Now showing items 20-26 of 26

  • Research Update: Focused ion beam direct writing of magnetic patterns with controlled structural and magnetic properties 

    Urbánek, Michal; Flajšman, Lukáš; Křižáková, Viola; Gloss, Jonáš; Horký, Michal; Schmid, Michael; Varga, Peter (AIP Publishing, 2018-06-01)
    Focused ion beam irradiation of metastable Fe78Ni22 thin films grown on Cu(100) substrates is used to create ferromagnetic, body-centered cubic patterns embedded into paramagnetic, face-centered-cubic surrounding. The ...
  • Single-layer graphene on epitaxial FeRh thin films 

    Uhlíř, Vojtěch; Pressacco, Frederico; Arregi Uribeetxebarria, Jon Ander; Procházka, Pavel; Průša, Stanislav; Potoček, Michal; Šikola, Tomáš; Čechal, Jan; Bendounan, Azzedine; Sirotti, F. (ELSEVIER, 2020-06-01)
    Graphene is a 2D material that displays excellent electronic transport properties with prospective applications in many fields. Inducing and controlling magnetism in the graphene layer, for instance by proximity of magnetic ...
  • Structural and optical properties of monocrystalline and polycrystalline gold plasmonic nanorods 

    Kejík, Lukáš; Horák, Michal; Šikola, Tomáš; Křápek, Vlastimil (The Optical Society, 2020-11-03)
    The quality of lithographically prepared structures is intimately related to the properties of the metal film from which they are fabricated. Here we compare two kinds of thin gold films on a silicon nitride membrane: a ...
  • Surface Modification and Enhancement of Ferromagnetism in BiFeO3 Nanofilms Deposited on HOPG 

    Ramazanov, Shihgasan; Sobola, Dinara; Orudzhev, Farid; Knápek, Alexandr; Polčák, Josef; Potoček, Michal; Kaspar, Pavel; Dallaev, Rashid (MDPI, 2020-10-09)
    BiFeO3 (BFO) films on highly oriented pyrolytic graphite (HOPG) substrate were obtained by the atomic layer deposition (ALD) method. The oxidation of HOPG leads to the formation of bubble regions creating defective regions ...
  • Using Cerenkov radiation for measuring the refractive index in thick samples by interferometric cathodoluminescence 

    Stöger-Pollach, Michael; Löffler, Stefan; Maurer, Niklas; Bukvišová, Kristýna (Elsevier, 2020-07-01)
    Cathodoluminescence (CL) has evolved into a standard analytical technique in (scanning) transmission electron microscopy. CL utilizes light excited due to the interactions between the electron-beam and the sample. In the ...
  • Vacuum Rabi splitting of a dark plasmonic cavity mode revealed by fast electrons 

    Bitton, Ora; Gupta, Satyendra Nath; Houben, Lothar; Kvapil, Michal; Křápek, Vlastimil; Šikola, Tomáš; Haran, Gilad (Springer Nature, 2020-12-01)
    Recent years have seen a growing interest in strong coupling between plasmons and excitons, as a way to generate new quantum optical testbeds and influence chemical dynamics and reactivity. Strong coupling to bright plasmonic ...
  • X-ray induced electrostatic graphene doping via defect charging in gate dielectric 

    Procházka, Pavel; Mareček, David; Lišková, Zuzana; Čechal, Jan; Šikola, Tomáš (NPG, 2017-04-03)
    Graphene field effect transistors are becoming an integral part of advanced devices. Hence, the advanced strategies for both characterization and tuning of graphene properties are required. Here we show that the X-ray ...