Zobrazeno 1 - 10
of 106
pro vyhledávání: '"Daghero, Dario"'
Autor:
Gavello, Gaia, Tofani, Giorgio, De Fazio, Domenico, Lettieri, Stefania, Mezzetta, Andrea, Guazzelli, Lorenzo, Pomelli, Christian S., Gonnelli, Renato S., Piatti, Erik, Daghero, Dario
Developing novel protocols for hydrogen (H) loading is crucial for furthering the investigation of hydrides as potential high-temperature superconductors at lower pressures compared to recent discoveries. Ionic gating-induced protonation (IGP) has em
Externí odkaz:
http://arxiv.org/abs/2410.15452
Autor:
Piatti, Erik, Torsello, Daniele, Breccia, Francesca, Tamegai, Tsuyoshi, Ghigo, Gianluca, Daghero, Dario
Publikováno v:
Nanomaterials 14, 1319 (2024)
The iron-based superconductors (IBSs) of the recently discovered 1144 class, unlike many other IBSs, display superconductivity in their stoichiometric form and are intrinsically hole doped. The effects of chemical substitutions with electron donors a
Externí odkaz:
http://arxiv.org/abs/2408.02511
Publikováno v:
Phys. Rev. Mater. 7, 094002 (2023)
The topotactic intercalation of transition-metal dichalcogenides with atomic or molecular ions acts as an efficient knob to tune the electronic ground state of the host compound. A representative material in this sense is 1$T$-TiSe$_{2}$, where the e
Externí odkaz:
http://arxiv.org/abs/2307.10979
Publikováno v:
Low Temp. Phys. 49, 886-892 (2023)
It is well known that point-contact Andreev reflection spectroscopy provides reliable measurements of the energy gap(s) in a superconductor when the contact is in the ballistic or nearly-ballistic regime. However, especially when the mean free path o
Externí odkaz:
http://arxiv.org/abs/2303.15968
Publikováno v:
Low Temp. Phys. 49, 770-785 (2023)
The iron-based compounds of the so-called 12442 family are very peculiar in various respects. They originate from the intergrowth of 122 and 1111 building blocks, display a large in-plane vs. out-of-plane anisotropy, possess double layers of FeAs sep
Externí odkaz:
http://arxiv.org/abs/2302.14767
Publikováno v:
Nanomaterials 12, 1842 (2022)
Transition metal dichalcogenides exhibit rich phase diagrams dominated by the interplay of superconductivity and charge density waves, which often result in anomalies in the electric transport properties. Here, we employ the ionic gating technique to
Externí odkaz:
http://arxiv.org/abs/2206.13278
Autor:
Piatti, Erik, Prando, Giacomo, Meinero, Martina, Tresca, Cesare, Putti, Marina, Roddaro, Stefano, Lamura, Gianrico, Shiroka, Toni, Carretta, Pietro, Profeta, Gianni, Daghero, Dario, Gonnelli, Renato S.
Publikováno v:
Commun. Phys. 6, 202 (2023)
Hydrogen (H) plays a key role in the near-to-room temperature superconductivity of hydrides at megabar pressures. This suggests that H doping could have similar effects on the electronic and phononic spectra of materials at ambient pressure as well.
Externí odkaz:
http://arxiv.org/abs/2205.12951
Autor:
Piatti, Erik, Colangelo, Marco, Bartoli, Mattia, Medeiros, Owen, Gonnelli, Renato S., Berggren, Karl K., Daghero, Dario
Publikováno v:
Phys. Rev. Applied 18, 054023 (2022)
Ionic gating is a powerful technique for tuning the physical properties of a material via electric field-induced charge doping, but is prone to introduce extrinsic disorder and undesired electrochemical modifications in the gated material beyond pure
Externí odkaz:
http://arxiv.org/abs/2205.05491
Autor:
Torsello, Daniele, Piatti, Erik, Ummarino, Giovanni A., Yi, Xiaolei, Xing, Xiangzhuo, Shi, Zhixiang, Ghigo, Gianluca, Daghero, Dario
Publikováno v:
npj Quantum Mater. 7, 10 (2022)
The 12442 compounds are a recently discovered family of iron-based superconductors, that share several features with the cuprates due to their strongly anisotropic structure, but are so far poorly understood. Here, we report on the gap structure and
Externí odkaz:
http://arxiv.org/abs/2201.07593
Autor:
Piatti, Erik, Sola, Alessandro, Daghero, Dario, Ummarino, Giovanni A., Laviano, Francesco, Nair, Jijeesh R., Gerbaldi, Claudio, Cristiano, Roberto, Casaburi, Alessandro, Gonnelli, Renato S.
Publikováno v:
Journal of Superconductivity and Novel Magnetism 29, 587-591 (2016)
We perform electric double-layer gating experiments on thin films of niobium nitride. Thanks to a cross-linked polymer electrolyte system of improved efficiency, we induce surface charge densities as high as $\approx 2.8 \times 10^{15}\,\mathrm{cm}^{
Externí odkaz:
http://arxiv.org/abs/2011.12132