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  Ultrafast Electronic Phase Transition in La1/2Sr3/2MnO4 by Coherent Vibrational Excitation: Evidence for Nonthermal Melting of Orbital Order

Tobey, R. I., Prabhakaran, D., Boothroyd, A. T., & Cavalleri, A. (2008). Ultrafast Electronic Phase Transition in La1/2Sr3/2MnO4 by Coherent Vibrational Excitation: Evidence for Nonthermal Melting of Orbital Order. Physical Review Letters, 101(19): 197404. doi:10.1103/PhysRevLett.101.197404.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-0028-19B4-4 Version Permalink: http://hdl.handle.net/11858/00-001M-0000-0028-19B5-2
Genre: Journal Article

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PhysRevLett.101.197404.pdf (Publisher version), 795KB
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PhysRevLett.101.197404.pdf
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Copyright Date:
2008
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© American Physical Society
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 Creators:
Tobey, R. I.1, Author
Prabhakaran, D.1, Author
Boothroyd, A. T.1, Author
Cavalleri, Andrea1, 2, 3, Author              
Affiliations:
1Department of Physics, University of Oxford, Oxford, United Kingdom, ou_persistent22              
2Condensed Matter Dynamics Division, Max Planck Research Department for Structural Dynamics, Department of Physics, University of Hamburg, External Organizations, ou_2173637              
3CFEL, Hamburg, Germany, ou_persistent22              

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Free keywords: PACS numbers: 78.47.-p, 71.30.+h
 Abstract: An ultrafast electronic phase transition, associated with melting of orbital order, is driven in La1/2Sr3/2MnO4 by selectively exciting the Mn-O stretching mode with femtosecond pulses at 16  μm wavelength. The energy coupled into this vibration is less than 1% of that necessary to induce the transition thermally. Nonthermal melting of this electronic phase originates from coherent lattice displacements comparable to the static Jahn-Teller distortion.

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Language(s): eng - English
 Dates: 2008-04-292008-11-062008-11-07
 Publication Status: Published in print
 Pages: 4
 Publishing info: -
 Table of Contents: -
 Rev. Method: Peer
 Identifiers: DOI: 10.1103/PhysRevLett.101.197404
 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: 101 (19) Sequence Number: 197404 Start / End Page: - Identifier: ISSN: 0031-9007
CoNE: /journals/resource/954925433406_1