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arXiv · 1308.6419

Magnetic fan structures in Ba$_{0.5}$Sr$_{1.5}$Zn$_2$Fe$_{12}$O$_{22}$ hexaferrite revealed by resonant soft X-ray diffraction

Alexander J. Hearmon·R. D. Johnson·T. A. W. Beale·S. S. Dhesi·X. Luo·S. -W. Cheong·P. Steadman·Paolo G. Radaelli
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Abstract

The hexaferrites are known to exhibit a wide range of magnetic structures, some of which are connected to important technological applications and display magnetoelectric properties. We present data on the low field magnetic structures stabilised in a Y-type hexaferrite as observed by resonant soft X-ray diffraction. The helical spin block arrangement that is present in zero applied magnetic field becomes fan-like as a field is applied in plane. The propagation vectors associated with each fan structure are studied as a function of field, and a new magnetic phase is reported. Mean field calculations indicate this phase should stabilise close to the boundary of the previously reported phases.

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Alexander J. Hearmon, R. D. Johnson, T. A. W. Beale, S. S. Dhesi, X. Luo, S. -W. Cheong, P. Steadman, Paolo G. Radaelli. 2013-11-21. Magnetic fan structures in Ba$_{0.5}$Sr$_{1.5}$Zn$_2$Fe$_{12}$O$_{22}$ hexaferrite revealed by resonant soft X-ray diffraction. https://doi.org/10.1103/physrevb.88.174413

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