Classical Spin Liquid State in the $S=\frac{5}{2}$ Heisenberg Kagomé Antiferromagnet Li${}_9$Fe${}_3$(P${}_2$O${}_7$)${}_3$(PO${}_4$)${}_2$

Abstract

We investigate the low temperature magnetic properties of a $S=\frac{5}{2}$ Heisenberg kagomé antiferromagnet, the layered monodiphosphate Li${}_9$Fe${}_3$(P${}_2$O${}_7$)${}_3$(PO${}_4$)${}_2$, using magnetization measurements and ${}^{31}$P nuclear magnetic resonance. An antiferromagnetic-type order sets in at $T_{\mathrm{N}}=1.3$ K and a characteristic magnetization plateau is observed at 1/3 of the saturation magnetization below $T^{\ast }\sim 5$ K. A moderate ${}^{31}$P NMR line broadening reveals the development of anisotropic short-range correlations within the plateau phase concomitantly with a gapless spin-lattice relaxation time $T_1\sim k_{B}T/\hslash S$, which both point to the presence of a semiclassical nematic spin liquid state predicted for the Heisenberg kagomé antiferromagnetic model or to the persistence of the zero-energy modes of the kagome lattice under large magnetic fields.

arXiv comment6 pages, 5 figures

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Cited by in corpus (12)

• The observation of quantum fluctuations in a kagome Heisenberg antiferromagnet
• Magnetic phase diagram of the breathing-kagome antiferromagnet Nd${}_3$BWO${}_9$
• Large magnetocaloric effect in the kagome ferromagnet Li${}_9$Cr${}_3$(P${}_2$O${}_7$)${}_3$(PO${}_4$)${}_2$
• Frustration on a centred pyrochlore lattice in metal-organic frameworks
• Magnetism and field-induced effects in the S = 5/2 honeycomb lattice antiferromagnet FeP3SiO11
• Study of Staggered Magnetization in the Spin-$S$ Square-Lattice Heisenberg Model Using Spiral Boundary Conditions
• A frustrated antipolar phase analogous to classical spin liquids
• Coexistence of anomalous spin dynamics and weak magnetic order in a chiral trillium lattice K2FeSn(PO4)3
• Survival of magnetic correlations above ordering temperature in a ferromagnetically ordered classical kagomé magnet: Li9Cr3(P2O7)3(PO4)2
• Magnetic excitations in the 1/3 plateau state in InCu${}_3$(OH)${}_6$Cl${}_3$
• Spiral spin liquid resilient to quantization in the frustrated honeycomb antiferromagnet GdZnPO
• Robust semiclassical magnetization plateau in the kagome lattice