Low-Temperature Properties of the Randomly Depleted Heisenberg Ladder

Preprint

24 June 1996

preprint
Published by arXiv in arXiv

https://doi.org/10.48550/arXiv.cond-mat/9606170

Abstract

Low-temperature thermodynamic properties of the spin-1/2 Heisenberg ladder system with non-magnetic impurities are discussed using an effective Hamiltonian for the impurity-induced spins in the background of a spin liquid with a gap. It is shown that the uniform susceptibility shows Curie-like behavior in high-, intermediate-, and low-temperature regimes, with three different Curie constants. The ratio of specific heat to temperature, C/T, is divergent in the low-temperature limit, reflecting a singular distribution of the effective couplings among the impurity spins.

Keywords

THERMODYNAMIC PROPERTIES
TEMPERATURE PROPERTIES
DEPLETED HEISENBERG
HEISENBERG LADDER
RANDOMLY DEPLETED
LOW TEMPERATURE
LADDER LOW

All Related Versions

Version 1, 1996-06-24, ArXiv
Published version: Journal of the Physics Society Japan, 65 (8), 2385.

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