Quantum spin state transitions in spin-1 equilateral triangular lattice antiferromagnet Na${}_2$BaNi(PO${}_4$)${}_2$

Abstract

We have grown single crystals of Na${}_2$BaNi(PO${}_4$)${}_2$, a new spin-1 equilateral triangular lattice antiferromagnet (ETLAF), and performed magnetic susceptibility, specific heat and thermal conductivity measurements at ultralow temperatures. The main results are (i) at zero magnetic field, Na${}_2$BaNi(PO${}_4$)${}_2$ exhibits a magnetic ordering at 430 mK with a weak ferromagnetic moment along the $c$ axis. This suggests a canted 120${}^{\circ }$ spin structure, which is in a plane including the crystallographic $c$ axis due to the existence of an easy-axis anisotropy and ferromagnetically stacked along the $c$ axis; (ii) with increasing field along the $c$ axis, a 1/3 magnetization plateau is observed which means the canted 120${}^{\circ }$ spin structure is transformed to a up up down (UUD) spin structure. With even higher fields, the UUD phase further evolves to possible V and V' phases; (iii) with increasing field along the $a$ axis, the canted 120${}^{\circ }$ spin structure is possibly transformed to a umbrella phase and a V phase. Therefore, Na${}_2$BaNi(PO${}_4$)${}_2$ is a rare example of spin-1 ETLAF with single crystalline form to exhibit easy-axis spin anisotropy and series of quantum spin state transitions.

9 pages, 10 figures, accepted for publication in Phys. Rev. B

References in corpus (57)

