Semiquantitative theory for high-field low-temperature properties of a distorted diamond spin chain

Abstract

We consider the antiferromagnetic Heisenberg model on a distorted diamond chain and use the localized-magnon picture adapted to a distorted geometry to discuss some of its high-field low-temperature properties. More specifically, in our study we assume that the partition function for a slightly distorted geometry has the same form as for ideal geometry, though with slightly dispersive one-magnon energies. We also discuss the relevance of such a description to azurite.

10 pages, 4 figures; Presented at the 4-th Conference on Statistical Physics: Modern Trends and Applications (July 3-6, 2012 Lviv, Ukraine)

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Cited by in corpus (4)

• Strongly correlated flat-band systems: The route from Heisenberg spins to Hubbard electrons
• Frustrated magnetism of spin-1/2 Heisenberg diamond and octahedral chains as a statistical-mechanical monomer-dimer problem
• Electric field driven flat bands: Enhanced magnetoelectric and electrocaloric effects in frustrated quantum magnets
• Macroscopic degeneracy of ground state in the frustrated Heisenberg diamond chain