Spin-susceptibility of the quasi–one-dimensional electron gas with long-range Coulomb interaction
Laboratoire de Physique des Solides, Université Paul Sabatier, 118 Route de
Narbonne, 31062 Toulouse, France
Accepted: 9 July 1997
By using an analytical expression for the static-structure factor of the interacting electron gas depending on the spin-polarization parameter ζ, we present a new method to calculate the correlation energy and the spin-susceptibility. For quasi–one-dimensional systems with wire-width parameter b we calculate the spin-susceptibility as a function of b and the Wigner-Seitz parameter , where N is the electron density and a* the effective Bohr radius. We discuss the Bloch instability in quantum wires and describe the spin-susceptibility near the Bloch instability.
PACS: 71.10.Ca – Electron gas, Fermi gas / 71.45.Gm – Exchange, correlation, dielectric and magnetic functions, plasmons / 75.30.Cr – Saturation moments and magnetic susceptibilities
© EDP Sciences, 1997