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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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PhysRevB.88.045104.pdf (Verlagsversion), 2MB
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PhysRevB.88.045104.pdf
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2013
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http://dx.doi.org/10.1103/PhysRevB.88.045104 (Verlagsversion)
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http://arxiv.org/abs/1206.5743 (Preprint)
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 Urheber:
Liu, Haiyun1, Autor           
Gierz, Isabella1, Autor           
Petersen, Jesse C.1, 2, Autor           
Kaiser, Stefan1, Autor           
Simoncig, Alberto3, Autor           
Cavalieri, Adrian L.3, Autor           
Cacho, C.4, Autor
Turcu, I. C. E.4, Autor
Springate, E.4, Autor
Frassetto, F.5, Autor
Poletto, L.5, Autor
Dhesi, S. S.6, Autor
Xu, Z.-A.7, Autor
Cuk, T.8, Autor
Merlin, R.9, Autor
Cavalleri, Andrea1, 2, Autor           
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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Schlagwörter: PACS numbers: 78.47.jh, 78.30.−j, 78.40.−q, 79.60.−i
 Zusammenfassung: 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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Sprache(n): eng - English
 Datum: 2012-11-292012-06-252013-07-022013-07-15
 Publikationsstatus: Erschienen
 Seiten: 5
 Ort, Verlag, Ausgabe: -
 Inhaltsverzeichnis: -
 Art der Begutachtung: Expertenbegutachtung
 Identifikatoren: DOI: 10.1103/PhysRevB.88.045104
arXiv: 1206.5743
 Art des Abschluß: -

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Titel: Physical Review B
  Kurztitel : Phys. Rev. B
Genre der Quelle: Zeitschrift
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Ort, Verlag, Ausgabe: Woodbury, NY : American Physical Society
Seiten: - Band / Heft: 88 (4) Artikelnummer: 045104 Start- / Endseite: - Identifikator: ISSN: 1098-0121
CoNE: https://pure.mpg.de/cone/journals/resource/954925225008