Putative spin-nematic phase in BaCdVO(PO${}_4$)${}_2$

Abstract

We report neutron scattering and AC magnetic susceptibility measurements of the 2D spin-1/2 frustrated magnet BaCdVO(PO${}_4$)${}_2$. At temperatures well below $T_{\mathsf{N}}\approx 1K$, we show that only 34 % of the spin moment orders in an up-up-down-down strip structure. Dominant magnetic diffuse scattering and comparison to published $\mu$sr measurements indicates that the remaining 66 % is fluctuating. This demonstrates the presence of strong frustration, associated with competing ferromagnetic and antiferromagnetic interactions, and points to a subtle ordering mechanism driven by magnon interactions. On applying magnetic field, we find that at $T=0.1$ K the magnetic order vanishes at 3.8 T, whereas magnetic saturation is reached only above 4.5 T. We argue that the putative high-field phase is a realization of the long-sought bond-spin-nematic state.

References in corpus (37)

• Nematic order in square lattice frustrated ferromagnets
• Vector chiral and multipolar orders in the spin-1/2 frustrated ferromagnetic chain in magnetic field
• Emergent multipolar spin correlations in a fluctuating spiral - The frustrated ferromagnetic S=1/2 Heisenberg chain in a magnetic field
• Magnon pairing in quantum spin nematic
• Magnetic properties of BaCdVO(PO_4)_2: a strongly frustrated spin-1/2 square lattice close to the quantum critical regime
• Finite temperature properties and frustrated ferromagnetism in a square lattice Heisenberg model
• Multi-magnon bound states in the frustrated ferromagnetic 1D chain
• New high magnetic field phase of the frustrated $S=1/2$ chain compound LiCuVO${}_4$
• Frustrated two dimensional quantum magnets
• Nuclear magnetic resonance signature of the spin-nematic phase in LiCuVO${}_4$ at high magnetic fields
• Waves in the unseen : theory of spin excitations in a quantum spin nematic
• Extension of the spin-1/2 frustrated square lattice model: the case of layered vanadium phosphates
• Exploring the spin-1/2 frustrated square lattice model with high-field magnetization measurements
• Magnetocaloric effect in the frustrated square lattice J1-J2 model
• Octupolar order in the multiple spin exchange model on a triangular lattice
• SU(2) slave-boson formulation of spin nematic states in S=1/2 frustrated ferromagnets
• Magnon BEC and various phases of 3D quantum helimagnets under high magnetic field
• Magnetic behavior of volborthite Cu3V2O7(OH)2(H2O)2 determined by coupled trimers rather than frustrated chains
• Quantum spin ice with frustrated transverse exchange: from pi-flux phase to nematic quantum spin liquid
• Nematic phase and phase separation near saturation field in frustrated ferromagnets
• Ghost in the machine: Theory of inelastic neutron scattering in a field-induced spin-nematic state
• Phase diagram of the spin-1/2 $J_1$-$J_2$-$J_3$ Heisenberg model on the square lattice
• Spin correlations and exchange in square lattice frustrated ferromagnets
• Evidence for a magnetic field-induced unconventional nematic state in the frustrated and anisotropic spin-chain cuprate LiCuSbO${}_4$
• Spin nematic order in multiple-spin exchange models on the triangular lattice
• Projective studies of spin nematics in a quantum frustrated ferromagnet
• The multi-purpose three-axis spectrometer (TAS) MIRA at FRM II
• Fluctuations and correlations in a frustrated S=1/2 square lattice with competing ferromagnetic and antiferromagnetic interactions: a muSR study
• Evidence for unidimensional low-energy excitations as the origin of persistent spin dynamics in geometrically frustrated magnets
• Thermodynamics of a frustrated quantum magnet on a square lattice
• Spectral evidence of a ghostly transition: Theory of NMR 1/T_1 relaxation in a quantum spin nematic in applied magnetic field
• Dynamical spin structure factors of quantum spin nematic states
• Unusual UUDD magnetic chain structure of the spin-1/2 tetragonally distorted spinel GeCu2O4
• Magnetic phase diagram slightly below the saturation field in the stacked $J_1$-$J_2$ model in the square lattice with the $J_{\text{C}}$ interlayer coupling
• Néel temperature and reentrant H-T phase diagram of quasi-2D frustrated magnets
• Dynamics of Bound Magnon Pairs in the Quasi-One-Dimensional Frustrated Magnet LiCuVO_4
• Spin nematic states in antiferromagnets containing ferromagnetic bonds

Cited by in corpus (17)

• Presaturation phase with no dipolar order in a quantum ferro-antiferromagnet
• Understanding Reentrance in Frustrated Magnets: the Case of the Er${}_2$Sn${}_2$O${}_7$ Pyrochlore
• Deformed spin-$\frac{1}{2}$ square lattice in antiferromagnetic NaZnVOPO${}_4$(HPO${}_4$)
• Novel quantum phase of the chromium spinel oxide HgCr${}_2$O${}_4$ in high magnetic fields
• Realising square and diamond lattice $S=1/2$ Heisenberg antiferromagnet models in the $\alpha$ and $\beta$ phases of the coordination framework, KTi(C${}_2$O${}_4$)${}_2\cdot$\textit{x}H${}_2$O
• Inelastic neutron scattering determination of the spin Hamiltonian for BaCdVO(PO${}_4$)${}_2$
• Control of superexchange interactions with DC electric fields
• Abundant quadrupolar or nematic phases driven by the Heisenberg interactions in a spin-1 dimer system forming a bilayer
• Finite temperature thermodynamic properties of the spin-1 nematics in an applied magnetic field
• Possible Observation of Quadrupole Waves in Spin Nematics
• Cascade of magnetic-field-driven quantum phase transitions in Ce3Pd20Si6
• Phase diagram and spin waves in the frustrated ferro-antiferromagnet SrZnVO(PO4)2
• Quasi two-dimensional magnetism in spin-$\frac{1}{2}$ square lattice compound Cu[C${}_6$H${}_2$(COO)${}_4$][H${}_3$N-(CH${}_2$)${}_2$-NH${}_3$]$\cdot$3H${}_2$O
• Spin correlations in the frustrated ferro-antiferromagnet SrZnVO(PO4)2 near saturation
• Dynamics of quantum spin-nematics: Comparisons with canted antiferromagnets
• Quantum magnetism of ferromagnetic spin dimers in $\alpha$-KVOPO${}_4$
• Narrowly avoided spin-nematic phase in BaCdVO(PO${}_4$)${}_2$: NMR evidence