4 papers
Emergence of a monopole phase in the Heisenberg model on the triangular lattice for small magnetic fields
Sasank Budaraju, Shi Feng, Josef Willsher +3
The authors use variational Monte Carlo to map the ground‑state phase diagram of the J1‑J2 Heisenberg model on a triangular lattice under small Zeeman fields, revealing a monopole‑…
Triangular - Heisenberg Antiferromagnet in a Magnetic Field
Thomas Bader, Shi Feng, Sasank Budaraju +3
The behavior of the paradigmatic triangular lattice Heisenberg antiferromagnet in a magnetic field remains unsettled despite decades of study. We map out the phase diagra…
Transient localization from fractionalization: vanishingly small heat conductivity in gapless quantum magnets
Shi Feng, Penghao Zhu, Johannes Knolle +1
Several candidate materials for gapless quantum spin liquids exhibit a vanishing thermal conductivity, which is at odds with theoretical predictions. Here, we show that a suppresse…
Finite Spinon Density-of-States in Triangular-Lattice Delafossite TlYbSe
Bishnu P. Belbase, Arjun Unnikrishnan, Shi Feng +3
We introduce the rare-earth delafossite compound TlYbSe -- extending the search for quantum spin liquids in frustrated triangular lattice magnets. While the DC magnetisation su…