Zobrazeno 1 - 10
of 233
pro vyhledávání: '"MARCO BERNASCONI"'
Publikováno v:
Scientific Reports, Vol 14, Iss 1, Pp 1-10 (2024)
Abstract Superlattices made of alternating blocks of the phase change compound Sb $$_2$$ 2 Te $$_3$$ 3 and of TiTe $$_2$$ 2 confining layers have been recently proposed for applications in neuromorphic devices. The Sb $$_2$$ 2 Te $$_3$$ 3 /TiTe $$_2$
Externí odkaz:
https://doaj.org/article/4b32cc547ee54e2580c3676d6aea6d93
Publikováno v:
npj Computational Materials, Vol 10, Iss 1, Pp 1-12 (2024)
Abstract The phase change compound Ge2Sb2Te5 (GST225) is exploited in advanced non-volatile electronic memories and in neuromorphic devices which both rely on a fast and reversible transition between the crystalline and amorphous phases induced by Jo
Externí odkaz:
https://doaj.org/article/04405c50960c402eaffb7a235fad325e
Autor:
Tomoki Fujita, Yuhan Chen, Yoshio Kono, Seiya Takahashi, Hidetaka Kasai, Davide Campi, Marco Bernasconi, Koji Ohara, Hirokatsu Yumoto, Takahisa Koyama, Hiroshi Yamazaki, Yasunori Senba, Haruhiko Ohashi, Ichiro Inoue, Yujiro Hayashi, Makina Yabashi, Eiji Nishibori, Riccardo Mazzarello, Shuai Wei
Publikováno v:
Nature Communications, Vol 14, Iss 1, Pp 1-10 (2023)
Abstract While polymorphism is prevalent in crystalline solids, polyamorphism draws increasing interest in various types of amorphous solids. Recent studies suggested that supercooling of liquid phase-change materials (PCMs) induces Peierls-like dist
Externí odkaz:
https://doaj.org/article/5277a37d57cc4841b9cbb4dbff112cb4
Autor:
Stefano Cecchi, Jamo Momand, Daniele Dragoni, Omar Abou El Kheir, Federico Fagiani, Dominik Kriegner, Christian Rinaldi, Fabrizio Arciprete, Vaclav Holý, Bart J. Kooi, Marco Bernasconi, Raffaella Calarco
Publikováno v:
Advanced Science, Vol 11, Iss 1, Pp n/a-n/a (2024)
Abstract The possibility to engineer (GeTe)m(Sb2Te3)n phase‐change materials to co‐host ferroelectricity is extremely attractive. The combination of these functionalities holds great technological impact, potentially enabling the design of novel
Externí odkaz:
https://doaj.org/article/6c238b86e2b44ab485a514f22d7305c6
Autor:
Christian Martella, Davide Campi, Pinaka Pani Tummala, Erika Kozma, Paolo Targa, Davide Codegoni, Marco Bernasconi, Alessio Lamperti, Alessandro Molle
Publikováno v:
Nanomaterials, Vol 12, Iss 22, p 4050 (2022)
Shaping two-dimensional (2D) materials in arbitrarily complex geometries is a key to designing their unique physical properties in a controlled fashion. This is an elegant solution, taking benefit from the extreme flexibility of the 2D layers but req
Externí odkaz:
https://doaj.org/article/d5e0b524d34248aab2654313d0bf1c9c
Autor:
Daniel Tadesse Yimam, A. J. T. Van Der Ree, Omar Abou El Kheir, Jamo Momand, Majid Ahmadi, George Palasantzas, Marco Bernasconi, Bart J. Kooi
Publikováno v:
Nanomaterials, Vol 12, Iss 10, p 1717 (2022)
Integration of the prototypical GeSbTe (GST) ternary alloys, especially on the GeTe-Sb2Te3 tie-line, into non-volatile memory and nanophotonic devices is a relatively mature field of study. Nevertheless, the search for the next best active material w
Externí odkaz:
https://doaj.org/article/7ca3cfb644784727ab7b54c76679f89d
Autor:
Caroline Chèze, Flavia Righi Riva, Giulia Di Bella, Ernesto Placidi, Simone Prili, Marco Bertelli, Adriano Diaz Fattorini, Massimo Longo, Raffaella Calarco, Marco Bernasconi, Omar Abou El Kheir, Fabrizio Arciprete
Publikováno v:
Nanomaterials, Vol 12, Iss 6, p 1007 (2022)
In this study, we present a full characterization of the electronic properties of phase change material (PCM) double-layered heterostructures deposited on silicon substrates. Thin films of amorphous Ge-rich Ge-Sb-Te (GGST) alloys were grown by physic
Externí odkaz:
https://doaj.org/article/8475dc6a89a044628023681cf07d640d
Autor:
Stefano Cecchi, Iñaki Lopez Garcia, Antonio M. Mio, Eugenio Zallo, Omar Abou El Kheir, Raffaella Calarco, Marco Bernasconi, Giuseppe Nicotra, Stefania M. S. Privitera
Publikováno v:
Nanomaterials, Vol 12, Iss 4, p 631 (2022)
Enrichment of GeSbTe alloys with germanium has been proposed as a valid approach to increase the crystallization temperature and therefore to address high-temperature applications of non-volatile phase change memories, such as embedded or automotive
Externí odkaz:
https://doaj.org/article/ebdb9b0e8dd44f6c82c4649038aa079d
Autor:
Omar Abou El Kheir, Marco Bernasconi
Publikováno v:
Nanomaterials, Vol 11, Iss 9, p 2382 (2021)
Chalcogenide GeSbTe (GST) alloys are exploited as phase change materials in a variety of applications ranging from electronic non-volatile memories to neuromorphic and photonic devices. In most applications, the prototypical Ge2Sb2Te5 compound along
Externí odkaz:
https://doaj.org/article/bd9bddf7773546eba42c153a2a7d9b50
Autor:
Adrian Ruckhofer, Davide Campi, Martin Bremholm, Philip Hofmann, Giorgio Benedek, Marco Bernasconi, Wolfgang E. Ernst, Anton Tamtögl
Publikováno v:
Physical Review Research, Vol 2, Iss 2, p 023186 (2020)
We present a combined experimental and theoretical study of the surface vibrational modes of the topological insulator Bi_{2}Se_{3} with particular emphasis on the low-energy region below 10 meV that has been difficult to resolve experimentally. By a
Externí odkaz:
https://doaj.org/article/2e507154942d4366a7f873ac3d330e0b