2003/04/30 by M. W. C. Dharma-wardana, M. W. C Dharma-wardana, François Perrot +1
Physics and Astronomy · #Physics of Superconductivity and Magnetism #Quantum and electron transport phenomena #Quantum, superfluid, helium dynamics #cond-mat.mtrl-sci #cond-mat.stat-mech #cond-mat.str-el
paper · pdf · doi:10.1209/epl/i2003-00593-6
published as Europhys. Lett., 63(5), pp. 660-666 (2003) · 4 pages, 3 figures, version 2 of condmat/0304034, see http://nrcphy1.phy.nrc.ca/ims/qp/chandre/chnc/ Changs in the text, figure 2 and updated references
arxiv created 2003/07/05 · openalex publication_date 2003/09/01 · arxiv updated 2009/11/30 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/30
The static local-field factor (LFF) of the 2D electron fluid is calculated nonperturbatively using a mapping to a classical Coulomb fluid ( Phys. Rev. Lett. , 87 (2001) 206404). The LFF for the paramagnetic fluid differs markedly from perturbation theory where a peak near 2 k F is expected. Our LFF has a quasi-linear small- k region leading to a peak close to 3 k F , in agreement with available quantum Monte Carlo data. The structure in the LFF and its dependence on the density and temperature are interpreted as a signature of correlated scattering of electron pairs of opposite spin. The lack of structure at 2 k F implies weakened Friedel oscillations, Kohn anomalies, etc.