Investigating pairing interactions with coherent charge fluctuation spectroscopy

It has been recently demonstrated that a pump pulse can generate coherent charge fluctuations in a superconductor through a stimulated Raman process [Mansart, et al., Proc. Natl. Acad. Sci. USA 110, 4539 (2013)]. Here, we present a tutorial review of the basic phenomena involved and show how the technique bears a strong analogy with nuclear magnetic resonance and electron paramagnetic resonance. The reflectivity of the system gets modulated by the coherent charge fluctuation of the condensate. A resonance at the Mott scale allows to identify a high-energy excitation which is coupled to the superconducting quasiparticles.


Published in:
European Physical Journal-Special Topics, 222, 5, 1223-1239
Year:
2013
Publisher:
Heidelberg, Springer Verlag
ISSN:
1951-6355
Laboratories:




 Record created 2013-10-01, last modified 2018-04-25


Rate this document:

Rate this document:
1
2
3
 
(Not yet reviewed)