Centre for the
Physics of
Materials

The Siwick and  Cooke groups show the combination of  ultrafast electron diffraction and time-resolved THz specroscopy provides deep insight into the photo-induced insulator to metal transition of the quintessential correlated electron material, VO2.
Published in Proc. Nat. Acad. Sci.

The Siwick group in collaboration with Mark Sutton demonstrates ultrafast electron scattering analyzing the diffuse signal can measure phonon occupancy dynamics over the entire Brillouin zone for the first time.
Published in Physical Review B

The Guo group introduces the idea of topological heteronanotubes (THTs) for realizing a one-dimensional (1D) topological material platform.
Published in Nano Letters

The Cooke group shows ultrafast THz spectroscopy can be used to directly probe the formation of polarons in the lead halide perovskites by sensing the internal motion of the quasiparticle.
Published in Science Advances

The Reisner and Grutter groups show atomic force microscopy can be used to drill ultra-tiny holes in dielectric membranes.
Published in Small Methods

Guo group: Schematic (a and b) and energy diagram (c) of Sn NP/GaN NW/Si for photoelectrochemical CO2 reduction with H2O to formic acid. In this work, we report a unique GaN:Sn nanoarchitecture integrated on planar silicon presenting an energetically favorable reaction path for selective aqueous photoelectrochemical reduction of CO2 to formic acid with high efficiency at low overpotential.
Published in Energy and Environmental Science

The Grutter and Bevan groups combine experiment and theory to develop a better understanding of energy barriers for ionic transport in the important battery material LiFePO4.
Published in Nano Letters