62 citations · 199 across the 5 of their papers we have counts for
5 papers
Fermionic spin excitations in two and three-dimensional antiferromagnets
Zhihao Hao, Oleg Tchernyshyov
Spin excitations in an ordered Heisenberg magnet are magnons--bosons with spin 1. That may change when frustration and quantum fluctuations suppress the order and restore the spin-…
Partial order from disorder in a classical pyrochlore antiferromagnet
Gia-Wei Chern, R. Moessner, O. Tchernyshyov
We investigate theoretically the phase diagram of a classical Heisenberg antiferromagnet on the pyrochlore lattice perturbed by a weak second-neighbor interaction J_2. The huge gro…
Wrinkling of a bilayer membrane
A. Concha, J. W. McIver, P. Mellado +3
The buckling of elastic bodies is a common phenomenon in the mechanics of solids. Wrinkling of membranes can often be interpreted as buckling under constraints that prohibit large…
Field-driven phase transitions in a quasi-two-dimensional quantum antiferromagnet
M. B. Stone, C. Broholm, D. H. Reich +4
We report magnetic susceptibility, specific heat, and neutron scattering measurements as a function of applied magnetic field and temperature to characterize the quasi-two-…
Broken parity and a chiral ground state in the frustrated magnet CdCr2O4
Gia-Wei Chern, C. J. Fennie, O. Tchernyshyov
We present a model describing the lattice distortion and incommensurate magnetic order in the spinel CdCr2O4, a good realization of the Heisenberg "pyrochlore" antiferromagnet. The…