Exchange anisotropy as mechanism for spin-stripe formation in frustrated spin chains

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-TeVO4. 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.


Published in:
Physical Review B, 94, 8, 081114
Year:
2016
Publisher:
College Pk, Amer Physical Soc
ISSN:
2469-9950
Laboratories:




 Record created 2016-10-18, last modified 2018-03-17


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