Magnetism inC60films induced by proton irradiation
نویسندگان
چکیده
منابع مشابه
Induced magnetic ordering by proton irradiation in graphite.
We provide evidence that proton irradiation of energy 2.25 MeV on highly oriented pyrolytic graphite samples triggers ferro- or ferrimagnetism. Measurements performed with a superconducting quantum interferometer device and magnetic force microscopy reveal that the magnetic ordering is stable at room temperature.
متن کاملIrradiation-induced magnetism in graphite: a density functional study.
Recent experiments indicate that proton irradiation triggers ferromagnetism in originally nonmagnetic graphite samples while He ion bombardment has a much smaller effect. To understand the origin of irradiation-induced magnetism, we have performed spin-polarized density functional theory calculations of the magnetic properties of the defects which are most likely to appear under irradiation vac...
متن کاملTitle: Irradiation-Induced Magnetism in Graphite: A Density Functional Study
Rights: © 2004 American Physical Society (APS). This is the accepted version of the following article: Lehtinen, P. O. & Foster, Adam S. & Ma, Yuchen & Krasheninnikov, A. V. & Nieminen, R. M.. 2004. Irradiation-Induced Magnetism in Graphite: A Density Functional Study. Physical Review Letters. Volume 93, Issue 18. 187202/1-4. ISSN 0031-9007 (printed). DOI: 10.1103/physrevlett.93.187202, which h...
متن کاملIon Irradiation Induced Magnetism in Carbon-based Compounds
Because of the biological compatibility, light weight and low cost, the possibility of having a room temperature carbon-based metal-ion free magnet attracts currently the interest of the scientific community. The search for magnetic ordering in carbon-based materials started, however, more than 15 years ago as Makarova [1] recently reviewed in detail. First claims on the existence of carbon-bas...
متن کاملProton Irradiation
' The kinetics of recuperation following initial doses of 470 rads of 56 Mev protons and 350 rads of Co" 7 radiation were investigated by means of the paired-dose method. By using semilog plots, recovery half-times of 4.85 ± .85 days and 2.02 ± .45 day» were found after initial doses of the protons and Co' 7 radiation, respectively.
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ژورنال
عنوان ژورنال: Physical Review B
سال: 2007
ISSN: 1098-0121,1550-235X
DOI: 10.1103/physrevb.75.075426