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  Non-equilibrium control of complex solids by nonlinear phononics

Mankowsky, R., Först, M., & Cavalleri, A. (2016). Non-equilibrium control of complex solids by nonlinear phononics. Reports on Progress in Physics, 79(6): 064503. doi:10.1088/0034-4885/79/6/064503.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-002A-D6A0-2 Version Permalink: http://hdl.handle.net/11858/00-001M-0000-002A-D6A1-F
Genre: Journal Article

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 Creators:
Mankowsky, Roman1, Author              
Först, Michael1, Author              
Cavalleri, Andrea1, 2, Author              
Affiliations:
1Quantum Condensed Matter Dynamics, Condensed Matter Dynamics Department, Max Planck Institute for the Structure and Dynamics of Matter, Max Planck Society, ou_1938293              
2Department of Physics, Clarendon Laboratory, University of Oxford, ou_persistent22              

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Free keywords: nonlinear phononics; correlated electron systems; light-induced phase transitions
 Abstract: We review some recent advances in the use of optical fields at terahertz frequencies to drive the lattice of complex materials. We will focus on the control of low energy collective properties of solids, which emerge on average when a high frequency vibration is driven and a new crystal structure induced. We first discuss the fundamentals of these lattice rearrangements, based on how anharmonic mode coupling transforms an oscillatory motion into a quasi-static deformation of the crystal structure. We then discuss experiments, in which selectively changing a bond angle turns an insulator into a metal, accompanied by changes in charge, orbital and magnetic order. We then address the case of light induced non-equilibrium superconductivity, a mysterious phenomenon observed in some cuprates and molecular materials when certain lattice vibrations are driven. Finally, we show that the dynamics of electronic and magnetic phase transitions in complex-oxide heterostructures follow distinctly new physical pathways in case of the resonant excitation of a substrate vibrational mode.

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Language(s): eng - English
 Dates: 2016-03-072015-10-262016-03-102016-05-232016-06
 Publication Status: Published in print
 Pages: 20
 Publishing info: -
 Table of Contents: -
 Rev. Method: Peer
 Identifiers: DOI: 10.1088/0034-4885/79/6/064503
 Degree: -

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Title: Reports on Progress in Physics
Source Genre: Journal
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Publ. Info: Bristol : IOP Publishing
Pages: - Volume / Issue: 79 (6) Sequence Number: 064503 Start / End Page: - Identifier: ISSN: 0034-4885
CoNE: /journals/resource/954925438518