One-dimensional free-electron spin susceptibility at finite temperature

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The analytical expression of the free-electron spin susceptibilities chi(q) and chi(r) in one dimension are derived at finite temperature, where the Sommerfeld expansion is not applicable near q=2k(F), by a series expansion method which does not require the restriction of the Sommerfeld method. The main results are (i) the oscillation of the range function decays exponentially as exp(-pi k(F)rk(B)T/epsilon(F)) in the long-range limit and (ii) the logarithmic divergence of chi(q) at q=2k(F) near T=0 is in the form of [N(0)mu(B)(2)/2]ln(4 epsilon(F)/pi k(B)T).
Publisher
AMERICAN PHYSICAL SOC
Issue Date
1996-09
Language
English
Article Type
Article
Keywords

KASUYA-YOSIDA INTERACTION; DISORDERED METALS

Citation

PHYSICAL REVIEW B, v.54, no.9, pp.6077 - 6080

ISSN
0163-1829
URI
http://hdl.handle.net/10203/74187
Appears in Collection
CH-Journal Papers(저널논문)PH-Journal Papers(저널논문)
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