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arXiv · 2312.12001

Evidence for Conical Magnetic Structure in M-type BaFe12O19 Hexaferrite: A Combined Single-Crystal XMCD and Neutron Diffraction Study

Keshav Kumar·Shrawan K. Mishra·Sanjay Singh·Ivan Baev·Michael Martins·Fabio Orlandi·Pascal Manuel·Dhananjai Pandey
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Abstract

The magnetic ground state of BaFe12O19 (BFO) was investigated using X-ray absorption at 1.2 K and 1.5 K, respectively. The XMCD measurements on single-crystals of BFO in grazing incidence geometry reveal the canting of the spins away from the c-axis of the hexagonal unit cell. Single-crystal neutron diffraction studies reveal magnetic satellite peaks along the 00l reciprocal lattice row around the forbidden l = 2n +/- 1 positions confirming conical-type magnetic structure in the ground state of BFO. The observation of the conical magnetic structure of BFO opens the possibility of type-II multiferroicity in undoped BFO also.

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Keshav Kumar, Shrawan K. Mishra, Sanjay Singh, Ivan Baev, Michael Martins, Fabio Orlandi, Pascal Manuel, Dhananjai Pandey. 2023-12-19. Evidence for Conical Magnetic Structure in M-type BaFe12O19 Hexaferrite: A Combined Single-Crystal XMCD and Neutron Diffraction Study. https://doi.org/10.1002/pssr.202000506

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