High-frequency damping of plasmons in quasi-one-dimensional electron systems
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1995
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An asymptotic expression for the imaginary part of the dynamic dielectric function 2(k,ω) is studied for model quasi-one-dimensional (Q1D) electron systems. Derived within the two-particle-hole pair excitation approximation, valid for all k and high frequencies, 2(k,ω) is utilized to calculate the plasmon damping in a GaAs Q1D structure. An interpolation formula for the frequency dependence of the dynamic local-field factor G(k,ω) is obtained. © 1995 The American Physical Society.
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Physical Review B
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American Physical Society
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English