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Atomic and Laser Physics
Credit: Jack Hobhouse

Andrea Cavalleri

Professor of Physics

Sub department

  • Atomic and Laser Physics
andrea.cavalleri@physics.ox.ac.uk
Telephone: 01865 (2)72365
Clarendon Laboratory, room 316.3
  • About
  • Publications

Restoring interlayer Josephson coupling in La1.885Ba0.115CuO4 by charge transfer melting of stripe order

Physical Review B American Physical Society (APS) 93:22 (2016) 224522

Authors:

V Khanna, R Mankowsky, M Petrich, H Bromberger, SA Cavill, E Möhr-Vorobeva, D Nicoletti, Y Laplace, GD Gu, JP Hill, M Först, A Cavalleri, SS Dhesi
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Josephson plasmonics in layered superconductors

Advances in Physics X Taylor & Francis 1:3 (2016) 387-411

Authors:

Y Laplace, A Cavalleri
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Broadband terahertz spectroscopy of the insulator-metal transition driven by coherent lattice deformation at the SmNiO3/LaAlO3 interface

Physical Review B American Physical Society (APS) 93:16 (2016) 161107

Authors:

W Hu, S Catalano, M Gibert, J-M Triscone, A Cavalleri
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High-Field High-Repetition-Rate Sources for the Coherent THz Control of Matter

Scientific Reports Springer Nature 6:1 (2016) 22256

Authors:

B Green, S Kovalev, V Asgekar, G Geloni, U Lehnert, T Golz, M Kuntzsch, C Bauer, J Hauser, J Voigtlaender, B Wustmann, I Koesterke, M Schwarz, M Freitag, A Arnold, J Teichert, M Justus, W Seidel, C Ilgner, N Awari, D Nicoletti, S Kaiser, Y Laplace, S Rajasekaran, L Zhang, S Winnerl, H Schneider, G Schay, I Lorincz, AA Rauscher, I Radu, S Mährlein, TH Kim, JS Lee, T Kampfrath, S Wall, J Heberle, A Malnasi-Csizmadia, A Steiger, AS Müller, M Helm, U Schramm, T Cowan, P Michel, A Cavalleri, AS Fisher, N Stojanovic, M Gensch
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Possible light-induced superconductivity in K3C60 at high temperature

Nature Nature Publishing Group 530:2016 (2016) 461-464

Authors:

Matteo Mitrano, Alice Cantaluppi, Daniele Nicoletti, Stefan Kaiser, Andrea Perucchi, Stefano Lupi, Paola Di Pietro, Daniele Pontiroli, Mauro Riccò, Stephen RJF Clark, Dieter Jaksch, Andrea Cavalleri

Abstract:

The non-equilibrium control of emergent phenomena in solids is an important research frontier, encompassing effects such as the optical enhancement of superconductivity. Nonlinear excitation of certain phonons in bilayer copper oxides was recently shown to induce superconducting-like optical properties at temperatures far greater than the superconducting transition temperature, Tc (refs 4, 5, 6). This effect was accompanied by the disruption of competing charge-density-wave correlations, which explained some but not all of the experimental results. Here we report a similar phenomenon in a very different compound, K3C60. By exciting metallic K3C60 with mid-infrared optical pulses, we induce a large increase in carrier mobility, accompanied by the opening of a gap in the optical conductivity. These same signatures are observed at equilibrium when cooling metallic K3C60 below Tc (20 kelvin). Although optical techniques alone cannot unequivocally identify non-equilibrium high-temperature superconductivity, we propose this as a possible explanation of our results.
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