Shang-Shun Zhang

Comprehensive study of the dynamics of a classical Kitaev Spin Liquid

We study the spin-

Low temperature magnetic structure of CeRhIn5 by neutron diffraction on absorption-optimized samples

S

Spin-orbit interaction driven dimerization in one-dimensional frustrated magnets

Kitaev model in the classical (

Tunable emergent heterostructures in a prototypical correlated metal

S\ensuremath{\rightarrow}\ensuremath{\infty}

Emergent magnetic anisotropy in the cubic heavy-fermion metal CeIn 3

) limit using Monte Carlo simulations combined with semiclassical spin dynamics. We discuss differences and similarities in the dynamical structure factors of the spin-

Principal Chiral Model in Correlated Electron Systems.

1/2

Large magnetic thermal conductivity induced by frustration in low-dimensional quantum magnets.

and the classical Kitaev liquids. The quantum behavior is restricted to low temperatures where a gap protects visons from decohering the system. Once this quantum gap is breached, at low temperatures compared to the coupling constant, significant entropic disorder decoheres the Majorana fermions and the system is described quantitatively by classical dynamics. The low-temperature and low-energy spectrum of the classical model exhibits a finite-energy peak, which is the precursor of the one produced by the Majorana modes of the

Dynamical structure factor of the triangular antiferromagnet: the Schwinger boson theory beyond the mean field approach.

S=1/2

Pairing from strong repulsion in triangular lattice Hubbard model

model. The classical peak is spectrally narrowed compared to the quantum result and can be explained by magnon excitations within fluctuating one-dimensional manifolds (loops). Hence the difference from the classical limit to the quantum limit can be understood by the fractionalization of magnons propagating in one-dimensional manifolds. Moreover, we show that the momentum-space distribution of the low-energy spectral weight of the

Dynamical Structure Factor of Triangular Heisenberg Model

S=1/2