Physics – Condensed Matter – Strongly Correlated Electrons
Scientific paper
2012-04-13
Physics
Condensed Matter
Strongly Correlated Electrons
1, 0 figures, 9 references
Scientific paper
This comment addresses several issues in the paper by Sepioni et al., where it is stated that the ferromagnetism in pristine highly oriented pyrolytic graphite (HOPG) reported by several groups in the previous years is most likely due to impurity contamination. In this comment, clear arguments are given why this statement is not justified. Furthermore, it is pointed out, that there are already measurements using element-sensitive microscopic techniques, e.g. X-ray Magnetic Circular Dichroism (XMCD) that directly proved the intrinsic origin of the ferromagnetism in graphite, also in pristine HOPG.
Esquinazi Pablo
Kopelevich Yakov
Ohldag H.
Ramos Marcel
Rothermel M.
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Comment on: "Revealing common artifacts due to ferromagnetic inclusions in highly oriented pyrolytic graphite", by M. Sepioni, R.R. Nair, I.-Ling Tsai, A.K. Geim and I.V. Grigorieva, EPL 97 (2012) 47001 does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
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