PIRSA:14050016 Conference

DOI10.48660/14050016

Conference/School: 4 Corners Southwest Ontario Condensed Matter Physics Symposium 2014

Lee, Y. (2014). Experimental Sightings of the Quantum Spin Liquid. Perimeter Institute. https://pirsa.org/14050016

Lee, Young. Experimental Sightings of the Quantum Spin Liquid. Perimeter Institute, May. 01, 2014, https://pirsa.org/14050016 

@misc{ pirsa_PIRSA:14050016,
  doi = {10.48660/14050016},
  url = {https://pirsa.org/14050016},
  author = {Lee, Young},
  keywords = {},
  language = {en},
  title = {Experimental Sightings of the Quantum Spin Liquid},
  publisher = {Perimeter Institute},
  year = {2014},
  month = {may},
  note = {PIRSA:14050016 see, \url{https://pirsa.org}}
}

Abstract

New states of matter may be produced if quantum effects and frustration conspire to prevent the ground state from achieving classical order. An example of a new quantum phase is the quantum spin liquid. Such spin liquids cannot be characterized by local order parameters; rather, they are distinctive by their possession of long range quantum entanglement. I will describe recent experimental progress in the quest to study quantum spin liquids in frustrated magnets. The kagome lattice, composed of corner-sharing triangles, is highly frustrated for antiferromagnetic spins. Materials based on the kagome lattice with spin-1/2 are ideal hosts for quantum spin liquid ground states. I will discuss our group’s work which includes single crystal growth, bulk characterization, and neutron scattering measurements of the S=1/2 kagome lattice material ZnCu3(OH)6Cl2 (also known as herbertsmithite). Our inelastic neutron scattering measurements of the spin correlations in a single crystal sample reveal that the excitations are fractionalized, a hallmark signature of spin liquid physics.

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