124 citations · 260 across the 12 of their papers we have counts for
12 papers · 1 filter
Disentangling photodoping, photoconductivity, and photosuperconductivity in the cuprates
R. El Hage, D. Sánchez-Manzano, V. Humbert +10
The normal-state conductivity and superconducting critical temperature of oxygen-deficient YBa2Cu3O7-x can be persistently enhanced by illumination. Strongly debated for years, the…
Memristive effects in YBa2Cu3O7-x devices with transistor-like structure
Aurélien Lagarrigue, Carolina de Dios, Salvatore Mesoraca +5
Cuprate superconductors are strongly sensitive materials to disorder and oxygen stoichiometry; even minute variations of those parameters drastically change their electronic proper…
Superconducting bimodal ionic photo-memristor
Ralph El Hage, Vincent Humbert, Victor Rouco +7
Memristive circuit elements constitute a cornerstone for novel electronic applications, such as neuromorphic computing, called to revolutionize information technologies. By definit…
Freezing and melting of vortex ice
J. Trastoy, M. Malnou, C. Ulysse +6
We report on the realization of artificial ice using superconducting vortices in geometrically frustrated pinning arrays. This vortex ice shows two unique properties among artifici…
Strong field-matching effects in superconducting YBa2Cu3O7-δ films with vortex energy landscapes engineered via masked ion irradiation
I. Swiecicki, C. Ulysse, T. Wolf +6
We have developed a masked ion irradiation technique to engineer the energy landscape for vortices in oxide superconductors. This approach associates the possibility to design the…
Nanoscale ferroelectric manipulation of magnetic flux quanta
Arnaud Crassous, Rozenn Bernard, Stéphane Fusil +7
Using heterostructures that combine a large-polarization ferroelectric (BiFeO3) and a high-temperature superconductor (YBa2Cu3O7-δ), we demonstrate the modulation of the supercondu…
Hysteretic magnetic pinning and reversible resistance switching in High-Tc superconductor/ferromagnet multilayers
C. Visani, P. J. Metaxas, A. Collaudin +6
We study a high-TC superconducting (YBa2Cu3O7-d) / ferromagnetic (Co/Pt multilayer) hybrid which exhibits resistance switching driven by the magnetic history: depending on the dire…
Imprinting nanoporous alumina patterns into the magneto-transport of oxide superconductors
J. E. Villegas, I. Swiecicki, R. Bernard +9
We used oxygen ion irradiation to transfer the nanoscale pattern of a porous alumina mask into high- superconducting thin films. This causes a nanoscale spatial modulation of super…
Non linear transport properties of an insulating YBCO nano-bridge
L. Fruchter, A. Kazumov, J. Briatico +2
We have investigated the transport properties of an insulating sub-micrometric YBa2Cu3O7-d bridge, patterned on a thin film. As expected for a variable-range-hopping insulator, tra…
Joule heating and high frequency nonlinear effects in the surface impedance of high Tc superconductors
Julien Kermorvant, Cornelis Jacominus Van Der Beek, Jean-Claude Mage +5
Using the dielectric resonator method, we have investigated nonlinearities in the surface impedance Zs = Rs + jXs of YBa2Cu3O7 thin films at 10 GHz as function of the incident micr…
Improving HTc Josephson Junctions (HTc JJ) by annealing: the role of vacancy-interstitial annihilation
M. Sirena, S. Matzen, N. Bergeal +4
We have studied the annealing effect in transport properties of High temperature Josephson Junctions (HTc JJ) made by ion irradiation. Low temperature annealing (80 degrees Celsius…
Study and optimization of ion-irradiated High-Tc Josephson nanoJunctions by Monte Carlo simulations
M. Sirena, N. Bergeal, J. Lesueur +5
High Tc Josephson nanoJunctions (HTc JnJ) made by ion irradiation have remarkable properties for technological applications. However, the spread in their electrical characteristics…