Correlations in doped Antiferromagnets

Details Correlations in doped Antiferromagnets Correlations in doped Antiferromagnets

2000-01-02

arxiv.org/abs/cond-mat/0001007v1

Physics

Condensed Matter

Strongly Correlated Electrons

22 pages, 16 figures

Scientific paper

10.1103/PhysRevB.62.324

A comprehensive study of doped RVB states is performed. It reveals a fundamental connection between superconductivity and quantum spin fluctuations in underdoped cuprates : {\em Cooper pair hopping} strongly reduces the local magnetization $m_0$. This effect pertains to recent muon spin rotation measurements in which $m_0$ varies weakly with hole doping in the poorly conducting regime, but drops precipitously above the onset of superconductivity. Gutzwiller mean field Approximation (GA) is found to agree with numerical Monte Carlo calculation. GA shows for example that for a bond amplitude $u(r)=e^{-r/\xi}$, spin spin correlations decay exponentially with a correlation length $\propto e^{3\pi \xi^2/2}$. Expectation value of the Heisenberg model is found to be correlated with average loop density.

Affiliated with

Also associated with

No associations

Rating

Correlations in doped Antiferromagnets 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 Correlations in doped Antiferromagnets, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Correlations in doped Antiferromagnets will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-525935