- By:
- Marshall, Madalynn G; Billingsley, Brianna; Bai, Xiaojian ; Ma, Qianli ; Kong, Tai; Cao, Huibo
- Journal Name:
- Nature Communications
- Page Number:
- 3641
- Volume:
- 14
- Issue Number:
- 1
- Publication Date:
- December 27, 2023
- View DOI Listing:
- https://doi.org/10.1038/s41467-023-39409-1
Abstract
A 2-Q antiferromagnetic order of the ferromagnetic dimers was found below TN = 2.9 K in the Shastry-Sutherland lattice BaNd2ZnS5 by single crystal neutron diffraction. The magnetic order can be understood by the orthogonal arrangement of local Ising Nd spins, identified by polarized neutrons. A field was applied along [1 -1 0] to probe the observed metamagnetic transition in the magnetization measurement. The field decouples two magnetic sublattices corresponding to the propagation vectors q1 = (½, ½, 0) and q2 = (−½, ½, 0), respectively. Each sublattice shows a “stripe” order with a Néel-type arrangement in each single layer. The “stripe” order with q1 remains nearly intact up to 6 T, while the other one with q2 is suppressed at a critical field Hc ~1.7 T, indicating a partial disorder. The Hc varies with temperature and is manifested in the H-T phase diagram constructed by measuring the magnetization in BaNd2ZnS5.
