Physical properties of a natural lamellar aluminosilicate structure, rich in Fe
Source abstract
Abstract
AbstractWe present a natural sample from the coast of Sergipe, a state of Brazil, with a lamellar aluminosilicate structure characterized by three major components: phlogopite (K2(Mg,Fe2+)6[Si6Al2O20](OH)4), clinochlore (Mg,Al)6[Si3AlO10](OH)8 and goethite (αFeOOH). Ferrimagnetic behavior was found at room temperature with a Curie temperature TC>300K. At low temperatures, the zero field cooling curve showed a peak at 6K attributed to frustration caused by a ferrimagnetic–antiferromagnetic coupling between the lamellar structure (ferrimagnetic) and the grains of the antiferromagnetic goethite.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Clay minerals and soil interactions · Iron oxide chemistry and applications · Crystal Structures and Properties
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References (9)
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