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Square ice in graphene nanocapillaries
G. Algara-Siller, O. Lehtinen, F. C. Wang +5
Adsorbed layers of water are ubiquitously present at surfaces and fill in microscopic pores, playing a central role in many phenomena in such diverse fields as materials science, g…
Non-invasive transmission electron microscopy of vacancy defects in graphene produced by ion irradiation
Ossi Lehtinen, I-Ling Tsai, Rashid Jalil +4
Irradiation with high-energy ions has been widely suggested as a tool to engineer properties of graphene. Experiments show that it indeed has a strong effect on its transport, magn…
Dual origin of defect magnetism in graphene and its reversible switching by molecular doping
R. R. Nair, I-Ling Tsai, M. Sepioni +7
A possibility to control magnetic properties by using electric fields is one of the most desirable characteristics for spintronics applications. Finding a suitable material remains…
Spin-half paramagnetism in graphene induced by point defects
R. R. Nair, M. Sepioni, I-Ling Tsai +6
Using magnetization measurements, we show that point defects in graphene - fluorine adatoms and irradiation defects (vacancies) - carry magnetic moments with spin 1/2. Both types o…