Raman Scattering Investigation of a New Candidate for a Quantum Spin Liquid, the Magnetic Insulator, Ba<sub>3</sub>Ir<sub>4</sub>O<sub>10</sub>
ORAL
Abstract
The insulator Ba3Ir4O10 is a new candidate for a frustrated quantum spin liquid, which was reported to have a stabilized quantum spin liquid state down to 0.2 K. The frustration parameter of around 3800 is extremely high. The spin liquid is also extraordinarily sensitive to changes in the lattice parameters as shown with the effects from strontium doping. The replacement of approximately 2% of barium with strontium readily lifts the frustration parameter and this doped material has long-range order from an antiferromagnetic transition at 130 K. Raman spectroscopy results show that both materials are also strongly anisotropic. We will present a comparison of the results of Raman scattering experiments on Sr-doped and undoped samples of Ba3Ir4O10.
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Presenters
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Aaron Sokolik
University of Colorado, Boulder
Authors
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Aaron Sokolik
University of Colorado, Boulder
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Nick Pellatz
University of Colorado, Boulder, Physics, University of Colorado, Boulder
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Gang Cao
University of Colorado, Boulder, Department of Physics, University of Colorado at Boulder, Physics Department, University of Colorado Boulder, Physics, University of Colorado, Boulder, University of Colorado at Boulder, Physics, University of Colorado Boulder
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Dmitry Reznik
University of Colorado, Boulder, University of Colorado at Boulder, Physics, University of Colorado, Boulder