Ferromagnetism in Oriented Graphite Samples

We have studied the magnetization of various, well characterized samples of highly oriented pyrolitic graphite (HOPG), Kish graphite and natural graphite to investigate the recently reported ferromagnetic-like signal and its possible relation to ferromagnetic impurities. The magnetization results ob...

Full description

Saved in:
Bibliographic Details
Published inarXiv.org
Main Authors Esquinazi, P, Setzer, A, Hoehne, R, Semmelhack, C, Kopelevich, Y, Spemann, D, Butz, T, Kohlstrunk, B, Loesche, M
Format Paper
LanguageEnglish
Published Ithaca Cornell University Library, arXiv.org 07.03.2002
Subjects
Diamagnetism
Ferromagnetism
Graphene
Graphite
Impurities
Magnetization
Online AccessGet full text

Cover

More Information
Summary:We have studied the magnetization of various, well characterized samples of highly oriented pyrolitic graphite (HOPG), Kish graphite and natural graphite to investigate the recently reported ferromagnetic-like signal and its possible relation to ferromagnetic impurities. The magnetization results obtained for HOPG samples for applied fields parallel to the graphene layers - to minimize the diamagnetic background - show no correlation with the magnetic impurity concentration. Our overall results suggest an intrinsic origin for the ferromagnetism found in graphite. We discuss possible origins of the ferromagnetic signal.
ISSN:2331-8422
DOI:10.48550/arxiv.0203153