Effective electron-electron interactions and magnetic phase transition in a two-dimensional electron liquid
Solid State Communications
595 - 599
Item Usage Stats
MetadataShow full item record
We investigate the spin-dependent effective electron-electron interactions in a uniform system of two-dimensional electrons to understand the spontaneous magnetization expected to occur at very low density. For this purpose, we adopt the Kukkonen-Overhauser form for the effective interactions which are built by accurately determined local-field factors describing the charge and spin fluctuations. The critical behavior of the effective interaction for parallel spin electrons allows us to quantitatively locate the transition to the ferromagnetic state at rs ≈ 27. When the finite width effects are approximately taken into account the transition occurs at rs ≈ 30 in agreement with recent quantum Monte Carlo calculations.
KeywordsD. Electron-electron interactions
D. Magnetic phase transition
Monte Carlo methods
Magnetic phase transition
Published Version (Please cite this version)http://dx.doi.org/10.1016/j.ssc.2007.01.004
Showing items related by title, author, creator and subject.
Imaging capability of pseudomorphic high electron mobility transistors, AlGaN/GaN, and Si micro-Hall probes for scanning Hall probe microscopy between 25 and 125 °c Akram, R.; Dede, M.; Oral, A. (American Vacuum Society, 2009)The authors present a comparative study on imaging capabilities of three different micro-Hall probe sensors fabricated from narrow and wide band gap semiconductors for scanning hall probe microscopy at variable temperatures. ...
Nappini S.; Matruglio A.; Naumenko D.; Dal Zilio S.; Lazzarino M.; De Groot F.M.F.; Kocabas C.; Balci O.; Magnano E. (American Chemical Society, 2017)Prussian dyes are characterized by interesting photomagnetic properties due to the photoinduced electron transfer involved in the Fe oxidation and spin state changes. Ferromagnetic Prussian blue (PB) in contact with titanium ...
Dynamical screening effects in hot-electron scattering from electron-hole plasma and LO-phonon modes in quantum wires Bennett, C. R.; Tanatar, Bilal; Constantinou, N. C. (Elsevier, 1996)We present a fully dynamical and finite temperature study of the hot-electron momentum relaxation rate and the power loss in a coupled system of electron-hole plasma and bulk LO-phonons in a quantum wire structure. ...