27 citations · 52 across the 4 of their papers we have counts for
9 papers
Entanglement of two delocalised electrons
A. Ramsak, I. Sega, J. H. Jefferson
Several convenient formulae for the entanglement of two indistinguishable delocalised spin-1/2 particles are introduced. This generalizes the standard formula for concurrence, vali…
Magnetic collective mode in underdoped cuprates: a phenomenological analysis
P. Prelovsek, I. Sega
The dynamical spin susceptibility as relevant for underdoped cuprates is analysed within the memory-function (MeF) approach. A phenomenological damping function combined with a …
Spin fluctuations in cuprates as the key to high
P. Prelovsek, I. Sega, A. Ramsak +1
Spin fluctuations represent the lowest established energy scale in cuprates and are crucial for the understanding of anomalous normal state properties and superconductivity in thes…
Dynamic Spin Structure Factor of SrCu2(BO3)2 at Finite Temperatures
S. El Shawish, J. Bonca, I. Sega
Using finite temperature Lanczos technique on finite clusters we calculate dynamical spin structure factor of the quasi-two-dimensional dimer spin liquid SrCu2(BO3)2 as a function…
Electron Spin Resonance of SrCu2(BO3)2 at High Magnetic Field
S. El Shawish, J. Bonca, C. D. Batista +1
We calculate the electron spin resonance (ESR) spectra of the quasi-two-dimensional dimer spin liquid SrCu2(BO3)2 as a function of magnetic field B. Using the standard Lanczos meth…
Magnetic response of nonmagnetic impurities in cuprates
P. Prelovsek, I. Sega
A theory of the local magnetic response of a nonmagnetic impurity in a doped antiferromagnet, as relevant to the normal state in cuprates, is presented. It is based on the assumpti…