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Local field correction effect on inelastic Coulomb scattering lifetime of two-dimensional quasiparticles at low temperatures

机译:局部场校正对二维准粒子在低温下非弹性库仑散射寿命的影响

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摘要

We have investigated the effect of local field correction on the inelastic Coulomb scattering lifetime of high mobility quasiparticles in a quantum layer at low temperatures. By replacing temperature-dependent dynamic dielectric function for the zero-temperature one in calculations, we have considered our improved zero-temperature STLS local field correction for low temperatures in lifetime calculations and compared the results with those obtained from the RPA and Hubbard approximation. It has been found that the quasiparticle lifetime decreases by including the STLS local field factor in all temperatures, energies and layer thicknesses.
机译:我们已经研究了局部场校正对低温下量子层中高迁移率准粒子的非弹性库仑散射寿命的影响。通过在计算中将温度相关的动态介电函数替换为零温度函数,我们在寿命计算中考虑了针对低温的改进的零温度STLS局部场校正,并将结果与​​RPA和Hubbard近似得到的结果进行了比较。已经发现,通过在所有温度,能量和层厚度中包括STLS局部场因子,准粒子寿命会降低。

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