45 citations · 176 across the 7 of their papers we have counts for
7 papers
Confinement, reduced entanglement, and spin-glass order in a random quantum spin-ice model
Anirudha Menon, Tom Pardini, Rajiv R. P. Singh
We study an effective spin model derived perturbatively from random transverse-field Ising model on the pyrochlore lattice. The model consists of spin-configurations on the pyrochl…
Magnetic excitations and electronic interactions in SrCuTeO: a spin-1/2 square lattice Heisenberg antiferromagnet
P. Babkevich, Vamshi M. Katukuri, B. Fåk +9
SrCuTeO presents an opportunity for exploring low-dimensional magnetism on a square lattice of Cu ions. We employ ab initio multi-reference configuration int…
Sub-nanometer flattening of a 45-cm long, 45-actuator x-ray deformable mirror
L. A. Poyneer, T. McCarville, T. Pardini +4
We have built a 45-cm long x-ray deformable mirror of super-polished single-crystal silicon that has 45 actuators along the tangential axis. After assembly the surface height error…
Quantum effects in a weakly-frustrated S=1/2 two-dimensional Heisenberg antiferromagnet in an applied magnetic field
N. Tsyrulin, T. Pardini, R. R. P. Singh +7
We have studied the two-dimensional S=1/2 square-lattice antiferromagnet using inelastic neutron scattering and series expansion calculations. We show that the…
Spin correlations near the edge as probe of Dimer order in square-lattice Heisenberg models
T. Pardini, R. R. P. Singh
Recent numerical and analytical work has shown that for the square-lattice Heisenberg model the boundary can induce Dimer correlations near the edge which are absent in spin-wave t…
Spin-stiffness of anisotropic Heisenberg model on square lattice and possible mechanism for pinning of the electronic liquid crystal direction in YBCO
T. Pardini, R. R. P. Singh, A. Katanin +1
Using series expansions and spin-wave theory we calculate the spin-stiffness anisotropy in Heisenberg models on the square lattice with anisotropic couplings $J_x,J…