Physics – Condensed Matter – Mesoscale and Nanoscale Physics
Scientific paper
2008-11-06
Phys. Rev. B 79, 115445 (2009)
Physics
Condensed Matter
Mesoscale and Nanoscale Physics
Scientific paper
10.1103/PhysRevB.79.115445
We consider the effect of rescattering of pairs of quasiparticles in the Cooper channel resulting in the strong renormalization of second-order corrections to the spin susceptibility in a two-dimensional electron system. We use the Fourier expansion of the scattering potential in the vicinity of the Fermi surface to find that each harmonic becomes renormalized independently. Since some of those harmonics are negative, the first derivative of the spin susceptibility is bound to be negative at small momenta, in contrast to the lowest order perturbation theory result, which predicts a positive slope. We present in detail an effective method to calculate diagrammatically corrections to the spin susceptibility to infinite order.
Chesi Stefano
Loss Daniel
Simon Pascal
Zak Robert Andrzej
No associations
LandOfFree
Momentum dependence of the spin susceptibility in two dimensions: nonanalytic corrections in the Cooper channel does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Momentum dependence of the spin susceptibility in two dimensions: nonanalytic corrections in the Cooper channel, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Momentum dependence of the spin susceptibility in two dimensions: nonanalytic corrections in the Cooper channel will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-631158