Volume 43, Number 4, August II 1998
|Page(s)||469 - 475|
|Section||Condensed matter: electronic structure, electrical, magnetic and optical properties|
|Published online||01 September 2002|
Analog of magnetoelectric effect in high-Tc granular superconductors
Instituto de Física, Universidade Federal do Rio Grande do Sul
91501-970 Porto Alegre, Brazil
2 Physics Department and Center for the Interdisciplinary Research on Complex Systems Northeastern University - Boston, MA, 02115, USA
3 Instituto de Física, Universidad Nacional Autónoma de México Apdo. Postal 20-364, 01000 México D. F., México
Accepted: 2 July 1998
We propose the existence of an electric-field–induced nonlinear magnetization in a weakly coupled granular superconductor due to time-parity violation. As the field increases the induced magnetization passes from para- to dia-magnetic behavior. We discuss conditions under which this effect could be experimentally measured in high-temperature superconductors.
PACS: 75.80.+q – Magnetomechanical and magnetoelectric effects, magnetostriction / 74.50.+r – Proximity effects, weak links, tunneling phenomena, and Josephson effects
© EDP Sciences, 1998
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