Easy-Axis Kagomé Antiferromagnet: Local-Probe Study of Nd${}_3$Ga${}_5$SiO${}_{14}$

Abstract

We report a local-probe investigation of the magnetically anisotropic kagomé compound Nd${}_3$Ga${}_5$SiO${}_{14}$. Our zero-field $\mu$SR results provide a direct evidence of a fluctuating collective paramagnetic state down to 60 mK, supported by a wipe-out of the Ga nuclear magnetic resonance (NMR) signal below 25 K. At 60 mK a dynamics crossover to a much more static state is observed by $\mu$SR in magnetic fields above 0.5 T. Accordingly, the NMR signal is recovered at low $T$ above a threshold field, revealing a rapid temperature and field variation of the magnetic fluctuations.

4 pages, 4 figures

References in corpus (4)

• Quantum magnetism in the paratacamite family: towards an ideal kagome lattice
• Direct evidence for a dynamical ground state in the highly frustrated Tb${}_2$Sn${}_2$O${}_7$ pyrochlore
• $\mu$SR study of the quantum dynamics in the frustrated $S=3/2$ kagome bilayers
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• Paramagnetic ground state with field-induced partial order in Nd_3Ga_5SiO_{14} probed by low-temperature heat transport
• Calculation of the Expected Zero Field Muon Relaxation Rate in the Geometrically Frustrated Rare Earth Pyrochlore Gd2Sn2O7 Antiferromagnet
• Dynamic Spin Fluctuations in the Frustrated Spin Chain Compound Li${}_3$Cu${}_2$SbO${}_6$
• Local evidence for collective spin excitations in the distorted kagome antiferromagnet Pr${}_3$BWO${}_9$
• Magnetic properties and field-induced phenomena in the Jeff = 1/2 distorted kagome antiferromagnet
• The effect of local distortions on magnetic and magnetoelectric properties of paramagnetic Pr3Ga5SiO14 langasite
• Resolving the local distortions of Ising-like moments in magnetoelectric Ho-doped langasite