Possible stripe phases in the multiple magnetization plateaus in TbB 4 from single-crystal neutron diffraction under pulsed high magnetic fields

We present a single-crystal neutron diffraction study on the Shastry-Sutherland lattice system TbB4 at zero magnetic field and under pulsed high magnetic fields up to 35 T applied along the crystallographic c axis. While our results confirm the magnetic structures at zero field as well as those at t...

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Bibliographic Details
Published in:Physical review. B 2022-09, Vol.106 (9), Article 094427
Main Authors: Qureshi, N., Bourdarot, F., Ressouche, E., Knafo, W., Iga, F., Michimura, S., Regnault, L.-P., Duc, F.
Format: Article
Language:English
Subjects:
Condensed Matter
Physics
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Summary:We present a single-crystal neutron diffraction study on the Shastry-Sutherland lattice system TbB4 at zero magnetic field and under pulsed high magnetic fields up to 35 T applied along the crystallographic c axis. While our results confirm the magnetic structures at zero field as well as those at the half- and full-magnetization plateaus, they offer insight into the 2/9- and 1/3-magnetization plateaus observed in this system. A stripe model of polarized 4-spin plaquettes whose stripe density proportionally increases with the macroscopic magnetization is in full agreement with the neutron diffraction data. Equally well-suited alternative models exist which explain the observed Bragg peaks being inherently limited in a pulsed high magnetic field experiment. We discuss the different intensity distributions in Q space which can be used to distinguish these models in future experiments.
ISSN:2469-9950
2469-9969
DOI:10.1103/PhysRevB.106.094427