Revealing a masked Verwey transition in nanoparticles of coexisting Fe-oxide phases
Journal article, 2020

The attractive electronic and magnetic properties together with their biocompatibility make iron-oxide nanoparticles appear as functional materials. In Fe-oxide nanoparticle (IONP) ensembles, it is crucial to enhance their performance thanks to controlled size, shape, and stoichiometry ensembles. In light of this, we conduct a comprehensive investigation in an ensemble of ca. 28 nm cuboid-shaped IONPs in which all the analyses concur with the coexistence of magnetite/maghemite phases in their cores. Here, we are disclosing the Verwey transition by temperature dependent (4-210 K) Raman spectroscopy.

Author

David Gonzalez-Alonso

University of Cantabria

Jesus Gonzalez

University of Cantabria

Helena Gavilan

CSIC - Instituto de Ciencia de Materiales de Madrid (ICMM)

J. Fock

Technical University of Denmark (DTU)

Lunjie Zeng

Chalmers, Physics, Nano and Biophysics

Kerstin Witte

University of Rostock

P. Bender

University of Cantabria

Luis Fernandez Barquin

University of Cantabria

Christer Johansson

RISE Research Institutes of Sweden

RSC Advances

20462069 (eISSN)

Vol. 11 1 390-396

Subject Categories

Inorganic Chemistry

Materials Chemistry

Condensed Matter Physics

Infrastructure

Chalmers Materials Analysis Laboratory

DOI

10.1039/d0ra09226f

More information

Latest update

4/11/2023