On the Energy Spectrum and Ground-State Properties of the Decorated Heisenberg Spin Tube |
| V.O. Cheranovskiia and E.V. Ezerskayab
aKarazin Kharkov National University, Dept. of Chemistry, 61077, Svoboda sq. 4, Kharkov, Ukraine, bKarazin Kharkov National University, Dept. of Physics, 61077, Svoboda sq. 4, Kharkov, Ukraine |
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| The ground-state properties of decorated Heisenberg spin tubes with nearest- and next-nearest-neighbor antiferromagnetic exchange interactions has been studied using perturbation theory and exact diagonalization technique. The possibility of quantum phase transitions mediated by next-nearest neighbor interactions for these tubes is shown. |
| DOI: 10.12693/APhysPolA.118.946 PACS numbers: 75.10.Jm |