Mott Transition and Superconductivity in Quantum Spin Liquid Candidate NaYbSe${}_2$

Abstract

The Mott transition is one of the fundamental issues in condensed matter physics, especially in the system with antiferromagnetic long-range order. However the Mott transition in quantum spin liquid (QSL) systems without long-range order is rare. Here we report the observation of the pressure-induced insulator to metal transition followed by the emergence of superconductivity in the QSL candidate NaYbSe2 with triangular lattice of 4f Yb${}_3^{+}$ ions. Detail analysis of transport properties at metallic state shows an evolution from non-Fermi liquid to Fermi liquid behavior when approaching the vicinity of superconductivity. An irreversible structure phase transition occurs around 11 GPa is revealed by the X-ray diffraction. These results shed light on the Mott transition and superconductivity in the QSL systems.

arXiv comment18 pages, 5 figures

References in corpus (30)

• Quantum Spin Liquids
• Quantum Spin Liquid States
• The break up of heavy electrons at a quantum critical point
• Superconducting phases of f-electron compounds
• Gapless quantum spin liquid ground state in the two-dimensional spin-1/2 triangular antiferromagnet YbMgGaO${}_4$
• Mott Transition from a Spin Liquid to a Fermi Liquid in the Spin-Frustrated Organic Conductor kappa-(ET)2Cu2(CN)3
• Pressure induced Superconductivity in Topological Compound Bi2Te3
• Quantum frustration in organic Mott insulators: from spin liquids to unconventional superconductors
• Field-tunable quantum disordered ground state in the triangular lattice antiferromagnet NaYbO${}_2$
• Mott Transition, Antiferromagnetism, and d-wave Superconductivity in Two-Dimensional Organic Conductors
• Rare-earth chalcogenides: A large family of triangular lattice spin liquid candidate
• Pressure induced superconductivity on the border of magnetic order in MnP
• NaYbS${}_2$ - a new planar spin-$\frac{1}{2}$ triangular-lattice magnet and putative spin liquid
• Gapless spin-liquid state in the structurally disorder-free triangular antiferromagnet NaYbO${}_2$
• Anisotropic field-induced ordering in the triangular-lattice quantum spin liquid NaYbSe${}_2$
• Superconductivity in Topological Insulator Sb2Te3 Induced by Pressure
• Gapped spin-1/2 spinon excitations in a new kagome quantum spin liquid compound Cu${}_3$Zn(OH)${}_6$FBr
• Field-induced instability of the quantum-spin-liquid ground state in the $J_{\mathrm{eff}}=\frac{1}{2}$ triangular-lattice compound NaYbO${}_2$
• Pressure-induced dimerization and valence bond crystal formation in the Kitaev-Heisenberg magnet alpha-RuCl3
• Mott transition between a spin-liquid insulator and a metal in three dimensions
• Pressure-Tuned Exchange Coupling of a Quantum Spin Liquid in the Molecular Triangular Lattice $\kappa$-(ET)${}_2$Ag${}_2$(CN)${}_3$
• Anisotropic chiral d+id superconductivity in NaxCoO2 yH2O
• Phase diagram of the Hubbard model on the anisotropic triangular lattice
• Superconductivity in Strong Spin Orbital Coupling Compound Sb2Se3
• Pressure-induced melting of magnetic order and emergence of new quantum state in alpha-RuCl3
• Spin-triplet pairing instability of the spinon Fermi surface in a U(1) spin liquid
• From Claringbullite to a new spin liquid candidate Cu${}_3$Zn(OH)${}_6$FCl
• Anti-doping in Insulators and Semiconductors having Intermediate Bands with Trapped Carriers
• Pressure-driven collapse of the relativistic electronic ground state in a honeycomb iridate
• Insulator-metal transition on the triangular lattice

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• NMR Evidence of Antiferromagnetic Spin Fluctuations in Nd${}_{0.85}$Sr${}_{0.15}$NiO${}_2$
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• Synthesis and Anisotropic Magnetism in Quantum Spin Liquid Candidates $A$YbSe${}_2$ ($A$ = K and Rb)
• Effective Magnetic Hamiltonian at Finite Temperatures for Rare Earth Chalcogenides
• Low-energy Spin Dynamics of Quantum Spin Liquid Candidate $NaYbS{e}_2$
• Magnetic properties of triangular lattice antiferromagnets Ba3RB9O18 (R = Yb, Er)
• Rare-Earth Chalcogenides: An Inspiring Playground For Exploring Frustrated Magnetism
• Mechanism of the insulator-to-metal transition and superconductivity in the spin liquid candidate NaYbSe${}_2$ under pressure
• Exact diagonalization study of the anisotropic Heisenberg model related to YbMgGaO${}_4$
• Insulator-metal-superconductor transition in medium-entropy van der Waals compound MEPSe3 (ME=Fe, Mn, Cd, and In) under high pressures
• Field-induced phase transitions and quantum criticality in a honeycomb antiferromagnet Na3Co2SbO6
• Learning Effective Spin Hamiltonian of Quantum Magnet
• Magnetism of $\mathrm{NaYb}{\mathrm{S}}_2$: From finite temperatures to ground state
• Magnetic order in the $S_{\mathrm{eff}}$ = 1/2 triangular-lattice compound NdCd${}_3$P${}_3$
• Intriguing kagome topological materials
• Is the optical conductivity of heavy fermion strange metals Planckian?
• An emerging global picture of heavy fermion physics