Computer simulations of Jupiter's deep internal dynamics help interpret what Juno sees.

We describe computer simulations of thermal convection and magnetic field generation in Jupiter's deep interior: that is, its convective dynamo. Results from three different simulations highlight the importance of including the dynamics in the very deep interior, although much of the convection and field generation seems to be confined to the upper part of the interior. A long-debated question is to what depth do Jupiter's zonal winds extend below its surface.

Origin of the bismuth-induced decohesion of nickel and copper grain boundaries.

Ductile metals such as Ni and Cu can become brittle when certain impurities (e.g., Bi) diffuse and segregate into their grain boundaries (GBs).

Origin of anomalous strain effects on the molecular adsorption on boron-doped graphene.

When compressive strain is applied to a single-layered material, the layer generally ripples along the third dimension to release the strain energy. In contrast, such a rippling effect is not favored when it is under tensile strain. Here, using first-principles density-functional calculations, we show that molecular adsorption on boron-doped graphene (BG) can be largely tuned by exploiting the rippling effect of the strained graphene.

Atomically abrupt liquid-oxide interface stabilized by self-regulated interfacial defects: the case of Al/Al2O3 interfaces.

The atomic and electronic structures of the liquid Al/(0001) α-Al(2)O(3) interfaces are investigated by first-principles molecular dynamics simulations. Surprisingly, the formed liquid-solid interface is always atomically abrupt and is characterized by a transitional Al layer that contains a fixed concentration of Al vacancies (~10 at.%).