• Electrical tunability ofterahertz nonlinearity in graphene 

      Kovalev, Sergey; Hafez, Hassan A.; Tielrooij, Klass-Jan; Deinert, Jan-Christoph; Ilyakov, Igor; Awari, Nilesh; Alcaraz, David; Soundarapandian, Karuppasamy; Saleta, David; Germanskiy, Semyon; Chen, Min; Bawatna, Mohammed; Green, Bertram; Koppens, Frank H. L.; Mittendorff, Martin; Bonn, Mischa; Gensch, Michael; Turchinovich, Dmitry (Science, 2021-04-07)
      Article
      Accés obert
      Graphene is conceivably the most nonlinear optoelectronic material we know. Its nonlinear optical coefficients in the terahertz frequency range surpass those of other materials by many orders of magnitude. Here, we show ...
    • Light control of orbital domains: case of the prototypical manganite La0.5Sr1.5MnO4 

      Miller, Timothy; Gensch, Michael; Wall, Simon (IOP, 2016-11-14)
      Article
      Accés obert
      Control of electronic and structural ordering in correlated materials on the ultrafast timescale with light is a new and emerging approach to disentangle the complex interplay of the charge, spin, orbital and structural ...
    • Terahertz field control of in-plane orbital order in La0.5Sr1.5MnO4 

      Miller, Timothy A.; Chhajlany, Ravindra W.; Tagliacozzo, Luca; Green, Bertram; Kovalev, Sergey; Prabhakaran, Dharmalingam; Lewenstein, Maciej; Gensch, Michael; Wall, Simon (Nature Publishing Group, 2015-09-18)
      Article
      Accés obert
      In-plane anisotropic ground states are ubiquitous in correlated solids such as pnictides, cuprates and manganites. They can arise from doping Mott insulators and compete with phases such as superconductivity; however, their ...