Abnormal Elasticity of Single-Crystal Magnesiosiderite across the Spin Transition in Earth's Lower Mantle

• Published in: Physical review letters Vol. 118; no. 3; p. 036402
• Main Authors: Fu, Suyu, Yang, Jing, Lin, Jung-Fu
• Format: Journal Article
• Language: English
• Published: United States 20.01.2017

Brillouin light scattering and impulsive stimulated light scattering have been used to determine the full elastic constants of magnesiosiderite [(Mg_{0.35}Fe_{0.65})CO_{3}] up to 70 GPa at room temperature in a diamond-anvil cell. Drastic softening in C_{11}, C_{33}, C_{12}, and C_{13} elastic modul...