286 citations · 901 across the 25 of their papers we have counts for
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cond-mat1998★ 3 cited
Competition of Ferromagnetic and Antiferromagnetic Order in the Spin-1/2 XXZ Chain at Finite Temperature
K. Fabricius, A. Klümper, B. M. McCoy
An analytical study is presented of the crossover in the gapless attractive XXZ chain from antiferromagnetic to ferromagnetic behaviour at low to high temperature, respectively. In…
cond-mat1996★ 33 cited
Exact calculation of thermodynamical quantities of the integrable t-J model
G. Juttner, A. Klumper
The specific heat and the compressibility for the integrable t-J model are calculated showing Luttinger liquid behavior for low temperatures. A Trotter-Suzuki mapping and the quant…
cond-mat1993★ 286 cited
Thermodynamics of the Anisotropic Spin-1/2 Heisenberg Chain and Related Quantum Chains
Andreas Klümper
The free energy and correlation lengths of the spin-1/2 chain are studied at finite temperature. We use the quantum transfer matrix approach and derive non-linear integral eq…