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A study of spin fluctuations in antiferromagnetic metals described by a nesting-type model

✍ Scribed by Hideo Hasegawa

Publisher
Springer US
Year
1978
Tongue
English
Weight
687 KB
Volume
31
Category
Article
ISSN
0022-2291

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✦ Synopsis

The effect of spin fluctuations in antiferromagnetic metals described by a nesting-type model is studied for paramagnetic states and for commensurate spin-density-wave states by the application of the renormalized spin fluctuation theory to the Rice model as well as to the Shibatani-Motizuki-Nagamiya model. Comparison is made between the spin fluctuation property in the nesting-type model and that in a band-type model; in the latter all the portions of the band are considered to be responsible for the antiferromagnetism. Although the effect of spin fluctuations in the nesting-type model is far less significant than that in the band-type model, this effect does become notable as the nesting between the two bands is made worse.

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