Edge Pinning Effects and Giant Thermal Instability of Magnetization Hysteresis Loops in Thin Nano-Scale Magnets |
| A.F. Popkova, L.L. Savchenkob and N.V. Vorotnikovac a Zelenograd Research Institute of Physical Problems Zelenograd, 103575 Moscow, Russia b Physical Department, Moscow State University Vorobjevy Gory, 119899 Moscow, Russia cInstitute of Physics and Technology, Russian Academy of Science Nakhimovsky avenue 34, 117218 Moscow, Russia |
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| Magnetization reversal modes of super-thin nano-scale particles with a high magnetization and low anisotropy are analyzed by solving magnetic moment motion equations. A new kind of thermal hysteresis instability connected with the random mutual transformation of the main magnetization modes is predicted by simulations. |
| DOI: 10.12693/APhysPolA.97.499 PACS numbers: 75.60.Ej, 67.80.Jd |