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arXiv:1712.01095 (cond-mat)
[Submitted on 6 Oct 2017]

Title:Resonant inelastic x-ray scattering probes the electron-phonon coupling in the spin-liquid kappa-(BEDT-TTF)2Cu2(CN)3

Authors:V. Ilakovac, S. Carniato, P. Foury-Leylekian, S. Tomic, J.-P. Pouget, P. Lazic, Y. Joly, K. Miyagawa, K. Kanoda, A. Nicolaou
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Abstract:Resonant inelastic x-ray scattering at the N K edge reveals clearly resolved harmonics of the anion plane vibrations in the kappa-(BEDT-TTF)2Cu2(CN)3 spin-liquid insulator. Tuning the incoming light energy at the K edge of two distinct N sites permits to excite different sets of phonon modes. Cyanide CN stretching mode is selected at the edge of the ordered N sites which are more strongly connected to the BEDT-TTF molecules, while positionally disordered N sites show multi-mode excitation. Combining measurements with calculations on an anion plane cluster permits to estimate the sitedependent electron-phonon coupling of the modes related to nitrogen excitation.
Subjects: Materials Science (cond-mat.mtrl-sci); Other Condensed Matter (cond-mat.other)
Cite as: arXiv:1712.01095 [cond-mat.mtrl-sci]
  (or arXiv:1712.01095v1 [cond-mat.mtrl-sci] for this version)
  https://doi.org/10.48550/arXiv.1712.01095
Related DOI: https://doi.org/10.1103/PhysRevB.96.184303

Submission history

From: Vita Ilakovac [view email]
[v1] Fri, 6 Oct 2017 09:32:09 UTC (3,683 KB)
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