• Non-Abelian Anyons and Topological Quantum Computation
• Topological entanglement entropy
• Quantum Spin Liquids
• Quantum Spin Liquid States
• Fractionalized excitations in the spin liquid state of a kagomé lattice antiferromagnet
• A Field Guide to Spin Liquids
• Continuous excitations of the triangular-lattice quantum spin liquid YbMgGaO4
• Evidence for a spinon Fermi surface in a triangular lattice quantum spin liquid candidate
• Gapless quantum spin liquid ground state in the two-dimensional spin-1/2 triangular antiferromagnet YbMgGaO${}_4$
• Experimental Realization of Spin-1/2 Triangular-Lattice Heisenberg Antiferromagnet
• Field-tunable quantum disordered ground state in the triangular lattice antiferromagnet NaYbO${}_2$
• Disorder-Induced Mimicry of a Spin Liquid in YbMgGaO${}_4$
• Magnetization Process and Collective Excitations in the S=1/2 Triangular-Lattice Heisenberg Antiferromagnet Ba3CoSb2O9
• $\mu$SR evidence for the U(1) quantum spin liquid ground state in the triangular antiferromagnet YbMgGaO${}_4$
• Valence Bonds in Random Quantum Magnets: Theory and Application to YbMgGaO4
• Anomalous thermal conductivity and magnetic torque response in the honeycomb magnet $\alpha$-RuCl${}_3$
• Quantum Phase Diagram of the Triangular-Lattice XXZ Model in a Magnetic Field
• Large field-induced gap of Kitaev-Heisenberg paramagnons in $\alpha$-RuCl${}_3$
• NaYbS${}_2$ - a new planar spin-$\frac{1}{2}$ triangular-lattice magnet and putative spin liquid
• Spin-glass ground state in a triangular-lattice compound YbZnGaO${}_4$
• Anisotropic field-induced ordering in the triangular-lattice quantum spin liquid NaYbSe${}_2$
• Spinons and triplons in spatially anisotropic frustrated antiferromagnets
• Topography of Spin Liquids on a Triangular Lattice
• High pressure sequence of Ba_3NiSb_2O_9 structural phases: new $S=1$ quantum spin-liquids based on Ni^{2+}
• Absence of magnetic thermal conductivity in the quantum spin liquid candidate YbMgGaO4
• Static and Dynamical Properties of the Spin-1/2 Equilateral Triangular-Lattice Antiferromagnet Ba${}_3$CoSb${}_2$O${}_9$
• Topological excitations and the dynamic structure factor of spin liquids on the kagome lattice
• Quantum spin liquid ground state in the disorder free triangular lattice NaYbS${}_2$
• The nature of spin excitations in the one-third magnetization plateau phase of Ba${}_3$CoSb${}_2$O${}_9$
• Successive magnetic phase transitions and multiferroicity in Spin-1 triangular lattice antiferromagnet Ba${}_3$NiNb${}_2$O${}_9$
• Spinon Fermi surface spin liquid in a triangular lattice antiferromagnet NaYbSe${}_2$
• Possible itinerant excitations and quantum spin state transitions in the effective spin-1/2 triangular-lattice antiferromagnet Na${}_2$BaCo(PO${}_4$)${}_2$
• Strong quantum fluctuations in a quantum spin liquid candidate with a Co-based triangular lattice
• Field-induced magnetic transition and spin fluctuation in quantum spin liquid candidate CsYbSe${}_2$
• The phase diagram of the antiferromagnetic XXZ model on the triangular lattice
• Quantum phase diagram of the $S=1/2$ triangular-lattice antiferromagnet Ba${}_3$CoSb${}_2$O${}_9$
• Strong quantum interactions prevent quasiparticle decay
• The Spinon Fermi Surface U(1) Spin Liquid in a Spin-Orbit-Coupled Triangular Lattice Mott Insulator YbMgGaO4
• Nearest-neighbor resonating valence bonds in YbMgGaO4
• Hierarchy of exchange interactions in the triangular-lattice spin-liquid YbMgGaO${}_4$
• Fractionalized excitations in the partially magnetized spin liquid candidate YbMgGaO4
• Magnetic Phase Diagram of the S=1/2 Triangular-Lattice Heisenberg Antiferromagnet Ba3CoNb2O9
• High-dimensional fractionalization and spinon deconfinement in pyrochlore antiferromagnets
• Ground-state phase diagram of an anisotropic spin-$1/2$ model on the triangular lattice
• Crystalline Electric-Field Excitations in Quantum Spin Liquids Candidate $NaYbS{e}_2$
• Quantum Magnetization Plateau in Spin-1 Triangular-Lattice Antiferromagnet Ba${}_3$NiSb${}_2$O${}_9$
• Survival of itinerant excitations and quantum spin state transitions in YbMgGaO${}_4$ with chemical disorder
• Detecting spin fractionalization in a spinon Fermi surface spin liquid
• Avoided quasiparticle decay and enhanced excitation continuum in the spin-1/2 near-Heisenberg triangular antiferromagnet Ba3CoSb2O9
• Evidence for a spinon Fermi surface in the triangular S=1 quantum spin liquid Ba${}_3$NiSb${}_2$O${}_9$
• Quantum magnetic properties of the spin-1/2 triangular-lattice antiferromagnet Ba${}_2$La${}_2$CoTe${}_2$O${}_{12}$
• Heat capacity of the quantum magnet TiOCl
• Frustrated quantum critical theory of putative spin-liquid phenomenology in 6H-B-Ba3NiSb2O9
• Low-temperature heat transport of CuFe${}_{1-x}$Ga${}_x$O${}_2$ ($x=$ 0--0.12) single crystals
• Successive phase transitions and quantum magnetization plateau in the spin-1 triangular-lattice antiferromagnet Ba${}_2$La${}_2$NiTe${}_2$O${}_{12}$
• Evolution of magnetic-field-induced ordering in the layered structure quantum Heisenberg triangular-lattice antiferromagnet Ba${}_3$CoSb${}_2$O${}_9$
• Umbrella-coplanar transition in the triangular XXZ model with arbitrary spin

Cited by in corpus (12)

• Giant Magnetocaloric Effect in Spin Supersolid Candidate Na${}_2$BaCo(PO${}_4$)${}_2$
• Thermal Transport of Fractionalized Antiferromagnetic and Field Induced States in the Kitaev Material Na${}_2$Co${}_2$TeO${}_6$
• Bose-Einstein condensation of a two-magnon bound state in a spin-one triangular lattice
• Low-temperature transport properties of intermetallic compound HoAgGe with kagome spin ice state
• Magnetic phase diagram of a 2-dimensional triangular lattice antiferromagnet Na${}_2$BaMn(PO${}_4$)${}_2$
• Structural, magnetic and magnetocaloric properties of triangular-lattice transition-metal phosphates
• Phase diagram of a bilinear-biquadratic spin-1 model on the triangular lattice from density matrix renormalization group simulations
• Possible Observation of Quadrupole Waves in Spin Nematics
• Successive magnetic transitions in the spin-5/2 easy-axis triangular-lattice antiferromagnet Na${}_2$BaMn(PO${}_4$)${}_2$: A neutron diffraction study
• Spin structures and phase diagrams of the spin-$\frac{5}{2}$ triangular-lattice antiferromagnet Na${}_2$BaMn(PO${}_4$)${}_2$ under magnetic field
• Emergent Spin Supersolids in Frustrated Quantum Materials
• Itinerant and topological excitations in a honeycomb spiral spin liquid candidate