Studies of Quantum Spin Ladders at T=0 and at High Temperatures by Series Expansions

Details Studies of Quantum Spin Ladders at T=0 and at High Temperatures by Series Expansions Studies of Quantum Spin Ladders at T=0 and at High Temperatures by Series Expansions

1996-02-09

arxiv.org/abs/cond-mat/9602055v1

Physical Review B54, 1009(1996)

Physics

Condensed Matter

RevTeX, 14 figures

Scientific paper

10.1103/PhysRevB.54.1009

We have carried out extensive series studies, at T=0 and at high temperatures, of 2-chain and 3-chain spin-half ladder systems with antiferromagnetic intrachain and both antiferromagnetic and ferromagnetic interchain couplings. Our results confirm the existence of a gap in the 2-chain Heisenberg ladders for all non-zero values of the interchain couplings. Complete dispersion relations for the spin-wave excitations are computed. For 3-chain systems, our results are consistent with a gapless spectrum. We also calculate the uniform magnetic susceptibility and specific heat as a function of temperature. We find that as $T\to 0$, for the 2-chain system the uniform susceptibility goes rapidly to zero, whereas for the 3-chain system it approaches a finite value. These results are compared in detail with previous studies of finite systems.

Affiliated with

Also associated with

No associations

Rating

Studies of Quantum Spin Ladders at T=0 and at High Temperatures by Series Expansions 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 Studies of Quantum Spin Ladders at T=0 and at High Temperatures by Series Expansions, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Studies of Quantum Spin Ladders at T=0 and at High Temperatures by Series Expansions will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-638477