Frustrated spin model as a hard-sphere liquid.

Electron energy spectrum of the spin-liquid state in a frustrated Hubbard model

Frustrated quantum critical theory of putative spin-liquid phenomenology in 6H-B-Ba(3)NiSb(2)O(9).

A recently discovered material, 6H-B-Ba(3)NiSb(2)O(9) was found to display unusual low-temperature phenomenology, interpreted as a quantum spin liquid with spin S=1 on a triangular lattice. We study a spin S=1 exchange model on an AB stacked triangular lattice near its quantum paramagnet-to-spiral transition, driven by easy-plane single-ion anisotropy. We demonstrate that the frustrated inter- ...

Entropy-vanishing transition and glassy dynamics in frustrated spins.

In an effort to understand the glass transition, the dynamics of a nonrandomly frustrated spin model has been analyzed. The phenomenology of the spin model is similar to that of a supercooled liquid undergoing the glass transition. The slow dynamics can be associated with the presence of extended stringlike structures which demarcate regions of fast spin flips. An entropy-vanishing transition, ...

Spin glass behavior upon diluting frustrated magnets and spin liquids: a Bethe-Peierls treatment

A Bethe-Peierls treatment to dilution in short range frustrated magnets and spin liquids is given. The ferromagnetic bonds of a Cayley tree are diluted and a next nearest neighbor antiferromagnetic coupling is added by completing the triangles in a Husimi cactus fashion. A spin glass phase is present at low temperatures and close to the percolation point as soon as frustration is switched on in...

A continuum of compass spinmodels on the honeycomb lattice

Quantum spinmodels with spatially dependent interactions, known as compassmodels, play an important role in the study of frustrated quantummagnetism.One example is theKitaevmodel on the honeycomb lattice with spin-liquid (SL) ground states and anyonic excitations. Another example is the geometrically frustrated quantum120°model on the same lattice whose ground state has not been unambiguously e...