Issue 24, 2013
From the journal:

CrystEngComm

Electrochemical synthesis and magnetic properties of goethite single crystal nanowires

Á. Llavona,*a   A. Prados,a   V. Velasco,ab   P. Crespo,ab   M. C. Sáncheza  and  L. Pérez*ac  

* Corresponding authors

a Dept. Física de Materiales, Universidad Complutense de Madrid, 28040 Madrid, Spain
E-mail: lucas.perez@fis.ucm.es

b UCM-ADIF-CSIC. Instituto de Magnetismo Aplicado, 28230 Madrid, Spain

c Instituto de Sistemas Optoelectrónicos y Microtecnología. Universidad Politécnica de Madrid, 28040 Madrid, Spain

Abstract

We present an electrochemical method for the synthesis of iron hydroxide nanowires, together with a detailed structure and magnetic characterization. The nanowires are single crystalline and show the structure of goethite without traces of any other iron oxide or hydroxide. The nanowires are antiferromagnetic, like bulk goethite, but show a small magnetic hysteresis which arises from uncompensated surface spins. Exchange bias is also reported in the nanowires, an effect related to the coupling between the antiferromagnetic bulk and the surface spins, that shows weak ferromagnetism.

Graphical abstract: Electrochemical synthesis and magnetic properties of goethite single crystal nanowires

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Article information

DOI
https://doi.org/10.1039/C3CE26772E
Article type
Paper
Submitted
29 Oct 2012
Accepted
09 Apr 2013
First published
15 Apr 2013

CrystEngComm, 2013,15, 4905-4909

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Electrochemical synthesis and magnetic properties of goethite single crystal nanowires

Á. Llavona, A. Prados, V. Velasco, P. Crespo, M. C. Sánchez and L. Pérez, CrystEngComm, 2013, 15, 4905 DOI: 10.1039/C3CE26772E

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