تقرير
Probing Iron in Earth's Core With Molecular-Spin Dynamics
| العنوان: | Probing Iron in Earth's Core With Molecular-Spin Dynamics |
|---|---|
| المؤلفون: | Nikolov, Svetoslav, Ramakrishna, Kushal, Rohskopf, Andrew, Lokamani, Mani, Tranchida, Julien, Carpenter, John, Cangi, Attila, Wood, Mitchell A. |
| سنة النشر: | 2023 |
| المجموعة: | Condensed Matter |
| مصطلحات موضوعية: | Condensed Matter - Materials Science |
| الوصف: | Dynamic compression of iron to Earth-core conditions is one of the few ways to gather important elastic and transport properties needed to uncover key mechanisms surrounding the geodynamo effect. Herein a new machine-learned ab-initio derived molecular-spin dynamics (MSD) methodology with explicit treatment for longitudinal spin-fluctuations is utilized to probe the dynamic phase-diagram of iron. This framework uniquely enables an accurate resolution of the phase-transition kinetics and Earth-core elastic properties, as highlighted by compressional wave velocity and adiabatic bulk moduli measurements. In addition, a unique coupling of MSD with time-dependent density functional theory enables gauging electronic transport properties, critically important for resolving geodynamo dynamics. Comment: 3 Figures in main document, 8 Figures in the supplemental information |
| نوع الوثيقة: | Working Paper |
| URL الوصول: | http://arxiv.org/abs/2311.08737 |
| رقم الأكسشن: | edsarx.2311.08737 |
| قاعدة البيانات: | arXiv |
| الوصف غير متاح. |