Conveners
M2Po2A - Thin Films, Artificial Structures, Flux Pinning
- Carlo Ferdeghini (CNR)
- Judy Wu (University of Kansas)
CERN has lately defined the features of the possible next-generation high-energy hadron-hadron collider (FCC-hh): it would be located in a 100 km circumference ring, with a target center-of-mass energy of 100 TeV, achievable through the collision of counter-rotating proton beams with an energy of 50 TeV. Because of their high energy, the proton beams circulating in the accelerator would...
Superconductivity of alkali-metal(A)-doped fullerenes was found in 1991. A-doped fullerides AxC60 [0<x<6] are particularly interesting since their structures and electronic properties are strongly related to the doping carrier concentration. The compound, A3C60, shows superconducting transition at 19K (A=K), 29K (A=Rb) or 33K (A=Cs2Rb). Various types of fullerene-based supramolecular materials...
Thermodynamic properties of superconducting state in the $\rm H_{5}S_{2}$ system were analyzed precisely. The calculations were carried out in two cases: included the lowest-order vertex correction-scheme VCEE (Vertex Corrected Eliashberg Equations), on the other hand we get the model without the vertex corrections, the so-called CEE scheme (Classical Eliashberg Equations). It has been...
Our reserch was focused on ${\rm PbH_4(H_2)_2}$ which is the first of plumbanes homologous serie dopped by a hydrogen. Superconducting state in a homologous series wasn’t checked yet. This is a very interesting issue against of Ashcroft’s thesis about superconductivity in hydrogen rich compounds. This compound connects the heavy element like lead and the lightest – hydrogen. If the properties...
The transition metal oxide interface has attracted extensive attention due to its unique strong correlation properties. In particular, LaAlO3/SrTiO3(LAO/STO) interface [1], has a high mobility of two-dimensional electron gas (2DEG), and specific physical phenomena such as superconductivity [2,3], ferromagnetism [4], and the coexistence of superconductivity and ferromagnetism [5,6] have been...
The addition of different insulating, non-reactive nano-phases to YBa2Cu3O7-δ superconductor thin films improves current density by combining different flux pinning mechanisms. Barium Hafnate (BHO) 1D APCs can be tuned by the addition of secondary yttrium oxide (Y2O3) 3D APCs, leading to a different pinning landscape. Thin films are grown via pulsed laser deposition (PLD) by the adsorption of...
The APC/YBCO interface has been reported to affect the pinning efficiency of BaZrO3 (BZO) 1D APCs. Here we provide qualitative and quantitative study of the effect of semi-coherent (BZO) interface on the angular range of pinning by 1D BZO APCs in BZO/YBCO nanocomposite films. A good understanding of the nature of the interface, and its effect on the angular range of effective pinning, is...
Superconducting Nb3Sn films can be synthesized by controlling atomic concentration of Sn. Multilayer sequential sputtering of Nb and Sn thin films followed by high temperature annealing is considered as a method to fabricate Nb3Sn films where Sn composition of deposited films can be controlled by controlling the thickness of alternating Nb and Sn layers. We report on the structural,...
