Kondo Effect in High-T_c Cuprates

Details Kondo Effect in High-T_c Cuprates Kondo Effect in High-T_c Cuprates

1997-02-12

arxiv.org/abs/cond-mat/9702103v2

Physics

Condensed Matter

REVTEX

Scientific paper

10.1103/PhysRevLett.79.3755

We study the Kondo effect due to the nonmagnetic impurity, e.g., Zn, in high-T_c cuprates based on the spin-change separated state. In the optimal or overdoped case with the Kondo screening, the residual resistivity is dominated by the spinons while the T-dependent part determined by the holons. This gives $\rho(T) = { {4 \hbar} /{e^2}} { { n_{imp.}} /{(1-x)}} + {{\alpha T} / x}$ (x: hole concentration,$n_{imp.}$: impurity concentration, $\alpha$: constant ), which is in agreement with experiments. In the underdoped region with the pseudo spin gap, an SU(2) formulation predicts that the holon phase shift is related to the formation of the local spin moment, and hence the residual resistivity is given by $\rho_{res.} = { {4 \hbar} /{ e^2}} { { n_{imp.}}/{x}} $, which is also consistent with the experiments. The magnetic impurity case, e.g., Ni, is also discussed.

Affiliated with

Also associated with

No associations

Rating

Kondo Effect in High-T_c Cuprates 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 Kondo Effect in High-T_c Cuprates, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Kondo Effect in High-T_c Cuprates will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-297862