Excitation of coherent oscillations in underdoped cuprate superconductors by intense THz pulses

Hoffmann MC, Lee W-S, Dakovski GL, Turner JJ, Gerber SM, Bonn D, Hardy W, Liang R & Salluzzo M
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Hoffmann, M. C., Lee, W. S., Dakovski, G. L., Turner, J. J., Gerber, S. M., Bonn, D., … Salluzzo, M. (2016). Excitation of coherent oscillations in underdoped cuprate superconductors by intense THz pulses. In M. K. Rafailov & E. Mazur (Eds.), Proceedings of SPIE: Vol. 9835. Ultrafast bandgap photonics (p. 98351M (8 pp.). https://doi.org/10.1117/12.2224993
https://www.dora.lib4ri.ch/psi/islandora/object/psi:23198

We use intense broadband THz pulses to excite the cuprate superconductors YBCO and NBCO in their underdoped phase, where superconducting and charge density wave ground states compete. We observe pronounced coherent oscillations at attributed to renormalized low-energy phonon modes. These oscillation features are much more prominent than those observed in all-optical pump-probe measurements, suggesting a different excitation mechanism.

Details
Publication Type

Proceedings Paper

Title

Excitation of coherent oscillations in underdoped cuprate superconductors by intense THz pulses

Author(s)

Hoffmann, Matthias C.

Lee, Wei-Sheng

Dakovski, Georgi L.

Turner, Joshua J.

Gerber, Simon M. (6218 Quantum Technologies)

Bonn, Doug

Hardy, Walter

Liang, Ruixing

Salluzzo, Marco

Conference Proceedings

Ultrafast bandgap photonics

Editor(s)

Rafailov, Michael K. (editor)
Mazur, Eric (editor)

Series Title

Proceedings of SPIE

Publisher

SPIE

Publication Place

Bellingham, WA, USA

Volume

9835

Start Page

98351M (8 pp.)

Publication Year

2016

Conference

SPIE defense + security

Conference Place

Baltimore, MD, USA

Conference Date

April 17-20, 2016

Keywords

nonlinear THz
high-temperature superconductivity
charge density wave

Collection

PSI Publications
Open Access

Additional Information

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