E. Silva

activity

20042024

most citedGalactic axions search with a superconducting resonant cavity

181 citations · 435 across the 20 of their papers we have counts for

collaborators

Showing cond-mat.supr-conShow all

18 papers · 1 filter

cond-mat.supr-con2020★ 14 cited

Pinning properties of FeSeTe thin film through multifrequency measurements of the surface impedance

Nicola Pompeo, Kostiantyn Torokhtii, Andrea Alimenti +3

We present high frequency measurements of the vortex dynamics of a FeSe $_{x}$ Te $_{1 - x}$ ( $x = 0.5$ ) thin film grown on a CaF $_{2}$ substrate and with a critical temperature $T_c\simeq18\…

cond-mat.supr-con2020★ 16 cited

Intrinsic Anisotropy and Pinning Anisotropy in Nanostructured YBa $_{2}$ Cu $_{3}$ O $_{7 - δ}$ from Microwave Measurements

N. Pompeo, A Alimenti, K Torokhtii +9

Anisotropy is an intrinsic factor that dictates the magnetic properties of YBCO, thus with great impact for many applications. Artificial pinning centres are often introduced in an…

cond-mat.supr-con2012

Superconducting and structural properties of Nb/PdNi/Nb trilayers

N. Pompeo, K. Torokhtii, C. Meneghini +7

The superconducting and structural properties of S/F/S (Superconductor/Ferromagnet/Superconductor) heterostructures have been studied by means of microwave measurements (1-20 GHz)…

cond-mat.supr-con2012

Directional vortex pinning at microwave frequency in YBa $_{2}$ Cu $_{3}$ O $_{7 - x}$ thin films with BaZrO $_{3}$ nanorods

N. Pompeo, K. Torokhtii, A. Augieri +3

We investigate the effect of the anisotropy and of the directional pinning in YBa $_{2}$ Cu $_{3}$ O $_{7 - x}$ films grown by pulsed laser ablation from targets containing BaZrO $_{3}$ at 5% mo…

cond-mat.supr-con2012★ 11 cited

Microwave properties of Nb/PdNi/Nb trilayers. Observation of flux flow in excess of Bardeen-Stephen theory

K. Torokhtii, N. Pompeo, C. Meneghini +5

We combine wideband (1-20 GHz) Corbino disk and dielectric resonator (8.2 GHz) techniques to study the microwave properties in Nb/PdNi/Nb trilayers, grown by UHV dc magnetron sputt…

cond-mat.supr-con2010★ 31 cited

Wideband microwave measurements in Nb/Pd $_{84}$ Ni $_{16}$ /Nb structures and comparison with thin Nb films

E. Silva, N. Pompeo, S. Sarti

We present wideband microwave measurements (1-22 GHz) taken on Superconductor/Ferromagnet heterostructures with the Corbino disk technique. We apply the technique to Nb/PdNi/Nb tri…

cond-mat.supr-con2008★ 22 cited

Reduction of the field-dependent microwave surface resistance in YBa_2Cu_3O_7 with sub-micrometric BaZrO_3 inclusions as a function of BaZrO_3 concentration

N. Pompeo, R. Rogai, E. Silva +3

In order to study the vortex pinning determined by artificially introduced pinning centers in the small-vortex displacement regime, we measured the microwave surface impedance at 4…

cond-mat.supr-con2008★ 109 cited

Reliable determination of vortex parameters from measurements of the microwave complex resistivity

N. Pompeo, E. Silva

We discuss and propose a complete data treatment, in close contact to typical microwave experimental data, in order to derive vortex parameters, such as pinning constant and viscou…

cond-mat.supr-con2008★ 1 cited

Nonlinear c-axis transport in Bi_2Sr_2CaCu_2O_(8+d) from two-barrier tunneling

M. Giura, N. Pompeo, E. Silva

Motivated by the peculiar features observed through intrinsic tunneling spectroscopy of Bi $_{2}$ Sr $_{2}$ CaCu $_{2}$ O $_{8 + δ}$ mesas in the normal state, we have extended the normal state t…

cond-mat.supr-con2008★ 8 cited

Microwave properties of DyBa_2Cu_3O_(7-x) monodomains and related compounds in magnetic fields

