Alpha-Fe2O3 Hematite Crystal Structure and Magnetic Properties

Alpha-Fe2O3, the most common form of iron(III) oxide, has a rhombohedral corundum structure and occurs naturally as the mineral hematite. The dataset describes its antiferromagnetic properties below ~260 K and weak ferromagnetism up to 950 K, with magnetic properties dependent on pressure, particle size, and magnetic field. Authored by Green house and shared under a CC-BY-4.0 license, this 483.2 KB PDF was last updated in June 2026.

Use Cases

• Study magnetic phase transitions based on the described Morin and Néel temperatures.
• Compare crystal structures based on the described rhombohedral corundum (α-Al2O3) structure.
• Investigate synthesis methods based on the mentioned thermal decomposition and liquid-phase precipitation.
• Model magnetic property dependencies based on the described factors of pressure, particle size, and magnetic field.

Strengths

• Describes specific magnetic transition temperatures (~260 K and 950 K).
• Identifies the natural mineral source (hematite) and its industrial relevance as the main ore of iron.
• File size is known (483.2 KB).

Limitations

• Row count is unknown, which may limit suitability assessment.
• Column-level documentation is absent; field semantics must be inferred after download.
• Description metadata is limited; actual data quality requires manual inspection after download.

Provenance

Source

Green house

Collection Method

Likely compiled from scientific literature.

Freshness

Last updated 2026-06-04 23:59:34; freshness should be verified.