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Spontaneous Magnetization of Small Heisenberg System |
SUN Jirong1,2;WEI Yunian1,2;YI Sunsheng2;PU Fuke (Fu-cho pu)2,3 |
1State Key Laboratory for Magnetism, 2Institute of Physics, Academia Sinica, Beijing 100080
3China Center of Advanced Science and Technology (World Laboratory), P. O. Box 8730, Beijing 100080
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Cite this article: |
SUN Jirong, WEI Yunian, YI Sunsheng et al 1994 Chin. Phys. Lett. 11 705-708 |
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Abstract Based upon the spin-wave theory, the influence of the size of a cubic Heisenberg system on the spontaneous magnetization was studied. It was found that the overall influence of finite size has a tendency to promote the excitation of spin-wave if the free boundary condition is applied. A comparison between the calculation and the experimental results was also given.
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Keywords:
75.10.Jm
75.70.Ak
75.30.Ds
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Published: 01 November 1994
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PACS: |
75.10.Jm
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(Quantized spin models, including quantum spin frustration)
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75.70.Ak
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(Magnetic properties of monolayers and thin films)
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75.30.Ds
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(Spin waves)
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Abstract
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