177 citations · 928 across the 29 of their papers we have counts for
5 papers · 1 filter
Topology of three-dimensional Dirac semimetals and generalized quantum spin Hall systems without gapless edge modes
Alexander C. Tyner, Shouvik Sur, Danilo Puggioni +2
Usually the quantum spin Hall states are expected to possess gapless, helical edge modes. Are there clean, non-interacting, quantum spin Hall states without gapless, edge modes? We…
Evidence for an extended critical fluctuation region above the polar ordering transition in LiOsO
Jun-Yi Shan, A. de la Torre, N. J. Laurita +8
Metallic LiOsO undergoes a continuous ferroelectric-like structural phase transition below = 140 K to realize a polar metal. To understand the microscopic interactions th…
Pressure induced collapse of magnetic order in jarosite
Ryan A. Klein, James P. S. Walsh, Samantha M. Clarke +12
We report a pressure-induced phase transition in the frustrated kagomé material jarosite at ~45 GPa, which leads to the disappearance of magnetic order. Using a suite of experiment…
Cooperative Interactions Govern the Fermiology of the Polar Metal CaRuO
D. Puggioni, M. Horio, J. Chang +1
The antiferromagnetic Ruddlesden-Popper ruthenate CaRuO is a model polar metal, combining inversion symmetry breaking with metallic conductivity; however, its low tempe…
Magnetic Order Driven Ultrafast Phase Transition in NdNiO
V. Stoica, D. Puggioni, J. Zhang +12
Ultrashort x-ray pulses can be used to disentangle magnetic and structural dynamics and are accordingly utilized here to study the photoexcitation of NdNiO (NNO), a model nicke…