Abstract PETRA III at DESY is one of the brightest synchrotron radiation sources worldwide.
It serves a broad international multidisciplinary user community from academia to industry at …

We conducted in situ high‐pressure and‐temperature X‐ray diffraction measurements of a
pyrolitic mantle material up to 4480 K at 122–166 GPa in a laser‐heated diamond anvil cell …

The bridgmanite (Bgm) to silicate post-perovskite (PPv) phase transition is believed to be the
main cause for the distinct seismic features observed in the D''layer, the lowermost region of …

We present a synthesis of results from seismic and mineral physics studies of the D ″layer
to improve constraints on Earth's lowermost mantle. We focus on structures of two length …

The x-ray free electron laser (XFEL) enables probing a highly compressed material
response at the subnanosecond timescale. We exploit the ultrafast XFEL pulse to combine …

In his Principia of 1687, Sir Isaac Newton calculated the average density of the Earth based
on planetary orbits and the force of gravity. He demonstrated that the rocks in the Earth's …

The effects of reaction kinetics of bridgmanite and ferropericlase transforming to ringwoodite
on elastic properties in upwelling mantle are investigated using data of kinetic experiments …

The primary phase of the Earth's lower mantle,(Al, Fe)‐bearing bridgmanite, transitions to
the post‐perovskite (PPv) phase at Earth's deep mantle conditions. Despite extensive …

The extreme pressures achievable with dynamic compression holds great promise for
studying planetary interiors. Phase stability of Fe-Si alloys, which are complex to address, is …