Hostname: page-component-cd9895bd7-hc48f Total loading time: 0 Render date: 2024-12-28T14:11:57.335Z Has data issue: false hasContentIssue false
  • English
  • Français

Collective electron assemblies in a metal with overlapping energy bands

Part II. The occurrence of ferromagnetism

Published online by Cambridge University Press:  24 October 2008

William Band
William Band
Affiliation:
Department of PhysicsYenching UniversityPeiping, China
Get access Rights & Permissions [Opens in a new window]

Extract

In Part I of this series it was shown that in a metal with overlapping energy bands, one of which is nearly full and the other nearly empty, there exists a critical temperature below which spontaneous magnetization will be present, Tc being given approximately by the equations

where kθ is the exchange energy term postulated by Stoner, b is the ratio of excess vacancies in the d-band to the maximum possible number of parallel spins, and ζd0 is the equivalent energy depth of the vacant levels in the d-band.

Type
Research Article
Information
Mathematical Proceedings of the Cambridge Philosophical Society , Volume 42 , Issue 2 , June 1946 , pp. 144 - 155
Copyright
Copyright © Cambridge Philosophical Society 1946

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

(1)Fowler, and Guggenheim, . Statistical thermodynamics (Cambridge, 1939), §§ 1447, 1448.Google Scholar
(2)Ref. (1), p. 474, Table 1.Google Scholar
(3)Wilson, A. H.Semi-conductors and metals (Cambridge, 1939), p. 81.Google Scholar