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A BETHE-LATTICE APPROACH TO THE SPIN WAVE EXCITATIONS NEAR THE INTERFACE OF TWO FERROMAGNETIC INSULATORS |
| WANG Xiaofei;LIN Zonghan(Tsung-han Lin ) |
| Department of Physics, Peking University, Beijing |
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| Cite this article: |
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WANG Xiaofei, LIN Zonghan(Tsung-han Lin ) 1987 Chin. Phys. Lett. 4 29-32 |
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Abstract The property of spin wave spectra near the interface of two ferromagnetic insulators is studied. Starting from Heisenberg model and using Bethe -lattice approximation and Green's function technique, the local density of magnon states (LDOMS) is calculated for different parameters. A gap in the LDOMS is found in certain parameter region.
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Published: 01 January 1987
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