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Femtosecond Response of Quasiparticles and Phonons in Superconducting YBa2Cu3O7-δ Studied by Wideband Terahertz Spectroscopy

Pashkin, A. and Porer, M. and Beyer, M. and Kim, K.W. and Dubroka, A. and Bernhard, C. and Yao, X. and Dagan, Y. and Hackl, R. and Erb, A. and Demsar, J. and Huber, Rupert and Leitenstorfer, A. (2010) Femtosecond Response of Quasiparticles and Phonons in Superconducting YBa2Cu3O7-δ Studied by Wideband Terahertz Spectroscopy. Physical Review Letters (PRL) 105 (6), 067001.

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Abstract

We measure the anisotropic midinfrared response of electrons and phonons in bulk YBa2Cu3O7-δ after femtosecond photoexcitation. A line shape analysis of specific lattice modes reveals their transient occupation and coupling to the superconducting condensate. The apex oxygen vibration is strongly excited within 150 fs, demonstrating that the lattice absorbs a major portion of the pump energy ...

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Item Type:Article
Date:2010
Institutions:Physics > Institute of Experimental and Applied Physics > Chair Professor Huber > Group Rupert Huber
Identification Number:
ValueType
10.1103/PhysRevLett.105.067001DOI
Classification:
NotationType
74.72.-hPACS
74.25.KcPACS
78.47.jgPACS
Subjects:500 Science > 530 Physics
Status:Published
Refereed:Unknown
Created at the University of Regensburg:Unknown
Owner: Petra Gürster
Deposited On:28 Jan 2011 07:03
Last Modified:13 Mar 2014 16:49
Item ID:19120
Owner Only: item control page
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