Zobrazeno 1 - 10 of 11 pro vyhledávání: '"Kris Holtgrewe"'
1
Akademický článek
Spectroscopic Analysis of Rare-Earth Silicide Structures on the Si(111) Surface
Autor: Simone Sanna, Julian Plaickner, Kris Holtgrewe, Vincent M. Wettig, Eugen Speiser, Sandhya Chandola, Norbert Esser
Publikováno v: Materials, Vol 14, Iss 15, p 4104 (2021)
Two-dimensional rare-earth silicide layers deposited on silicon substrates have been intensively investigated in the last decade, as they can be exploited both as Ohmic contacts or as photodetectors, depending on the substrate doping. In this study,
Externí odkaz: https://doaj.org/article/9e8f0e7b44ac483dba79e94e36d384ee
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2
Akademický článek
Evolution of Topological Surface States Following Sb Layer Adsorption on Bi2Se3
Autor: Kris Holtgrewe, Conor Hogan, Simone Sanna
Publikováno v: Materials, Vol 14, Iss 7, p 1763 (2021)
Thin antimony layers adsorbed on bismuth selenide (Bi2Se3) present an exciting topological insulator system. Much recent effort has been made to understand the synthesis and electronic properties of the heterostructure, particularly the migration of
Externí odkaz: https://doaj.org/article/5755672b28154d9bbc2ea74afa1b746d
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7
Enforced Long-Range Order in 1D Wires by Coupling to Higher Dimensions
Autor: Kris Holtgrewe, Simone Sanna, Christa Fink, Zamin Mamiyev, Herbert Pfnür
Publikováno v: Physical review letters. 126(10)
One-dimensional wires are known to be inherently unstable at finite temperature. Here, we show that long-range order of atomic Au double chains adsorbed on a Si(553) surface is not only stabilized by interaction with the substrate, but spontaneous se
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::137f449dc233bc27bffea7225b50c697
https://pubmed.ncbi.nlm.nih.gov/33784116
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8
Continuous crossover from two-dimensional to one-dimensional electronic properties for metallic silicide nanowires
Autor: Lars Freter, Stephan Appelfeller, Simone Sanna, Christian Hassenstein, Mario Dähne, Martin Franz, Kris Holtgrewe, Hans Ferdinand Jirschik
Publikováno v: Physical Review B. 102
In a joint experimental and theoretical study on metallic TbSi2 nanowires, we observe a continuous crossover from a two-dimensional (2D) to a quasi-one-dimensional (1D) electronic structure by reduction of the nanowire width. The nanowires were grown
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::7fda4588a8d311fa52185f550cb9ab5f
https://doi.org/10.1103/physrevb.102.115433
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9
Temperature Driven Phase Transition at the Antimonene/Bi
Autor: Conor, Hogan, Kris, Holtgrewe, Fabio, Ronci, Stefano, Colonna, Simone, Sanna, Paolo, Moras, Polina M, Sheverdyaeva, Sanjoy, Mahatha, Marco, Papagno, Ziya S, Aliev, Mahammad, Babanly, Evgeni V, Chulkov, Carlo, Carbone, Roberto, Flammini
Publikováno v: ACS nano. 13(9)
We report the discovery of a temperature-induced phase transition between the α and β structures of antimonene. When antimony is deposited at room temperature on bismuth selenide, it forms domains of α-antimonene having different orientations with
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=pmid________::1f59d35a3c1e5416691f3e8cadd11bf1
https://pubmed.ncbi.nlm.nih.gov/31469534
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