Articles in 2021

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  • Load partitioning to grains during deformation of a polycrystalline material is affected by the presence of twins. Here, synchrotron diffraction is used to study 1300 twin-parent grains, revealing that stress is higher in twins than in the parent grain during the early stages of plastic deformation.

    • Karim Louca
    • Hamidreza Abdolvand
    • Jonathan Wright
    ArticleOpen Access
  • Elemental tellurium is a natural p-type semiconductor with a chiral structure and spin-polarized Fermi surface. Here, the authors show that the pressure-induced topological change of the Fermi surface at 17 kbar triggers an Anderson-Mott insulator-to-metal transition.

    • Jaime F. Oliveira
    • Magda B. Fontes
    • Carsten Enderlein
    ArticleOpen Access
  • Biomass pellets are a promising renewable source of fuel, and are increasingly transported around the globe. Here, it is found that the combined effect of heat and humidity during pellet storage causes inclusion, pore and crack growth, degrading the microstructure.

    • Luis Cutz
    • Urša Tiringer
    • Wiebren de Jong
    ArticleOpen Access
  • The poor environmental stability of lead halide perovskites limits their performance in solar cells. Here, a CuSCN nanoplateletes/p-type semiconducting polymer composite layer enables the stable performance of a solar cell for 28 days in high-moisture conditions, attributed to water splitting.

    • Min Kim
    • Antonio Alfano
    • Francesco Lamberti
    ArticleOpen Access
  • Chiral mechanical metamaterials enable unusual effects, such as coupling between strain and twist. Here, manufactured microstructured samples with >105 chiral unit cells exhibit large characteristic lengths, in agreement with analytical and numerical modelling and micropolar continuum elasticity.

    • Tobias Frenzel
    • Vincent Hahn
    • Martin Wegener
    ArticleOpen Access