Anisotropy Stabilized Magnetic Phases of the Triangular Antiferromagnet RbFe(MoO4)2
- Authors: Sakhratov Y.A1,2, Svistov L.E3, Reyes A.P1
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Affiliations:
- National High Magnetic Field Laboratory
- Kazan State Power Engineering University
- Kapitza Institute for Physical Problems, Russian Academy of Sciences
- Issue: Vol 164, No 4 (2023)
- Pages: 607-614
- Section: Articles
- URL: https://journals.rcsi.science/0044-4510/article/view/247334
- DOI: https://doi.org/10.31857/S0044451023100139
- EDN: https://elibrary.ru/XLMEMC
- ID: 247334
Cite item
Abstract
The magnetic H–T phase diagram of a quasi-two-dimensional easy plane antiferromagnet RbFe(MoO4)2 (S = 5/2) with an equilateral triangular lattice structure is studied with 87Rb NMR technique for field directed along hard axis C3. The studies confirm the two step transition from the low field umbrella-like incommensurate magnetic phase to the paramagnetic state observed recently (H. Mitamura et al., J. Magn. Magn. Mater. 400, 70 (2016)). The transitions were identified as a lambda anomaly in the spin-lattice relaxation rate and a step increase of magnetic susceptibility at intermediate transition. The 87Rb NMR study precludes the possibility of either V or fan spin textures in the new high field phase. The additional transition is presumably associated with loss of inter plane magnetic order before the transition to paramagnetic state of individual triangular planes.
About the authors
Yu. A Sakhratov
National High Magnetic Field Laboratory;Kazan State Power Engineering University
Email: svistov@kapitza.ras.ru
32310, Tallahassee, Florida, USA; 420066, Kazan, Russia
L. E Svistov
Kapitza Institute for Physical Problems, Russian Academy of Sciences
Email: svistov@kapitza.ras.ru
119334, Moscow, Russia
A. P Reyes
National High Magnetic Field Laboratory
Author for correspondence.
Email: svistov@kapitza.ras.ru
32310, Tallahassee, Florida, USA
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