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The Magnetic Properties of Alloys

  • D. M. Edwards
Part of the NATO Advanced Study Institutes Series book series (NSSB, volume 42)

Abstract

Alloys containing transition metals exhibit a very wide range of magnetic behaviour. In these lectures it is necessary to narrow the field and I shall concentrate on ferromagnetic and nearlyferromagnetic alloys, particularly those containing nickel and iron. Thus I shall not discuss dilute alloys with noble metal hosts, such as AuFe or CuMn, and consequently shall only mention the Anderson model in connection with quite a different system and the Kondo effect not at all. Antiferromagnetism and spin-glass behaviour will also receive scant attention. The concentration on ferromagnetic alloys in these lectures is reasonable because it is for these transition metal alloys that the observed magnetic moments have been most closely linked with theoretical work on the electronic structure at T = O. The interpretation of the magnetic properties of pure transition metals at finite temperature is still a matter for debate1 so little will be said about alloys at finite T. However, considerable progress has been made in the calculation of spinwave energies and these collective elementary excitations dominate the low-temperature properties in many cases. Experimental and theoretical work on spin waves in nickel alloys will be discussed and this work throws light on the correct description of the ground state.

Keywords

Spin Wave Random Phase Approximation Local Moment Exchange Splitting Impurity Site 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Plenum Press, New York 1979

Authors and Affiliations

  • D. M. Edwards
    • 1
  1. 1.Department of MathematicsImperial CollegeLondonUK

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