EPL, 98, 57006 (2012)

D. Spemann, M. Rothermel, P. Esquinazi, M. A. Ramos, Y. Kopelevich, and H. Ohldag

Abstract

Herewith we would like to comment on the recently reported study on “common artifacts” due to impurities
published by Sepioni et al. [1] related to the magnetic order measured in highly oriented pyrolytic graphite (HOPG) samples.