116 citations · 975 across the 31 of their papers we have counts for
5 papers · 1 filter
Synthesis, floating zone crystal growth and characterization of the Quantum Spin Ice pyrochlore
S. M. Koohpayeh, J. -J. Wen, B. A. Trump +2
Pyrochlore samples in the form of both powders and bulk single crystals have been studied to elucidate the depend…
Low Energy Electrodynamics of Novel Spin Excitations in the Quantum Spin Ice YbTiO
LiDong Pan, Se Kwon Kim, A. Ghosh +7
In condensed matter systems, the formation of long range order (LRO) with broken symmetry is often accompanied by new types of excitations. However, in many magnetic pyrochlore oxi…
Heat capacity anomaly at the quantum critical point of the Transverse Ising Magnet CoNb_2O_6
Tian Liang, S. M. Koohpayeh, J. W. Krizan +3
The transverse Ising magnet Hamiltonian describing the Ising chain in a transverse magnetic field is the archetypal example of a system that undergoes a transition at a quantum cri…
Raman study of magnetic excitations and magneto-elastic coupling in alpha-SrCr2O4
Michael Valentine, Seyed Koohpayeh, Martin Mourigal +8
Using Raman spectroscopy, we investigate the lattice phonons, magnetic excitations, and magneto-elastic coupling in the distorted triangular-lattice Heisenberg antiferromagnet alph…
Correlation between bulk thermodynamic measurements and the low temperature resistance plateau in SmB6
W. A. Phelan, S. M. Koohpayeh, P. Cottingham +4
Topological insulators are materials characterized by dissipationless, spin-polarized surface states resulting from non-trivial band topologies. Recent theoretical models and exper…