Nuclear Spin Relaxation in Hole Doped Two-Leg Ladders

Details Nuclear Spin Relaxation in Hole Doped Two-Leg Ladders Nuclear Spin Relaxation in Hole Doped Two-Leg Ladders

2000-04-26

arxiv.org/abs/cond-mat/0004433v1

Physics

Condensed Matter

Strongly Correlated Electrons

4 pages. to appear in J. Phys. Soc. Jpn. Vol. 69

Scientific paper

10.1143/JPSJ.69.1610

The nuclear spin-lattice relaxation rate ($1/T_{1}$) has been measured in the single crystals of hole doped two-leg ladder compounds Sr$_{14-x}$Ca$_{x}$Cu$_{24}$O$_{41}$ and in the undoped parent material La$_6$Ca$_8$Cu$_{24}$O$_{41}$. Comparison of $1/T_{1}$ at the Cu and the two distinct oxygen sites revealed that the major spectral weight of low frequency spin fluctuations is located near $q \sim (\pi, \pi)$ for most of the temperature and doping ranges investigated. Remarkable difference in the temperature dependence of $1/T_1$ for the two oxygen sites in the heavily doped $x$=12 sample revealed reduction of singlet correlations between two legs in place of growing antiferromagnetic correlations along the leg direction with increasing temperature. Such behavior is most likely caused by the dissociation of bound hole pairs.

Affiliated with

Also associated with

No associations

Rating

Nuclear Spin Relaxation in Hole Doped Two-Leg Ladders 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 Nuclear Spin Relaxation in Hole Doped Two-Leg Ladders, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Nuclear Spin Relaxation in Hole Doped Two-Leg Ladders will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-42918