Spatial Dependence of Magnetization and Gaussian Fluctuations of Molecular Field in an Ising Nanopyramid Interacting with the Substrate |
| L.S. Borkowski and Z. Jacyna-Onyszkiewicz
Faculty of Physics, A. Mickiewicz University, Umultowska 85, 61-614 Poznań, Poland |
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| We study thermodynamic properties of an Ising model of a ferromagnetic nanoscopic pyramid deposited on a ferromagnetic bulk substrate. The influence of the interaction between the pyramid and the substrate is calculated in terms of the reduced-state (density) operator used for description of thermodynamic properties of nanoscopic systems. The spatial distribution of magnetization in the nanopyramid is obtained in the Gaussian fluctuations approximation. |
| DOI: 10.12693/APhysPolA.115.375 PACS numbers: 75.75.+a |