BACKGROUND Years ago, Lev Landau taught us how to think about distinct phases of
matter through an order parameter that characterizes the symmetry-broken state relative to …

Frustration in magnetic materials arising from competing exchange interactions can prevent
the system from adopting long-range magnetic order and can instead lead to a diverse …

Motivated by experimental studies that have found signatures of a quantum spin liquid
phase in organic crystals whose structure is well described by the two-dimensional …

Geometrical frustration, quantum entanglement, and disorder may prevent long-range
ordering of localized spins with strong exchange interactions, resulting in an exotic state of …

The interplay between spin frustration and charge fluctuation gives rise to an exotic quantum
state in the intermediate-interaction regime of the half-filled triangular-lattice Hubbard model …

Quantum spin liquids are highly entangled, disordered magnetic states that are expected to
arise in frustrated Mott insulators and to exhibit exotic fractional excitations such as spinons …

We have grown single crystals of PrMgAl 11 O 19, an ideal triangular-lattice antiferromagnet,
and performed magnetic susceptibility, specific heat, and thermal conductivity …

In the recent years, the thermal Hall transport has risen as an important diagnosis of the
physical properties of the elementary excitations in various quantum materials, especially …

Experiments on quantum materials have uncovered many interesting quantum phases
ranging from superconductivity to a variety of topological quantum matter including the …

A quantum spin liquid (QSL) is an exotic state of matter characterized by quantum
entanglement and the absence of any broken symmetry. A longstanding open problem …