Dirk Manske (SIMES Seminar)

Date/Time
Date(s) - Jun 5 2015
11:00 AM - 12:00 PM

Location
Shasta Room, Bldg. 40, Room 361

Category(ies)


Superconductors in Non-Equilibrium

Dirk Manske

Max Planck Institute for Solid State Research, Stuttgart, Germany

 

Dirk Manske photo

 

Time-resolved pump-probe experiments recently attracted great interest, since they allow for detection of hidden states and they provide new information on the underlying dynamics in solids in real time. Recently, we have established a theory for superconductors in non-equilibrium, for example in a pump-probe experiment [1,2]. Using the Density-Matrix-Theory (DMT) we have developed an approach to calculate the response of conventional and unconventional superconductors in a time-resolved experiment. In particular, DMT method is not restricted to small timescales; in particular it provides a microscopic description of the quench, and also allows also the incorporation of phonons [2].

Furthermore, we employ DMT to time-resolved Raman scattering experiments [3] and make predictions for 2-band superconductors [4]. Very recently, we have focused on the theory for order parameter amplitude (‘Higgs’) oscillations which are the realization of the Higgs mode in superconductors [5,2]. Our prediction has been recently confirmed experimentally [6,7].

 

References

1. J. Unterhinninghofen, D. Manske, and A. Knorr, Phys. Rev. B 77, 180509(R) (2008).

2. A. Schnyder, D. Manske, and A. Avella, Phys. Rev. B 84, 214513 (2011).

3. R.P. Saichu et al., Phys. Rev. Lett. 102, 177004 (2009).

4. A. Akbari, A. Schnyder, I. Eremin, and D. Manske, Europhys. Lett. 101, 17002 (2013).

5. H. Krull, D. Manske, A. Schnyder, G. Uhrig, Phys. Rev. B 90, 014514 (2014).

6. R. Matsunaga et al., PRL 111, 057002 (2013).

7. A. Rusydi, D. Manske et al., submitted to Science