Colloquium – Renata MM Wentzcovitch

Renata MM Wentzcovitch, Columbia University

Spin crossover in iron in mantle minerals

Pressure and temperature-induced spin-state change in iron in lower mantle minerals is an unusual phenomenon with previously unknown consequences. High-pressure and high-temperature experiments have offered a wealth of new information about this class of materials problems. I will discuss key experimental data, contrast them with ab initio results and thermodynamic models, show the implications for fundamental phenomena taking place at the atomic scale and their macroscopic manifestations, and discuss potential geophysical consequences of this phenomenon.

Oct 24, 2024 @ 4:10pm Central in Stevenson Center 5326; light refreshments available at 3:50pm in Stevenson Center 5326

Host: S Pantelides