetisation
Abstract We have studied the changes in the ferromagnetic behavior of graphite powder and graphite flakes after treatment with diluted sulphuric acid. We show that this kind of acid treatment enhances substantially the ferromagnetic magnetization of virgin graphite micrometer size powder as well as in graphite flakes. The anisotropic magnetoresistance amplitude at 300 K measured in a micrometer size thin graphite flake after acid treatment reaches values comparable to polycrystalline cobalt.
ID 11028
Persistent UFZ Identifier https://www.ufz.de/index.php?en=20939&ufzPublicationIdentifier=11028
Barzola-Quiquia, J., Böhlmann, W., Esquinazi, P., Schadewitz, A., Ballestar, A., Dusari, S., Schultze-Nobre, L., Kersting, B. (2011):
Enhancement of the ferromagnetic order of graphite after sulphuric acid treatment
Appl. Phys. Lett. 98 , 192511