scholarly journals Long-wavelength behavior of the dynamical spin-resolved local-field factor in a two-dimensional electron liquid

2004 ◽  
Vol 70 (23) ◽  
Author(s):  
Zhixin Qian
Keyword(s):  
Local Field ◽  
Two Dimensional ◽  
Dimensional Electron ◽  
Long Wavelength ◽  
Dynamical Spin ◽  
Local Field Factor

Long wavelength plasmon damping in the two-dimensional electron gas

1993 ◽  
Vol 178 (1-2) ◽  
pp. 186-191 ◽  
Author(s):  
Martina E Bachlechner ◽  
Helga M Böhm ◽  
Andreas Schinner
Keyword(s):  
Electron Gas ◽  
Two Dimensional ◽  
Dimensional Electron ◽  
Two Dimensional Electron Gas ◽  
Long Wavelength ◽  
Dimensional Electron Gas

Exchange-correlation effects on the dynamical spin susceptibility of a homogeneous electron gas

1991 ◽  
Vol 69 (5) ◽  
pp. 573-580 ◽  
Author(s):  
K. L. Liu
Keyword(s):  
Local Field ◽  
Electron Gas ◽  
Spin Susceptibility ◽  
Wave Number ◽  
Large Wave ◽  
Limiting Behavior ◽  
High Frequencies ◽  
Exchange Correlation ◽  
Dynamical Spin ◽  
Local Field Factor

We study the wavevector- and frequency- dependent exchange-correlation local-field factor, [Formula: see text], of the dynamical spin susceptibility, [Formula: see text], of a homogeneous electron gas. For high frequencies we calculate [Formula: see text] diagrammatically to second order in the Coulomb interaction, and consequently find that [Formula: see text] varies as q−2 ω−1/2 for large ω and finite q. We also consider an interpolation formula for [Formula: see text], that yields the exact small- and large- wave-number limits. Making use of these results and the Kramers–Kronig relation, we construct an approximate local-field factor that has the correct limiting behavior for both low and high frequencies.

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