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Quantum oscillations in the spin liquid state of a-RuCl3

Date and Time: Tuesday, October 05, 2021, 01:30pm -
Location: Zoom

Speaker: N. P. Ong, (Princeton University

The layered honeycomb magnet a-RuCl3 is the closest known proximate to the Kitaev honeycomb Hamiltonian. Experiments suggest that a quantum spin liquid (QSL) state exists in a magnetic field applied along the a axis (between 7 and 12 T). Using high resolution measurements of the thermal conductivity tensor, we have observed the emergence of large amplitude oscillations in Kxx, with maximal amplitude in the QSL state. I will discuss these results. In addition, I will describe the planar thermal Hall conductivity Kxy focusing on whether it is half-quantized.

Host:  Piers Coleman

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