Zobrazeno 1 - 10
of 126
pro vyhledávání: '"Niels R Walet"'
Publikováno v:
Nano Materials Science, Vol 4, Iss 1, Pp 27-35 (2022)
The effects of the long range electrostatic interaction in twisted bilayer graphene are described using the Hartree-Fock approximation. The results show a significant dependence of the band widths and shapes on electron filling, and the existence of
Externí odkaz:
https://doaj.org/article/1492c1df170c4f35b7736fe1970c46cc
Publikováno v:
Repositorio Institucional del Instituto Madrileño de Estudios Avanzados en Nanociencia
instname
Cea, T, Pantaleon Peralta, P A, Walet, N R & Guinea, F 2021, ' Electrostatic interactions in twisted bilayer graphene ', pp. 27-35 . https://doi.org/10.1016/j.nanoms.2021.10.001
instname
Cea, T, Pantaleon Peralta, P A, Walet, N R & Guinea, F 2021, ' Electrostatic interactions in twisted bilayer graphene ', pp. 27-35 . https://doi.org/10.1016/j.nanoms.2021.10.001
The effects of the long range electrostatic interaction in twisted bilayer graphene are described using the Hartree-Fock approximation. The results show a significant dependence of the band widths and shapes on electron filling, and the existence of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7a3d453bf19f6395906cc84ea97b46fd
https://doi.org/10.1016/j.nanoms.2021.10.001
https://doi.org/10.1016/j.nanoms.2021.10.001
Autor:
Yu Li, Leonardo Pierobon, Michalis Charilaou, Hans-Benjamin Braun, Niels R. Walet, Jörg F. Löffler, James J. Miles, Christoforos Moutafis
Publikováno v:
Physical Review Research, Vol 2, Iss 3, p 033006 (2020)
Skyrmionic textures are being extensively investigated due to the occurrence of novel topological magnetic phenomena, and their promising applications in a new generation of spintronic devices take advantage of the robust topological stability of the
Externí odkaz:
https://doaj.org/article/3e04d511eeb849f0ac76142ba883e270
Quantum many-body theory as a discipline in its own right dates largely from the 1950's. It has developed since then to its current position as one of the cornerstones of modern theoretical physics. The field remains vibrant and active, vigorous and
In July 2000 a conference was held to honour the 65th birthdays of four of the leading international figures in the field of quantum many-body theory. The joint research careers of John Clark, Alpo Kallio, Manfred Ristig and Sergio Rosati total some
Autor:
Andre K. Geim, Matthew Holwill, H. Nevison-Andrews, Francisco Guinea, Kostya S. Novoselov, Niels R. Walet, Colin R. Woods, Rene Fabregas, Laura Fumagalli, Pablo Ares
Publikováno v:
Nature Communications, Vol 12, Iss 1, Pp 1-7 (2021)
Woods, C R, Ares, P, Nevison-andrews, H, Holwill, M J, Fabregas, R, Guinea, F, Geim, A K, Novoselov, K S, Walet, N R & Fumagalli, L 2021, ' Charge-polarized interfacial superlattices in marginally twisted hexagonal boron nitride ', Nature Communications, vol. 12, no. 1 . https://doi.org/10.1038/s41467-020-20667-2
Nature Communications
Repositorio Institucional del Instituto Madrileño de Estudios Avanzados en Nanociencia
instname
Woods, C R, Ares, P, Nevison-andrews, H, Holwill, M J, Fabregas, R, Guinea, F, Geim, A K, Novoselov, K S, Walet, N R & Fumagalli, L 2021, ' Charge-polarized interfacial superlattices in marginally twisted hexagonal boron nitride ', Nature Communications, vol. 12, no. 1 . https://doi.org/10.1038/s41467-020-20667-2
Nature Communications
Repositorio Institucional del Instituto Madrileño de Estudios Avanzados en Nanociencia
instname
When two-dimensional crystals are brought into close proximity, their interaction results in reconstruction of electronic spectrum and crystal structure. Such reconstruction strongly depends on the twist angle between the crystals, which has received
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f37fb6d719ad8118816b217b4cf01aa4
