Possible stripe phases in the multiple magnetization plateaus in TbB 4 from single-crystal neutron diffraction under pulsed high magnetic fields - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Physical Review B Année : 2022

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

Résumé

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.
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hal-03795428 , version 1 (04-10-2022)

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N. Qureshi, F. Bourdarot, E. Ressouche, W. Knafo, F. Iga, et al.. Possible stripe phases in the multiple magnetization plateaus in TbB 4 from single-crystal neutron diffraction under pulsed high magnetic fields. Physical Review B, 2022, 106 (9), pp.094427. ⟨10.1103/PhysRevB.106.094427⟩. ⟨hal-03795428⟩
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