Modeling resistive switching in nanogranular metal films

Autor: Walter Tarantino, Luciano Colombo

Publikováno v: Physical Review Research, Vol 2, Iss 4, p 043389 (2020)

Films produced by assembling bare gold clusters well beyond the electrical percolation threshold show a resistive switching behavior whose investigation has started only recently. Here we address the challenge to charaterize the resistance of a nanog

Externí odkaz: https://doaj.org/article/ceb0bfcd54df47d99ee90bf7bbf696ea

Modeling charge transport in gold nanogranular films

Autor: Miquel López-Suárez, Claudio Melis, Luciano Colombo, Walter Tarantino

Publikováno v: Physical Review Materials. 5

Cluster-assembled metallic films show interesting electrical properties, both in the near-to-percolation regime, when deposited clusters do not form a complete layer yet, and when the film thickness is well above the electrical percolation threshold.

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::15885110c8214a454b751b0bf2271112
https://doi.org/10.1103/physrevmaterials.5.126001

A reformulation of time-dependent Kohn-Sham theory in terms of the second time derivative of the density

Autor: Walter Tarantino, Carsten A. Ullrich

The Kohn–Sham approach to time-dependent density-functional theory (TDDFT) can be formulated, in principle, exactly by invoking the force-balance equation for the density, which leads to an explicit expression for the exchange–correlation potenti

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f0b3d4b78cd3d4a3d1b64db498866b39
http://arxiv.org/abs/2012.04953

Atomic responses to general dark matter-electron interactions

Autor: Riccardo Catena, Walter Tarantino, Timon Emken, Nicola A. Spaldin

Publikováno v: Physical Review Research
Physical Review Research, 2 (3)

In the leading paradigm of modern cosmology, about 80% of our Universe's matter content is in the form of hypothetical, as yet undetected particles. These do not emit or absorb radiation at any observable wavelengths, and therefore constitute the so-

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0b26a43dcc82f7a72ffef1f9fc86475e

Self-consistent Dyson equation and self-energy functionals: An analysis and illustration on the example of the Hubbard atom

Autor: Pina Romaniello, Lucia Reining, Walter Tarantino, Jorge Berger

Publikováno v: Physical Review B: Condensed Matter and Materials Physics (1998-2015)
Physical Review B: Condensed Matter and Materials Physics (1998-2015), American Physical Society, 2017, 96 (4), pp.045124. ⟨10.1103/PhysRevB.96.045124⟩
Physical Review B: Condensed Matter and Materials Physics (1998-2015), 2017, 96 (4), pp.045124. ⟨10.1103/PhysRevB.96.045124⟩

Perturbation theory using self-consistent Green's functions is one of the most widely used approaches to study many-body effects in condensed matter. On the basis of general considerations and by performing analytical calculations for the specific ex

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e4f4d0ef26af9b5640423df2bcbf96ae
https://hal.archives-ouvertes.fr/hal-01583906