Zobrazeno 1 - 8
of 8
pro vyhledávání: '"Ammon Fischer"'
Publikováno v:
npj Computational Materials, Vol 10, Iss 1, Pp 1-8 (2024)
Abstract Understanding the origin of superconductivity in correlated two-dimensional materials is a key step in leveraging material engineering techniques for next-generation nanoscale devices. While it is widely accepted that phonons fluctuations on
Externí odkaz:
https://doaj.org/article/6936b7843251458d958e2a2ad6577f01
Autor:
Ammon Fischer, Lennart Klebl, Jonas B. Profe, Alexander Rothstein, Lutz Waldecker, Bernd Beschoten, Tim O. Wehling, Dante M. Kennes
Publikováno v:
Physical Review Research, Vol 6, Iss 1, p L012003 (2024)
Motivated by the recent experimental realization of ABCB stacked tetralayer graphene [Wirth et al., ACS Nano 16, 16617 (2022)1936-085110.1021/acsnano.2c06053], we study correlated phenomena in moiré-less graphene tetralayers for realistic interactio
Externí odkaz:
https://doaj.org/article/f68c68a91901407a9a1e13a8793181fb
Publikováno v:
Physical Review Research, Vol 5, Iss 1, p L012034 (2023)
Evidence for correlated insulating and superconducting phases around regions of high density of states was reported in the strongly spin-orbit coupled van der Waals material twisted tungsten diselenide (tWSe_{2}). We investigate their origin and inte
Externí odkaz:
https://doaj.org/article/b78171c6f7404571a8cfddf05bb63a95
Autor:
Ammon Fischer, Zachary A. H. Goodwin, Arash A. Mostofi, Johannes Lischner, Dante M. Kennes, Lennart Klebl
Publikováno v:
npj Quantum Materials, Vol 7, Iss 1, Pp 1-10 (2022)
Abstract Magic-angle twisted trilayer graphene (MATTG) recently emerged as a highly tunable platform for studying correlated phases of matter, such as correlated insulators and superconductivity. Superconductivity occurs in a range of doping levels t
Externí odkaz:
https://doaj.org/article/9f790ff927b143ecb0d06401e69f2449
Autor:
Konstantin G. Wirth, Jonas B. Hauck, Alexander Rothstein, Hristiyana Kyoseva, Dario Siebenkotten, Lukas Conrads, Lennart Klebl, Ammon Fischer, Bernd Beschoten, Christoph Stampfer, Dante M. Kennes, Lutz Waldecker, Thomas Taubner
Publikováno v:
ACS Nano
In tetralayer graphene, three inequivalent layer stackings should exist, however, only rhombohedral (ABCA) and Bernal (ABAB) stacking have so far been observed. The three stacking sequences differ in their electronic structure, with the elusive third
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cf99d1921e90e3c6e8875997b92a5ddb
http://arxiv.org/abs/2203.07971
http://arxiv.org/abs/2203.07971
Autor:
Lennart Klebl, Qiaoling Xu, Ammon Fischer, Lede Xian, Martin Claassen, Angel Rubio, Dante M Kennes
Publikováno v:
Electronic structure 4(1), 014004 (2022). doi:10.1088/2516-1075/ac49f5
Electronic Structure
Electronic Structure
Electronic structure 4(1), 014004 (2022). doi:10.1088/2516-1075/ac49f5
We study the electronic structure and correlated phases of twisted bilayers of platinum diselenide using large-scale ab initio simulations combined with the functional renorm
We study the electronic structure and correlated phases of twisted bilayers of platinum diselenide using large-scale ab initio simulations combined with the functional renorm
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2fd42094ee2a090f5c5d2ffd1a2b060f
Publikováno v:
Physical Review B
We investigate the interplay of magnetic fluctuations and Cooper pairing in twisted bilayer graphene from a purely microscopic model within a large-scale tight-binding approach resolving the \AA ngstr\"om scale. For local onsite repulsive interaction
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::68f586f69949072cf0b755f2ed0afeb6
https://hdl.handle.net/21.11116/0000-0007-D49A-C21.11116/0000-0007-D49C-A21.11116/0000-0007-D49D-9
https://hdl.handle.net/21.11116/0000-0007-D49A-C21.11116/0000-0007-D49C-A21.11116/0000-0007-D49D-9
Publikováno v:
Addi. Archivo Digital para la Docencia y la Investigación
instname
Nano letters 21(18), 7519-7526 (2021). doi:10.1021/acs.nanolett.1c01684
Nano Letters
instname
Nano letters 21(18), 7519-7526 (2021). doi:10.1021/acs.nanolett.1c01684
Nano Letters
We demonstrate that the concept of moir\'e flat bands can be generalized to achieve electronic band engineering in all three spatial dimensions. For many two dimensional van der Waals materials, twisting two adjacent layers with respect to each other
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a83d067b289bb5b4c4c1185a2a1754e8