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Quasi-two-dimensional antiferromagnet on a triangular lattice RbFe(MoO4)(2)
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UNSPECIFIED. (2003) Quasi-two-dimensional antiferromagnet on a triangular lattice RbFe(MoO4)(2). PHYSICAL REVIEW B, 67 (9). -. ISSN 1098-0121
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Official URL: http://dx.doi.org/10.1103/PhysRevB.67.094434
Abstract
RbFe(MoO4)(2) is a rare example of a nearly two-dimensional Heisenberg antiferromagnet on a triangular lattice. Magnetic resonance spectra and magnetization curves reveal that the system has a layered spin structure with six magnetic sublattices. The sublattices within a layer are arranged in a triangular manner with the magnetization vectors 120degrees apart. The H-T phase diagram, containing at least five different magnetic phases is constructed. In zero field, RbFe(MoO4)(2) undergoes a phase transition at T-N = 3.8 K into a noncollinear triangular spin structure with all the spins confined in the basal plane. The application of an in-plane magnetic field induces a collinear spin state between the fields H-c1 = 47 kOe and H-c2 = 71 kOe and produces a magnetization plateau at one-third of the saturation moment. Both the ESR and the magnetization measurements also clearly indicate an additional first-order phase transition in a field of 35 kOe. The exact nature of this phase transition is uncertain.
| Item Type: | Journal Article |
|---|---|
| Subjects: | Q Science > QC Physics |
| Journal or Publication Title: | PHYSICAL REVIEW B |
| Publisher: | AMERICAN PHYSICAL SOC |
| ISSN: | 1098-0121 |
| Date: | 1 March 2003 |
| Volume: | 67 |
| Number: | 9 |
| Number of Pages: | 9 |
| Page Range: | - |
| Identification Number: | 10.1103/PhysRevB.67.094434 |
| Publication Status: | Published |
| URI: | http://wrap.warwick.ac.uk/id/eprint/9849 |
Data sourced from Thomson Reuters' Web of Knowledge
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