dorsal/arxiv
View SchemaPhysical Properties of Iron in the Inner Core
| Authors | Gerd Steinle-Neumann, Lars Stixrude, R. E. Cohen |
|---|---|
| Categories | |
| ArXiv ID | physics/0204055 |
| URL | https://arxiv.org/abs/physics/0204055 |
Abstract
The Earth's inner core plays a vital role in the dynamics of our planet and is itself strongly exposed to dynamic processes as evidenced by a complex pattern of elastic structure. To gain deeper insight into the nature of these processes we rely on a characterization of the physical properties of the inner core which are governed by the material physics of its main constituent, iron. Here we review recent research on structure and dynamics of the inner core, focusing on advances in mineral physics. We will discuss results on core composition, crystalline structure, temperature,and various aspects of elasticity. Based on recent computational results, we will show that aggregate seismic properties of the inner core can be explained by temperature and compression effects on the elasticity of pure iron, and use single crystal anisotropy to develop a speculative textural model of the inner core that can explain major aspects of inner core anisotropy.
{
"annotation_id": "ff7dd363-5e7b-4131-a30b-4a55a48c8565",
"date_created": "2026-03-02T18:00:39.432000Z",
"date_modified": "2026-03-02T18:00:39.432000Z",
"file_hash": "114dca6dae292f9636e69afcedd9cfbb634c8fff2791011d3cf964e2996c2715",
"private": false,
"record": {
"abstract": "The Earth\u0027s inner core plays a vital role in the dynamics of our planet and\nis itself strongly exposed to dynamic processes as evidenced by a complex\npattern of elastic structure. To gain deeper insight into the nature of these\nprocesses we rely on a characterization of the physical properties of the inner\ncore which are governed by the material physics of its main constituent, iron.\nHere we review recent research on structure and dynamics of the inner core,\nfocusing on advances in mineral physics. We will discuss results on core\ncomposition, crystalline structure, temperature,and various aspects of\nelasticity. Based on recent computational results, we will show that aggregate\nseismic properties of the inner core can be explained by temperature and\ncompression effects on the elasticity of pure iron, and use single crystal\nanisotropy to develop a speculative textural model of the inner core that can\nexplain major aspects of inner core anisotropy.",
"arxiv_id": "physics/0204055",
"authors": [
"Gerd Steinle-Neumann",
"Lars Stixrude",
"R. E. Cohen"
],
"categories": [
"physics.geo-ph"
],
"title": "Physical Properties of Iron in the Inner Core",
"url": "https://arxiv.org/abs/physics/0204055"
},
"schema_id": "dorsal/arxiv",
"source": {
"execution_id": "44093681-2304-4a69-b014-063bd5d8421c",
"id": "arXiv Dataset IDs",
"type": "Model",
"variant": "snapshot-2026-03-01",
"version": "0.1.0"
},
"user_id": 1000002
}