N. Pompeo, E. Silva, M. Ausloos +1

We present a microwave characterization of a DyBa $_{2}$ Cu $_{3}$ O $_{7 - x}$ single domain, grown by the top-seeded melt-textured technique. We report the (a,b) plane field-induced sur…

cond-mat.supr-con2007★ 1 cited

Microwave vortex dynamics in Tl-2212 thin films

N. Pompeo, H. Schneidewind, E. Silva

We present measurements of the effective surface impedance changes due to a static magnetic field, $ΔZ(H,T)=ΔR(H,T)+\rmi ΔX(H,T)$, in a Tl-2212 thin film with $T_{c} >$ 103 K, grown o…

cond-mat.supr-con2007★ 34 cited

Strong reduction of field-dependent microwave surface resistance in YBa $_{2}$ Cu $_{3}$ O $_{7 - δ}$ with sub-micrometric BaZrO $_{3}$ inclusions

N. Pompeo, R. Rogai, E. Silva +3

We observe a strong reduction of the field induced thin film surface resistance measured at high microwave frequency ( $ν =$ 47.7 GHz) in YBa $_{2}$ Cu $_{3}$ O $_{7 - δ}$ thin films grown o…

cond-mat.supr-con2006★ 1 cited

Microwave properties of YBa $_{2}$ Cu $_{3}$ O $_{7 - δ}$ films with BaZrO $_{3}$ nanoinclusions

N. Pompeo, E. Silva, R. Marcon +4

We present measurements of the microwave complex surface impedance at 47.7 GHz in YBa $_{2}$ Cu $_{3}$ O $_{7 - δ}$ (YBCO) films deposited by pulsed laser deposition with the explicit goal to…

cond-mat.supr-con2006★ 1 cited

Scaling of the microwave magneto-impedance in Tl $_{2}$ Ba $_{2}$ CaCu $_{2}$ O $_{8 + δ}$ thin films

E. Silva, N. Pompeo, R. Marcon +2

We present measurements of the magnetic field-induced microwave complex resistivity changes at 47 GHz in Tl $_{2}$ Ba $_{2}$ CaCu $_{2}$ O $_{8 + δ}$ (TBCCO) thin films, in the ranges 58 K$<T<T_{…

cond-mat.supr-con2006★ 5 cited

Vortex state microwave response in superconducting cuprates and MgB $_{2}$

E. Silva, N. Pompeo, S. Sarti +1

We investigate the physics of the microwave response in YBa $_{2}$ Cu $_{3}$ O $_{7 - δ}$ , SmBa $_{2}$ Cu $_{3}$ O $_{7 - δ}$ and MgB $_{2}$ in the vortex state. We first recall the theoretical b…

cond-mat.supr-con2006

Vortex state microwave resistivity in Tl-2212 thin films

N. Pompeo, S. Sarti, R. Marcon +2

We present measurements of the field induced changes in the 47 GHz complex resistivity, $Δ ρ ~ (H, T)$ , in Tl $_{2}$ Ba $_{2}$ CaCu $_{2}$ O $_{8 + x}$ (TBCCO) thin films with $T_{c}\sime…

cond-mat.supr-con2006

Mixed-state microwave response in superconducting cuprates

E. Silva, N. Pompeo, R. Marcon +4

We report measurements of the magnetic-field induced microwave complex resistivity in REBa $_{2}$ Cu $_{3}$ O $_{7 - δ}$ thin films, with RE = Y, Sm. Measurements are performed at 48 GHz…

cond-mat.supr-con2004

Field dependence of the microwave resistivity in SmBaCuO thin films

E. Silva, N. Pompeo, L. Muzzi +4

We report measurements of the microwave complex resistivity at 48 GHz in SmBaCuO thin films. Measurements are performed with a moderate magnetic field, $μ_{0} H <$ 0.8T, applied alon…