An EPR Study of Small Magnetic Nanoparticles-Reference-Cited by-同舟云学术

An EPR Study of Small Magnetic Nanoparticles

Published:2016-12-23 Issue:4 Volume:231 Page:745-757
ISSN:2196-7156
Container-title:Zeitschrift für Physikalische Chemie
language:en
Short-container-title:

Author:

Cini Alberto¹,Ceci Pierpaolo²,Falvo Elisabetta²,Gatteschi Dante³,Fittipaldi Maria¹

Affiliation:

1. INSTM and Department of Physics and Astronomy, University of Florence, via Sansone 1, 50019 Sesto Fiorentino, Italy

2. Institute of Molecular Biology and Pathology, CNR – National Research Council of Italy, 00185 Rome, Italy

3. INSTM and Department of Chemistry “U. Schiff”, University of Florence, via della Lastruccia, 3-13 50019 Sesto Fiorentino, Italy

Abstract

Abstract Magnetic nanoparticles (MNPs) of spinel type iron oxide (of approximately 4 nm) mineralized inside the internal cavity of a mini ferritin-type protein have been investigated by means of electron magnetic resonance (EMR) spectroscopy. EMR measurements have been recorded at different temperatures in perpendicular and parallel configurations. The spectra have been interpreted using an approach based on the giant spin model. We confirm the quantum behavior of the MNPs, moreover, the thermal evolution of the spin system in terms of population of excited spin states is showed.

Publisher

Walter de Gruyter GmbH

Subject

Physical and Theoretical Chemistry

Link

https://www.degruyter.com/document/doi/10.1515/zpch-2016-0846/pdf

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