244 citations · 3k across the 58 of their papers we have counts for
58 papers
Optical conductivity of tilted higher pseudospin Dirac-Weyl cones
W. Callum Wareham, E. J. Nicol
We investigate the finite-frequency optical response of systems described at low energies by Dirac-Weyl Hamiltonians with higher pseudospin values. In particular, we…
Infrared imaging of samples in ultra high pressure diamond anvil cells
Tarun Patel, A. Drozdov, V. S. Minkov +5
We describe an experimental platform that generates infrared images of micrometer-sized samples in the high pressure region of a diamond anvil cell. Using a 2.3 micron laser as a s…
Optical properties of superconducting pressurized LaH
Sabri Elatresh, T. Timusk, E. J. Nicol
Recently superconductivity has been discovered at around 200~K in a hydrogen sulfide system and around 260~K in a lanthanum hydride system, both under pressures of about 200 GPa. T…
Spectroscopic signatures of phonons in high pressure superconducting hydrides
J. P. Carbotte, E. J. Nicol, T. Timusk
The discovery of superconductivity at 203K in SH is an important step toward higher values of . Predictions based on state-of-the-art DFT for the electronic structure, inc…
Signatures of merging Dirac points in optics and transport
J. P. Carbotte, E. J. Nicol
We consider the optical and transport properties in a model two-dimensional Hamiltonian which describes the merging of two Dirac points. At low energy, in the presence of an energy…
Optical properties of a semi-Dirac material
J. P. Carbotte, K. R. Bryenton, E. J. Nicol
Within a Kubo formalism, we calculate the absorptive part of the dynamic longitudinal conductivity of a 2D semi-Dirac material. In the clean limit, we provide separate analy…