Evidence for spin liquid ground state in SrDy${}_2$O${}_4$ frustrated magnet probed by muSR

Abstract

Muon spin relaxation ($\mu$SR) measurements were carried out on SrDy${}_2$O${}_4$, a frustrated magnet featuring short range magnetic correlations at low temperatures. Zero-field muon spin depolarization measurements demonstrate that fast magnetic fluctuations are present from $T=300$ K down to 20 mK. The coexistence of short range magnetic correlations and fluctuations at $T=20$ mK indicates that SrDy${}_2$O${}_4$ features a spin liquid ground state. Large longitudinal fields affect weakly the muon spin depolarization, also suggesting the presence of fast fluctuations. For a longitudinal field of ${\mu }_{0}H=2$ T, a non-relaxing asymmetry contribution appears below $T=6$ K, indicating considerable slowing down of the magnetic fluctuations as field-induced magnetically-ordered phases are approached.

arXiv comment6 pages, 4 figures, to be published as a proceeding of HFM2016 in Journal of Physics: Conference Series (JPCS)

References in corpus (13)

• Magnetic Monopoles in Spin Ice
• Dirac Strings and Magnetic Monopoles in Spin Ice Dy2Ti2O7
• Signature of magnetic monopole and Dirac string dynamics in spin ice
• Order by disorder and spiral spin liquid in frustrated diamond lattice antiferromagnets
• Muon spin rotation and relaxation in magnetic materials
• Spiral spin-liquid and the emergence of a vortex-like state in MnSc${}_2$S${}_4$
• Magnetoelastic excitations in the pyrochlore spin liquid Tb${}_2$Ti${}_2$O${}_7$
• Evidence for SrHo2O4 and SrDy2O4 as model J1-J2 zig-zag chain materials
• Coexistence of the long-range and short-range magnetic order components in SrEr${}_2$O${}_4$
• Disorder from order among anisotropic next-nearest-neighbor Ising spin chains in SrHo${}_2$O${}_4$
• Magnetic and spectral properties of multi-sublattice oxides SrY2O4:Er3+ and SrEr2O4
• Magnetisation Studies of Geometrically Frustrated Antiferromagnets SrLn2O4, with Ln = Er, Dy and Ho
• Incommensurate antiferromagnetic order in the manifoldly-frustrated SrTb${}_2$O${}_4$ with transition temperature up to 4.28 K

Cited by in corpus (7)

• Experimental signatures of a three-dimensional quantum spin liquid in effective spin-1/2 Ce2Zr2O7 pyrochlore
• Origin of magnetic moments and presence of a resonating valence bond state in Ba${}_2$YIrO${}_6$
• Field dependence of the magnetic correlations of the frustrated magnet SrDy${}_2$O${}_4$
• Coexistence of magnetic fluctuations and long-range orders in the one-dimensional $J_1-J_2$ zigzag chains materials BaDy${}_2$O${}_4$ and BaHo${}_2$O${}_4$
• Magnetic structure and low temperature properties of geometrically frustrated SrNd${}_2$O${}_4$
• Magnetic structures of geometrically frustrated SrGd${}_2$O${}_4$ derived from powder and single-crystal neutron diffraction
• Magnetic properties of the zigzag ladder compound SrTb2O4