Spatial Distribution of Magnetization in the Pyramid-Like Ising Nanoscopic System Interacting with the Substrate |
| L.S. Borkowski and Z. Jacyna-Onyszkiewicz
Quantum Physics Division, Department of Physics A. Mickiewicz University, Umultowska 85, 61-614 Poznań, Poland |
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| Received: 15 07 2007; In final form: 14 11 2007; |
| We study thermodynamic properties of an Ising model of a ferromagnetic nanoscopic pyramid deposited onto a ferromagnetic bulk substrate. The influence of the interaction between the pyramid and the substrateis calculated in terms of the reduced-state (density) operator used for description of thermodynamic properties of nanoscopic systems. The spatial distribution of the magnetization in the nanoscopic pyramid is obtained in the molecular field approximation. |
| PACS numbers: 75.75.+a |