https://doaj.org/article/61a2c1dc181a49218dced80d4237913e
https://doaj.org/article/61a2c1dc181a49218dced80d4237913e
Quantum many-body theory as a discipline in its own right dates largely from the 1950's. It has developed since then to its current position as one of the cornerstones of modern theoretical physics. The field remains vibrant and active, vigorous and
Publikováno v:
Repositorio Institucional del Instituto Madrileño de Estudios Avanzados en Nanociencia
instname
Pantaleon Peralta, P A, Cea, T, Brown, R, Walet, N R & Guinea, F 2021, ' Narrow bands, electrostatic interactions and band topology in graphene stacks ', 2D Materials . https://doi.org/10.1088/2053-1583/ac1b6d
2D Materials
instname
Pantaleon Peralta, P A, Cea, T, Brown, R, Walet, N R & Guinea, F 2021, ' Narrow bands, electrostatic interactions and band topology in graphene stacks ', 2D Materials . https://doi.org/10.1088/2053-1583/ac1b6d
2D Materials
The occurrence of superconducting and insulating phases is well-established in twisted graphene bilayers, and they have also been reported in other arrangements of graphene layers. We investigate three such arrangements: untwisted AB bilayer graphene
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0a2a71e7ae57abee006204e67d54edb8
http://hdl.handle.net/20.500.12614/2696
http://hdl.handle.net/20.500.12614/2696
Autor:
Christoforos Moutafis, Yu Li, Hans-Benjamin Braun, J.J. Miles, Jörg F. Löffler, Niels R. Walet, Leonardo Pierobon, Michalis Charilaou
Publikováno v:
Li, Y, Pierobon, L, Charilaou, M, Braun, H, Walet, N R, Löffler, J F, Miles, J J & Moutafis, C 2020, ' Tunable terahertz oscillation arising from Bloch-point dynamics in chiral magnets ', Physical Review Research, vol. 2, no. 3 . https://doi.org/10.1103/PhysRevResearch.2.033006
Li, Y, Pierobon, L, Charilaou, M, Braun, H-B, Walet, N R, Löffler, J F, Miles, J J & Moutafis, C 2020, ' Tuneable terahertz oscillation arising from Bloch-point dynamics in chiral magnets ', Physical Review Research, vol. 2, no. 3, 033006, pp. 1-15 . https://doi.org/10.1103/PhysRevResearch.2.033006
Physical Review Research, 2 (3)
University of Manchester-PURE
Li, Y, Pierobon, L, Charilaou, M, Braun, H-B, Walet, N R, Löffler, J F, Miles, J J & Moutafis, C 2020, ' Tuneable terahertz oscillation arising from Bloch-point dynamics in chiral magnets ', Physical Review Research, vol. 2, no. 3, 033006, pp. 1-15 . https://doi.org/10.1103/PhysRevResearch.2.033006
Physical Review Research, 2 (3)
University of Manchester-PURE
Skyrmionic textures are being extensively investigated due to the occurrence of novel topological magnetic phenomena, and their promising applications in a new generation of spintronic devices take advantage of the robust topological stability of the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0813607d0ba324ed8c9639e26bb58641
https://doi.org/10.1103/physrevresearch.2.033006
https://doi.org/10.1103/physrevresearch.2.033006
Autor:
Francisco Guinea, Niels R. Walet
Publikováno v:
Repositorio Institucional del Instituto Madrileño de Estudios Avanzados en Nanociencia
instname
Walet, N R & Guinea, F 2021, ' Flat bands, strains, and charge distribution in twisted-bilayer h-BN ', Physical Review B, vol. 103, 125427 . https://doi.org/10.1103/PhysRevB.103.125427
Physical Review B
instname
Walet, N R & Guinea, F 2021, ' Flat bands, strains, and charge distribution in twisted-bilayer h-BN ', Physical Review B, vol. 103, 125427 . https://doi.org/10.1103/PhysRevB.103.125427
Physical Review B
We study the effect of twisting on bilayer $h\text{\ensuremath{-}}\mathrm{BN}$. The effect of lattice relaxation is included; we look at the electronic structure, piezoelectric charges, and spontaneous polarization. We show that the electronic struct
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4405b4b0e5c5d1b8cc553c75d40a675e