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Related Experiment Video

Updated: Jun 3, 2026

Visualizing Uniaxial-strain Manipulation of Antiferromagnetic Domains in Fe1+YTe Using a Spin-polarized Scanning Tunneling Microscope

Visualizing Uniaxial-strain Manipulation of Antiferromagnetic Domains in Fe₁₊_YTe Using a Spin-polarized Scanning Tunneling Microscope

Published on: March 24, 2019

Spangolite: an s = 1/2 maple leaf lattice antiferromagnet?

T Fennell¹, J O Piatek, R A Stephenson

¹Institut Laue Langevin, BP 156, 6, rue Jules Horowitz, 38042, Grenoble Cedex 9, France. fennell@ill.fr

Journal of Physics. Condensed Matter : an Institute of Physics Journal

|April 8, 2011

Summary

Spangolite, a copper sulfate mineral, features a unique triangular lattice structure. Despite structural trimers, magnetic susceptibility reveals dominant dimerization, reducing the magnetic moment.

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Last Updated: Jun 3, 2026

Visualizing Uniaxial-strain Manipulation of Antiferromagnetic Domains in Fe1+YTe Using a Spin-polarized Scanning Tunneling Microscope

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Published on: June 28, 2018

Area of Science:

Mineralogy
Solid-state Chemistry
Magnetism

Background:

Spangolite, Cu(6)Al(SO(4))(OH)(12)Cl·3H(2)O, is a hydrated layered copper sulfate mineral.
Its Cu(2+) ions form a triangular lattice, approximating a maple leaf lattice.

Purpose of the Study:

To detail the crystal structure of spangolite.
To investigate the magnetic properties and their relation to the crystal structure.

Main Methods:

X-ray crystallography for structural analysis.
Magnetic susceptibility measurements at varying temperatures.

Main Results:

The crystal structure suggests edge-linked trimers with differing exchange parameters.
Magnetic susceptibility indicates that dimerization, not trimerization, dominates magnetic behavior.
The observed high-temperature magnetic moment is significantly lower than theoretically predicted for six s=1/2 spins.

Conclusions:

Spangolite exhibits complex magnetic interactions deviating from its apparent structural units.
The interplay between crystal structure and magnetic properties in spangolite warrants further investigation.