Field-induced Spin Liquid-like State in a Magnetic Honeycomb Lattice

ORAL

Abstract

Quantum fluctuations in magnetic lattices can yield a quantum spin liquid (QSL) state, where no long-range order appears even at zero temperature. The variety of mechanisms that can generate the spin liquid state and the more exotic QSL state remain unclear, however. Here, we report a new magnetic honeycomb system, BaCo2(P1-xVx)2O8, in which the spin correlations can be tuned by the disorder, leading to different magnetic behaviors. At low x, the material has a spin glass ground state that appears to be due to coexisting and competing correlations. We have found that an external magnetic field can introduce spin liquid-like behavior for some members of the solid solution, testified by the magnetic and thermodynamic experiments. Our results suggest that structural geometry, chemical disorder and external field may help enhance quantum fluctuations in magnetic honeycomb materials.

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Presenters

  • Ruidan Zhong

    Brookhaven National Lab, Department of Chemistry, Princeton University, Department of Condensed Matter Physics and Materials Science, Brookhaven, Brookhaven National Laboratory, Upton, New York 11973-5000, USA., Brookhaven National Laboratory, Condensed Matter Physics & Materials Science, Brookhaven National Laboratory, Condensed Matter Physics and Materials Science Department, Brookhaven National Laboratory, Brookhaven National Laboratories

Authors

  • Ruidan Zhong

    Brookhaven National Lab, Department of Chemistry, Princeton University, Department of Condensed Matter Physics and Materials Science, Brookhaven, Brookhaven National Laboratory, Upton, New York 11973-5000, USA., Brookhaven National Laboratory, Condensed Matter Physics & Materials Science, Brookhaven National Laboratory, Condensed Matter Physics and Materials Science Department, Brookhaven National Laboratory, Brookhaven National Laboratories

  • Robert Cava

    Department of Chemistry, Princeton University, Princeton University, Chemistry, Princeton U., Chemistry, Princeton University