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An Application of Pade Approximants to Heisenberg Ferromagnetism and Antiferromagnetism

โœ Scribed by Gammel, J.; Marshall, W.; Morgan, L.


Book ID
120144162
Publisher
The Royal Society
Year
1963
Tongue
English
Weight
553 KB
Volume
275
Category
Article
ISSN
0962-8444

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Application of the thermal boson expansi
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The method of thermal boson expansion [1] is extended to the Heisenberg model with spins S/> 1 and applied to the ferromagnetic insulators EuO and EuS. Taking in the momentum space an adequate cut-off, which is almost independent of the spin, a good guess of the critical temperature is made. The te