The magneto-electric effect in molten salts—1. Visualization and measurement of the magneto-electric voltage in 1-ethyl-pyridinium bromide; comparison of results in the molten salt at 130 °C and in solutions in water and ethanol

✍ Scribed by Daniele Guerin—Ouler; Camille Nicollin

• Publisher: Elsevier Science
• Year: 1982
• Tongue: English
• Weight: 775 KB
• Volume: 27
• Category: Article
• ISSN: 0013-4686
• DOI: 10.1016/0013-4686(82)80215-6

✦ Synopsis

The magneb-electric effect has been studied using l-ethyl-pyridinium bromide in both the molten state and in solution in water or ethanol. The production of stable, coloured radical cations allows one to observe their movement in the cell. From the results it is possible to establish a relationship between the magneto-electric voltage and the type and behaviour of the electrolyte, to better understand the magnetoelectric effect in ionic liquid media and to explain the apwent non-reproducibility of certain results. A Lorentz force causes a deviation in the trajectory of charge carriers. This deviation in current lines produces differences in charge concentration in the cell, particularly between the measurement probes. Thus the physical significance ofthe observed voltage is different from that of the Hall voltage described for electronic solid conductors.