Photoinduced melting of the orbital order in La${}_{0.5}$Sr${}_{1.5}$MnO${}_{4}$ measured with 4-$fs$ laser pulses

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Photoinduced melting of the orbital order in La $_{0.5}$ Sr $_{1.5}$ MnO $_{4}$ measured with 4- $f s$ laser pulses

R. Singla, A. Simoncig, M. Först, D. Prabhakaran, A. L. Cavalieri, and A. Cavalleri

Phys. Rev. B 88, 075107 – Published 5 August 2013; Erratum Phys. Rev. B 88, 159901 (2013)

Abstract

By measuring time-dependent optical birefringence with 4-femtosecond (fs) laser pulses, we determine the time scale for photoinduced melting of orbital order in the single-layer manganite La $_{0.5}$ Sr $_{1.5}$ MnO $_{4}$ . Such high time resolution is required to distinguish atomic motions that control the Jahn-Teller distortion from even faster electronic rearrangements. The experiment reveals an 18 fs bottleneck for the loss of orbital order, corresponding to about one-quarter period of the in-plane Jahn-Teller mode. Furthermore, we observe coherent oscillations of this Jahn-Teller mode. Both their amplitude and the birefringence drop exhibit a threshold in their fluence dependence, indicating cooperativity in the lattice response.

Received 16 May 2013

DOI:https://doi.org/10.1103/PhysRevB.88.075107

Erratum

Erratum: Photoinduced melting of the orbital order in La $_{0.5}$ Sr $_{1.5}$ MnO $_{4}$ measured with 4- $fs$ laser pulses [Phys. Rev. B 88, 075107 (2013)]

R. Singla, A. Simoncig, M. Först, D. Prabhakaran, A. L. Cavalieri, and A. Cavalleri

Phys. Rev. B 88, 159901 (2013)

Authors & Affiliations

R. Singla¹, A. Simoncig¹, M. Först¹, D. Prabhakaran², A. L. Cavalieri¹, and A. Cavalleri^1,2,*

¹Max-Planck Institute for the Structure and Dynamics of Matter, 22761 Hamburg, Germany
²Department of Physics, Clarendon Laboratory, University of Oxford, Oxford OX1 3PU, United Kingdom

^*Author to whom all correspondence should be addressed: andrea.cavalleri@mpsd.cfel.de

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Vol. 88, Iss. 7 — 15 August 2013

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