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Current issue   Ukr. J. Phys. 2015, Vol. 59, N 12, p.1243-1250
https://doi.org/10.15407/ujpe60.12.1243    Paper

Krupnitska O.M.

Institute for Condensed Matter Physics, Nat. Acad. of Sci. of Ukraine
(1, Svientsitski Str., Lviv 79011, Ukraine; e-mail: krupnitska@icmp.lviv.ua)

Influence of the Heisenberg Exchange Interaction Anisotropy on the Magnetization Process of a Frustrated Diamond Chain in a Strong Magnetic Field

Section: General problems of theoretical physics
Original Author's Text: Ukrainian

Abstract: A frustrated diamond spin chain in a z- or x-aligned external magnetic field has been considered in the framework of the spin-½ antiferromagnetic XXZ Heisenberg model. The magnetization process of the frustrated diamond spin chain is analyzed, by using the effective models found in the strong-coupling approximation in the case where the Heisenberg interaction anisotropy parameter ∆ > 1. The theory is applied to explain experimental data for natural mineral azurite, Cu3(CO3)2(OH)2.

Key words:quantum Heisenberg antiferromagnet, frustrated diamond chain, azurite.

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