Induced Magnetic Ordering by Proton Irradiation in Graphite
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 کاملTwo phase transitions induced by a magnetic field in graphite.
Different instabilities have been speculated for a three-dimensional electron gas confined to its lowest Landau level. The phase transition induced in graphite by a strong magnetic field, and believed to be a charge density wave, is the only experimentally established case of such instabilities. Studying the magnetoresistance in graphite for the first time up to 80 T, we find that the magnetic ...
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 کاملMagnetic field-induced ordering in SrDy2O4.
Heat capacity measurements were used to investigate the magnetic ordering processes in single-crystal samples of SrDy2O4 in a magnetic field applied along the [010] and [001] directions. In zero field this compound appears to be magnetically disordered down to at least 0.39 K. A magnetic field applied along the [010] direction induces a very sharp transition at 20 kOe, seen as a strong peak in ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Physical Review Letters
سال: 2003
ISSN: 0031-9007,1079-7114
DOI: 10.1103/physrevlett.91.227201