Ferromagnetism in Oriented Graphite Samples

Phys. Rev. B 66, 024429 (2002) 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 impuritie...

Full description

Saved in:
Bibliographic Details
Main Authors Esquinazi, P, Setzer, A, Hoehne, R, Semmelhack, C, Kopelevich, Y, Spemann, D, Butz, T, Kohlstrunk, B, Loesche, M
Format Journal Article
LanguageEnglish
Published 07.03.2002
Subjects
Physics - Materials Science
Physics - Strongly Correlated Electrons
Online AccessGet full text

Cover

More Information
Summary:Phys. Rev. B 66, 024429 (2002) 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.
DOI:10.48550/arxiv.cond-mat/0203153