Magnetization curves and low-temperature thermodynamics of two spin-1/2 Heisenberg edge-shared tetrahedra

A full energy spectrum, magnetization and susceptibility of a spin-1/2 Heisenberg model on two edge-shared tetrahedra are exactly calculated by assuming two different coupling constants. It is shown that a ground state in zero field is either a singlet or a triplet state depending on a relative stre...

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Bibliographic Details
Main Authors: Jozef Strečka, Katarína Karľová
Format: Article
Language:English
Published: AIP Publishing LLC 2018-10-01
Series:AIP Advances
Online Access:http://dx.doi.org/10.1063/1.5042029