Exchange anisotropy as mechanism for spin-stripe formation in frustrated spin chains
| Autor: | Pregelj, M., Zaharko, O., Herak, M., Gomilsek, M., Zorko, A., Chapon, L. C., Bourdarot, F., Berger, H., Arčon, D. |
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| Rok vydání: | 2016 |
| Předmět: | |
| Zdroj: | Phys. Rev. B 94, 081114(R) (2016) |
| Druh dokumentu: | Working Paper |
| DOI: | 10.1103/PhysRevB.94.081114 |
| Popis: | We investigate the spin-stripe mechanism responsible for the peculiar nanometer modulation of the incommensurate magnetic order that emerges between the vector-chiral and the spin-density-wave phase in the frustrated zigzag spin-1/2 chain compound $\beta$-TeVO$_4$. A combination of magnetic-torque, neutron-diffraction and spherical-neutron-polarimetry measurements is employed to determine the complex magnetic structures of all three ordered phases. Based on these results, we develop a simple phenomenological model, which exposes the exchange anisotropy as the key ingredient for the spin-stripe formation in frustrated spin systems. Comment: 4 pages + supplementary material, published version (PRB Rapid Communications) |
| Databáze: | arXiv |
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