Quantum spin liquids are an exciting playground for exotic physical phenomena and
emergent many-body quantum states. The realization and discovery of quantum spin liquid …

Finding new collective electronic states in materials is one of the fundamental goals of
condensed matter physics. Atomic-scale superlattices formed from transition metal oxides …

A second-order topological insulator in d dimensions is an insulator which has no d-1
dimensional topological boundary states but has d-2 dimensional topological boundary …

Following the early prediction of the skyrmion lattice (SkL)—a periodic array of spin vortices—
it has been observed recently in various magnetic crystals mostly with chiral structure …

Recently, realizations of Kitaev physics have been sought in the A 2 IrO 3 family of
honeycomb iridates, originating from oxygen-mediated exchange through edge-shared …

We study the exchange interactions and resulting magnetic phases in the honeycomb
cobaltates. For a broad range of trigonal crystal fields acting on Co 2+ ions, the low-energy …

Frustrated quantum magnets not only provide exotic ground states and unusual magnetic
structures, but also support unconventional excitations in many cases. Using a physically …

We have explored the hidden symmetries of a generic four-parameter nearest-neighbor spin
model, allowed in honeycomb-lattice compounds under trigonal compression. Our method …

The family of magnetic rare-earth pyrochlore oxides R 2 M 2 O 7 plays host to a diverse
array of exotic phenomena, driven by the interplay between geometrical frustration and spin …

Classical models of spin systems traditionally retain only the dipole moments, but a quantum
spin state will frequently have additional structure. Spins of magnitude S have N= 2 S+ 1 …