Volume 77, Number 1, January 2007
|Number of page(s)||5|
|Section||Condensed Matter: Electronic Structure, Electrical, Magnetic and Optical Properties|
|Published online||05 January 2007|
Single-molecule spectroscopy as a possible tool to study the electric field in superconductors
Theoretische Physik, ETH-Hönggerberg - CH-8093 Zürich, Switzerland
2 Centre de Physique Moléculaire Optique et Hertzienne, Université Bordeaux 1-UMR 5798 CNRS - F-33405 Talence Cedex, France
3 Institut Universitaire de France - Paris, France
Accepted: 9 November 2006
We discuss the influence of the superconducting transition in a film on the fluorescence spectrum of the single molecule located nearby. We show that single-molecule spectroscopy (SMS) should be an appropriate tool to detect the electric charge associated with a vortex line. Also we argue that the electric field must appear at the boundaries between normal and superconducting regions of the intermediate phase and SMS could be useful to study this effect.
PACS: 74.25.-q – Properties of type I and type II superconductors / 74.25.Qt – Vortex lattices, flux pinning, flux creep / 42.62.Fi – Laser spectroscopy
© Europhysics Letters Association, 2007
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