Revealing a masked Verwey transition in nanoparticles of coexisting Fe-oxide phases
Artikel i vetenskaplig tidskrift, 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.

Författare

David Gonzalez-Alonso

Universidad de Cantabria

Jesus Gonzalez

Universidad de Cantabria

Helena Gavilan

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

J. Fock

Danmarks Tekniske Universitet (DTU)

Lunjie Zeng

Chalmers, Fysik, Nano- och biofysik

Kerstin Witte

Universität Rostock

P. Bender

Universidad de Cantabria

Luis Fernandez Barquin

Universidad de Cantabria

Christer Johansson

Chalmers, Mikroteknologi och nanovetenskap (MC2)

RSC Advances

2046-2069 (ISSN)

Vol. 11 1 390-396

Ämneskategorier

Oorganisk kemi

Materialkemi

Den kondenserade materiens fysik

DOI

10.1039/d0ra09226f

Mer information

Senast uppdaterat

2021-05-19