Magnetic field effects on the rest potential of ferromagnetic electrodes

Author

Hinds, Gareth ; Rhen, Fernando M F ; Coey, J.M.D.

Author_Institution

Dept. of Phys., Trinity Coll., Dublin, Ireland

Volume

38

Issue

5

fYear

2002

fDate

9/1/2002 12:00:00 AM

Firstpage

3216

Lastpage

3218

Abstract

The application of a magnetic field unexpectedly alters the rest potential of ferromagnetic electrodes in paramagnetic solutions of their salts. Anodic shifts of up to 60 mV in a field of 1 tesla were observed for 1 M iron electrodes in iron nitrate solution. The magnitude of the shift depends on magnetic field strength and orientation and it varies with the anion used. The shift is smaller for cobalt and nickel (∼ 2 mV) than for iron. The effect is attributed to modifications in the rate of mass transport under the influence of the magnetic field gradient force.

Keywords

cobalt; electric potential; electrochemical electrodes; ferromagnetic materials; iron; nickel; surface magnetism; 1 tesla; Co; Fe; Ni; anion; anodic shifts; cobalt; ferromagnetic electrodes; iron electrodes; iron nitrate solution; magnetic field effects; magnetic field gradient force; magnetic field orientation; magnetic field strength; mass transport; nickel; paramagnetic solutions; rest potential; salts; Cobalt; Electrodes; Iron; Kinetic theory; Lorentz covariance; Magnetic fields; Magnetic forces; Nickel; Paramagnetic materials; Wire;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/TMAG.2002.802506

Filename

1042502