Physics – Condensed Matter – Superconductivity
Scientific paper
2005-09-05
Physics
Condensed Matter
Superconductivity
Scientific paper
So far calculations of the spin susceptibility in the superconducting state of cuprates have been performed in the framework of weak-coupling approximations. However, it is known that cuprates belong to Mott-Hubbard doped materials where electron correlations are important. In this paper an analytical expression for the spin susceptibility in the superconducting state of cuprates is derived within the singlet-correlated band model, which takes into account strong correlations. The expression of the spin susceptibility is evaluated using values for the hopping parameters adapted to measurements of the Fermi surface of the materials YBa2Cu3O7 and Bi2Sr2CaCu2O8. We show that the available experimental data which are directly related to the spin susceptibility can be explained consistently within one set of model parameters for each material. These experiments include the magnetic resonance peak observed by inelastic neutron scattering and the temperature dependence of the NMR spin shift, spin-spin and spin-lattice relaxation rates in the superconducting state.
Eremin Ilya
Eremin Mikhail
Mayer Tobias
Meier P. F.
No associations
LandOfFree
Spin dynamics in HTSC cuprates: The singlet--correlated band (or t-J-V) model and its applications 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 Spin dynamics in HTSC cuprates: The singlet--correlated band (or t-J-V) model and its applications, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Spin dynamics in HTSC cuprates: The singlet--correlated band (or t-J-V) model and its applications will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-379020