Theory of partial quantum disorder in the stuffed honeycomb Heisenberg antiferromagnet

@article{Seifert2018TheoryOP,
  title={Theory of partial quantum disorder in the stuffed honeycomb Heisenberg antiferromagnet},
  author={Urban F. P. Seifert and Matthias Vojta},
  journal={Physical Review B},
  year={2018}
}
Recent numerical results [Gonzalez $\textit{et al.}$, Phys. Rev. Lett. $\textbf{122}$, 017201 (2019); Shimada $\textit{et al.}$, J. Phys. Conf. Ser. $\textbf{969}$, 012126 (2018)] point to the existence of a partial-disorder ground state for a spin-1/2 antiferromagnet on the stuffed honeycomb lattice, with 2/3 of the local moments ordering in an antiferromagnetic N\'eel pattern, while the remaining 1/3 of the sites display short-range correlations only, akin to a quantum spin liquid. We derive… 

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References

SHOWING 1-10 OF 43 REFERENCES

Fractionalization in an easy-axis Kagome antiferromagnet

We study an antiferromagnetic spin-$1/2$ model with up to third nearest-neighbor couplings on the Kagome lattice in the easy-axis limit, and show that its low-energy dynamics are governed by a

Pyrochlore photons: The U ( 1 ) spin liquid in a S = 1 2 three-dimensional frustrated magnet

We study the $S=1/2$ Heisenberg antiferromagnet on the pyrochlore lattice in the limit of strong easy-axis exchange anisotropy. We find, using only standard techniques of degenerate perturbation

Spin waves in a triangular lattice antiferromagnet: Decays, spectrum renormalization, and singularities

We present a comprehensive study of the dynamical properties of the quantum Heisenberg antiferromagnet on a triangular lattice within the framework of spin-wave theory. The distinct features of

Infinitely Many Commensurate Phases in a Simple Ising Model

On the basis of systematic low-temperature expansions "to all orders", it is shown that an infinite sequence of spatially modulated commensurate phases, with wave vectors

Emergent orbitals in the cluster Mott insulator on a breathing kagome lattice

Motivated by the recent developments on cluster Mott insulating materials such as the cluster magnet LiZn$_2$Mo$_3$O$_8$, we consider the strong plaquette charge ordered regime of the extended

Periodic Striped Ground States in Ising Models with Competing Interactions

We consider Ising models in two and three dimensions, with short range ferromagnetic and long range, power-law decaying, antiferromagnetic interactions. We let J be the ratio between the strength of

Magnetic Ordering in a Partially Frustrated Triangular Antiferromagnet RbFeBr 3

Specific heat of quasi-one-dimensional RbFeBr 3 has been measured in the temperature range 1.1∼10 K in applied magnetic fields. Two anomalies with slight field dependences have been found at T N

Ashkin-teller criticality and pseudo-first-order behavior in a frustrated Ising model on the square lattice.

We study the challenging thermal phase transition to stripe order in the frustrated square-lattice Ising model with couplings J(1) < 0 (nearest-neighbor, ferromagnetic) and J(2) > 0 (second-neighbor,

Checkerboards, stripes, and corner energies in spin models with competing interactions

We study the zero temperature phase diagram of Ising spin systems in two dimensions in the presence of competing interactions, long range antiferromagnetic and nearest neighbor ferromagnetic of

Classical phase diagram of the stuffed honeycomb lattice

We investigate the classical phase diagram of the stuffed honeycomb Heisenberg lattice, which consists of a honeycomb lattice with a superimposed triangular lattice formed by sites at the center of