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  Melting of Charge Stripes in Vibrationally Driven La1.875Ba0.125CuO4: Assessing the Respective Roles of Electronic and Lattice Order in Frustrated Superconductors

Först, M., Tobey, R. I., Bromberger, H., Wilkins, S. B., Khanna, V., Caviglia, A. D., et al. (2014). Melting of Charge Stripes in Vibrationally Driven La1.875Ba0.125CuO4: Assessing the Respective Roles of Electronic and Lattice Order in Frustrated Superconductors. Physical Review Letters, 112(15): 157002. doi:10.1103/PhysRevLett.112.157002.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-001A-3376-9 Version Permalink: http://hdl.handle.net/21.11116/0000-0003-5924-1
Genre: Journal Article

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PhysRevLett.112.157002.pdf (Publisher version), 710KB
 
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 Creators:
Först, M.1, Author              
Tobey, R. I.2, Author
Bromberger, H.1, Author              
Wilkins, S. B.3, Author
Khanna, V.4, 5, Author              
Caviglia, A. D., Author
Chuang, Y.-D.6, Author
Lee, W. S.7, Author
Schlotter, W. F.8, Author
Turner, J. J.8, Author
Minitti, M. P.8, Author
Krupin, O.9, Author
Xu, Z. J.3, Author
Wen, J. S.3, Author
Gu, G. D.3, Author
Dhesi, S. S.5, Author
Cavalleri, A.1, 4, 10, Author              
Hill, J. P.3, Author
Affiliations:
1Quantum Condensed Matter Dynamics, Condensed Matter Dynamics Department, Max Planck Institute for the Structure and Dynamics of Matter, Max Planck Society, Luruper Chaussee 149, Geb. 99 (CFEL), 22761 Hamburg, DE, ou_1938293              
2Zernike Institute for Advanced Materials, University of Groningen, 9747AG Groningen, Netherlands, ou_persistent22              
3Condensed Matter Physics and Materials Science Department, Brookhaven National Laboratory, Upton, New York 11973, USA, ou_persistent22              
4Department of Physics, Clarendon Laboratory, University of Oxford, Oxford OX1 3PU, United Kingdom, ou_persistent22              
5Diamond Light Source, Chilton, Didcot, Oxfordshire OX11 0QX, United Kingdom, ou_persistent22              
6Advanced Light Source, Lawrence Berkeley Laboratory, Berkeley 94720, California, USA, ou_persistent22              
7SIMES, SLAC National Accelerator Laboratory and Stanford University, Menlo Park 94025, California, USA, ou_persistent22              
8Linac Coherent Light Source, SLAC National Accelerator Laboratory, Menlo Park 94025, California, USA, ou_persistent22              
9European XFEL GmbH, 22761 Hamburg, Germany, ou_persistent22              
10Center for Free Electron Laser Science and University of Hamburg, 22761 Hamburg, Germany , ou_persistent22              

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Free keywords: PACS numbers: 74.40.Gh, 61.05.cp, 75.25.Dk, 78.47.J−
 Abstract: We report femtosecond resonant soft x-ray diffraction measurements of the dynamics of the charge order and of the crystal lattice in nonsuperconducting, stripe-ordered La1.875Ba0.125CuO4. Excitation of the in-plane Cu-O stretching phonon with a midinfrared pulse has been previously shown to induce a transient superconducting state in the closely related compound La1.675Eu0.2Sr0.125CuO4. In La1.875Ba0.125CuO4, we find that the charge stripe order melts promptly on a subpicosecond time scale. Surprisingly, the low temperature tetragonal (LTT) distortion is only weakly reduced, reacting on significantly longer time scales that do not correlate with light-induced superconductivity. This experiment suggests that charge modulations alone, and not the LTT distortion, prevent superconductivity in equilibrium.

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Language(s): eng - English
 Dates: 2014-01-242013-03-052014-04-172014-04-18
 Publication Status: Published in print
 Pages: 5
 Publishing info: -
 Table of Contents: -
 Rev. Method: Peer
 Identifiers: DOI: 10.1103/PhysRevLett.112.157002
BibTex Citekey: PhysRevLett.112.157002
arXiv: 1406.2483
 Degree: -

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Title: Physical Review Letters
  Abbreviation : Phys. Rev. Lett.
Source Genre: Journal
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Publ. Info: Woodbury, N.Y. : American Physical Society
Pages: - Volume / Issue: 112 (15) Sequence Number: 157002 Start / End Page: - Identifier: ISSN: 0031-9007
CoNE: /journals/resource/954925433406_1