Publications by authors named "Vasilije V Dobrosavljevic"
Article Synopsis
- Seismic and mineralogical studies suggest that regions at Earth's core-mantle boundary may have high concentrations of FeO that behave like metals under extreme conditions of pressure and temperature.
- This research uses advanced theoretical modeling to explore the electronic structure of B1-FeO, revealing that it doesn't undergo a sharp transition to metallic behavior but instead experiences a gradual change influenced by its orbitals.
- The findings indicate that under lower mantle conditions, FeO exists in a unique state where electronic transport shows intermediate properties, helping to explain previously observed low seismic velocities and higher electrical conductivities in Earth's mantle.
The high-pressure melting curve of FeO controls key aspects of Earth's deep interior and the evolution of rocky planets more broadly. However, existing melting studies on wüstite were conducted across a limited pressure range and exhibit substantial disagreement. Here we use an in-situ dual-technique approach that combines a suite of >1000 x-ray diffraction and synchrotron Mössbauer measurements to report the melting curve for FeO wüstite to pressures of Earth's lowermost mantle.
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