Magnetism of nanostructured hematite: from cultural heritage to fundamental properties
Abstract
, laboratory-synthesized by an auto-combustion sol-gel method and commercially purchased hematite). All samples underwent thermal treatments, designed to reproduce color changes typical of hematite pigments in archaeological contexts. Through a combination of DC magnetization measurements and Mössbauer spectroscopy, we demonstrated the possibility of differentiating the origin of hematite nanostructures based on their magnetic behavior. Interestingly, low-temperature NPD analysis revealed that the intensity of the magnetic peak (003) was partially suppressed but not completely extinguished as expected for a perfect antiferromagnetic alignment, which suggests a possible coexistence of weakly ferromagnetic and antiferromagnetic phases in distinct domains below the Morin transition.
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BibTeX
@article{slimani2026magnetism,
title = {{Magnetism of nanostructured hematite: from cultural heritage to fundamental properties}},
author = {Sawssen Slimani and Alberto Martinelli and Alexander Omelyanchik and Maryam Abdolrahimi and Elena Castagnotto and Pierfrancesco Maltoni and Sara Laureti and Gianni Barucca and Nader Yaacoub and Federico Locardi and Arooj Ramzan and Laura Gaggero and Maurizio Ferretti and Davide Peddis},
journal = {Physical Chemistry Chemical Physics},
year = {2026},
month = sep,
doi = {10.1039/d5cp03945b},
url = {https://hal.science/hal-05747404v1},
note = {CC BY},
}
RIS
TY - JOUR
TI - Magnetism of nanostructured hematite: from cultural heritage to fundamental properties
AU - Sawssen Slimani
AU - Alberto Martinelli
AU - Alexander Omelyanchik
AU - Maryam Abdolrahimi
AU - Elena Castagnotto
AU - Pierfrancesco Maltoni
AU - Sara Laureti
AU - Gianni Barucca
AU - Nader Yaacoub
AU - Federico Locardi
AU - Arooj Ramzan
AU - Laura Gaggero
AU - Maurizio Ferretti
AU - Davide Peddis
PY - 2026
DA - 2026/09/11
JO - Physical Chemistry Chemical Physics
DO - 10.1039/d5cp03945b
UR - https://hal.science/hal-05747404v1
AB - , laboratory-synthesized by an auto-combustion sol-gel method and commercially purchased hematite). All samples underwent thermal treatments, designed to reproduce color changes typical of hematite pigments in archaeological contexts. Through a combination of DC magnetization measurements and Mössbauer spectroscopy, we demonstrated the possibility of differentiating the origin of hematite nanostructures based on their magnetic behavior. Interestingly, low-temperature NPD analysis revealed that the intensity of the magnetic peak (003) was partially suppressed but not completely extinguished as expected for a perfect antiferromagnetic alignment, which suggests a possible coexistence of weakly ferromagnetic and antiferromagnetic phases in distinct domains below the Morin transition.
SN - 1463-9076
SN - 1463-9084
ER -