Thermodynamic properties of the $S=1/2$ twisted triangular spin tube

Abstract

Thermodynamic properties of the twisted three-leg spin tube under magnetic field are studied by the finite-$T$ density-matrix renormalization group method. The specific heat, spin, and chiral susceptibilities of the infinite system are calculated for both the original and its low-energy effective models. The obtained results show that the presence of the chirality is observed as a clear peak in the specific heat at low temperature and the contribution of the chirality dominates the low-temperature part of the specific heat as the exchange coupling along the spin tube decreases. The peak structures in the specific heat, spin, and chiral susceptibilities are strongly modified near the quantum phase transition where the critical behaviors of the spin and chirality correlations change. These results confirm that the chirality plays a major role in characteristic low-energy behaviors of the frustrated spin systems.

6 pages, 7 figures

References in corpus (7)

• Magnetic characterization of the frustrated three-leg ladder compound [(CuCl2tachH)3Cl]Cl2
• Frustrated three-leg spin tubes: from spin 1/2 with chirality to spin 3/2
• Ground States of Spin-1/2 Triangular Antiferromagnets in a Magnetic Field
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• Temperature driven crossover phenomena in the correlation lengths of the one-dimensional t-J model
• On calculation of vector spin chirality for zigzag spin chains
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Cited by in corpus (3)

• Magnetic phase diagrams of the spin-$\frac{1}{2}$ Heisenberg model on a kagome-strip chain: Emergence of a Haldane phase
• Quantum order by disorder in Frustrated Spin Nanotubes
• Realization of a triangular spin necklace in a verdazyl-based Ni complex