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  Possible observation of parametrically amplified coherent phasons in K0.3MoO3 using time-resolved extreme-ultraviolet angle-resolved photoemission spectroscopy

Liu, H., Gierz, I., Petersen, J. C., Kaiser, S., Simoncig, A., Cavalieri, A. L., et al. (2013). Possible observation of parametrically amplified coherent phasons in K0.3MoO3 using time-resolved extreme-ultraviolet angle-resolved photoemission spectroscopy. Physical Review B, 88(4): 045104. doi:10.1103/PhysRevB.88.045104.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-0019-8C88-9 Version Permalink: http://hdl.handle.net/11858/00-001M-0000-0028-2EBE-3
Genre: Journal Article

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PhysRevB.88.045104.pdf (Publisher version), 2MB
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http://dx.doi.org/10.1103/PhysRevB.88.045104 (Publisher version)
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http://arxiv.org/abs/1206.5743 (Preprint)
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 Creators:
Liu, Haiyun1, Author              
Gierz, Isabella1, Author              
Petersen, Jesse C.1, 2, Author              
Kaiser, Stefan1, Author              
Simoncig, Alberto3, Author              
Cavalieri, Adrian L.3, Author              
Cacho, C.4, Author
Turcu, I. C. E.4, Author
Springate, E.4, Author
Frassetto, F.5, Author
Poletto, L.5, Author
Dhesi, S. S.6, Author
Xu, Z.-A.7, Author
Cuk, T.8, Author
Merlin, R.9, Author
Cavalleri, Andrea1, 2, Author              
Affiliations:
1Condensed Matter Dynamics Division, Max Planck Research Department for Structural Dynamics, Department of Physics, University of Hamburg, External Organizations, ou_2173637              
2Department of Physics, Clarendon Laboratory, University of Oxford, Oxford, United Kingdom, ou_persistent22              
3Extreme Timescales, Research Groups, Max Planck Research Department for Structural Dynamics, Department of Physics, University of Hamburg, External Organizations, ou_2173639              
4Central Laser Facility, STFC Rutherford Appleton Laboratory, United Kingdom, ou_persistent22              
5CNR-Institute for Photonics and Nanotechnologies, Padova, Italy, ou_persistent22              
6Diamond Light Source Ltd., Chilton, United Kingdom, ou_persistent22              
7Department of Physics, Zhejiang University, Hangzhou, China, ou_persistent22              
8Materials Sciences Division and Physical Biosciences Division, Lawrence Berkeley National Laboratory, University of California , Berkeley, California 94720-1460, USA, ou_persistent22              
9Department of Physics, University of Michigan , Ann Arbor, Michigan 48109-1040, USA, ou_persistent22              

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Free keywords: PACS numbers: 78.47.jh, 78.30.−j, 78.40.−q, 79.60.−i
 Abstract: We use time- and angle-resolved photoemission spectroscopy in the extreme ultraviolet to measure the time- and momentum-dependent electronic structures of photoexcited K0.3MoO3. Prompt depletion of the charge-density wave condensate launches coherent oscillations of the amplitude mode, observed as a 1.7-THz-frequency modulation of the bonding band position. In contrast, the antibonding band oscillates at about half this frequency. We attribute these oscillations to coherent excitation of phasons via parametric amplification of phase fluctuations.

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Language(s): eng - English
 Dates: 2012-11-292012-06-252013-07-022013-07-15
 Publication Status: Published in print
 Pages: 5
 Publishing info: -
 Table of Contents: -
 Rev. Method: Peer
 Identifiers: DOI: 10.1103/PhysRevB.88.045104
arXiv: 1206.5743
 Degree: -

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Title: Physical Review B
  Abbreviation : Phys. Rev. B
Source Genre: Journal
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Publ. Info: Woodbury, NY : American Physical Society
Pages: - Volume / Issue: 88 (4) Sequence Number: 045104 Start / End Page: - Identifier: ISSN: 1098-0121
CoNE: /journals/resource/954925225008