Predicted electric field near small superconducting ellipsoids.
We predict the existence of large electric fields near the surface of superconducting bodies of ellipsoidal shape of dimensions comparable to the penetration depth. The electric field is quadrupolar in nature with significant corrections from higher order multipoles. Prolate (oblate) superconducting ellipsoids are predicted to exhibit fields consistent with negative (positive) quadrupole moments, reflecting the fundamental charge asymmetry of matter.
Hirsch
J E
JE
Department of Physics, University of California, San Diego, La Jolla, California 92093-0319, USA.