The Imry–Ma Phase in a Nanocrystalline Ferromagnet
A possibility of appearing a disordered Imry–Ma state induced by fluctuations of the anisotropy easy axis direction in a nanocrystalline sample in the case of a weak exchange interaction between crystallites has been studied. A phase diagram of the system has been built in variables “the characteris...
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| Veröffentlicht in: | Physics of the solid state 2018-09, Vol.60 (9), p.1733-1736 |
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| container_title | Physics of the solid state |
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| creator | Berzin, A. A. Morosov, A. I. Sigov, A. S. |
| description | A possibility of appearing a disordered Imry–Ma state induced by fluctuations of the anisotropy easy axis direction in a nanocrystalline sample in the case of a weak exchange interaction between crystallites has been studied. A phase diagram of the system has been built in variables “the characteristic crystallite size–the exchange integral of the intercrystallite interaction.” The characteristic value of statistic fluctuations of the crystallographic anisotropy has been estimated, and the dependences of the coercive field on the crystallite size have been found for systems of various space dimensions. |
| doi_str_mv | 10.1134/S1063783418090056 |
| format | Article |
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| ispartof | Physics of the solid state, 2018-09, Vol.60 (9), p.1733-1736 |
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| source | SpringerNature Journals |
| subjects | ANISOTROPY Coercivity Crystallites CRYSTALLOGRAPHY CRYSTALS EXCHANGE INTERACTIONS Ferromagnetism FLUCTUATIONS Magnetism NANOSCIENCE AND NANOTECHNOLOGY NANOSTRUCTURES PHASE DIAGRAMS Physics Physics and Astronomy Solid State Physics Variations |
| title | The Imry–Ma Phase in a Nanocrystalline Ferromagnet |
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