Now showing items 1-6 of 6

    • Coexistence of the Meissner and Vortex States on a Nanoscale Superconducting Spherical Shell 

      Tempere, Jacques; Gladilin, V. N.; Silvera, Isaac F.; Devreese, J. T.; Moshchalkov, V. V. (American Physical Society, 2009)
      We show that on superconducting spherical nanoshells, the coexistence of the Meissner state with a variety of vortex patterns drives the phase transition to higher magnetic fields. The spherical geometry leads to a ...
    • Nanoshells as a high-pressure gauge analyzed to 200 GPa 

      Van den Broeck, Nick; Putteneers, Katrijn; Tempere, Jacques; Silvera, Isaac F. (AIP Publishing, 2011)
      In this article, we present calculations that indicate that nanoshells can be used as a high-pressure gauge in diamond anvil cells (DACs). Nanoparticles have important advantages in comparison with the currently used ruby ...
    • Novel Methods to Create Multielectron Bubbles in Superfluid Helium 

      Fang, Jieping; Dementyev, Anatoly E.; Tempere, Jacques; Silvera, Isaac F. (American Institute of Physics, 2011)
      An equilibrium multielectron bubble (MEB) in liquid helium is a fascinating object with a spherical two-dimensional electron gas on its surface. We discuss two ways in which they have been created. For MEBs that have been ...
    • Pressure distribution in a quasi-hydrostatic pressure medium: A finite element analysis 

      Tempere, Jacques; Silvera, Isaac F. (AIP Publishing, 2011)
      The highest quality pressures on samples in a diamond anvil cell (DAC) at high pressures are produced using quasi-hydrostatic pressurization media such as helium or hydrogen. In this paper we carry out a finite element ...
    • Stabilization of Multi-electron Bubbles in Superfluid Helium 

      Silvera, Isaac F.; Fang, Jieping; Tempere, Jacques (IOP Publishing, 2014)
      Multielectron bubbles (MEBs) in liquid helium were first observed in the late 1970s, but their properties have never been explored experimentally due to their short lifetimes and the difficulty to localize them. We report ...
    • Thermionic Emission and a Novel Electron Collector in a Liquid Helium Environment 

      Fang, Jieping; Dementyev, Anatoly E.; Tempere, Jacques; Silvera, Isaac F. (American Institute of Physics, 2009)
      We study two techniques to create electrons in a liquid helium environment. One is thermionic emission of tungsten filaments in a low temperature cell in the vapor phase with a superfluid helium film covering all surfaces; ...