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  Imaging Nanometer Phase Coexistence at Defects During the Insulator−Metal Phase Transformation in VO2 Thin Films by Resonant Soft X‑ray Holography 

  Vidas, Luciana; Günther, Christian M.; Miller, Timothy A.; Pfau, Bastian; Perez-Salinas, Daniel; Martínez, Elías; Schneider, Michael; Guehers, Erik; Gargiani, Pierluigi; Valvidares, Manuel; Marvel, Robert E.; Hallman, Kent A.; Haglund, Richard F.; Eisebitt, Stefan; Wall, Simon (ACS, 2018-05-16)
  Article
  Accés obert

  We use resonant soft X-ray holography to image the insulator−metal phase transition in vanadium dioxide with element and polarization specificity and nanometer spatial resolution. We observe that nanoscale inhomogeneity ...
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  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 ...
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  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)
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  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 ...
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  Time-domain separation of optical properties from structural transitions in resonantly bonded materials 

  Waldecker, Lutz; Miller, Timothy A.; Rudé, Miquel; Bertoni, Roman; Osmond, Johann; Simpson, Robert E.; Ernstorfer, Ralph; Wall, Simon (Nature Publishing Group, 2015-07-27)
  Article
  Accés obert

  The extreme electro-optical contrast between crystalline and amorphous states in phase-change materials is routinely exploited in optical data storage1 and future applications include universal memories2, flexible displays3, ...

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