Zobrazeno 1 - 9 of 9 pro vyhledávání: '"Arlette S. Ngankeu"'
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Akademický článek
Pseudodoping of a metallic two-dimensional material by the supporting substrate
Autor: Bin Shao, Andreas Eich, Charlotte Sanders, Arlette S. Ngankeu, Marco Bianchi, Philip Hofmann, Alexander A. Khajetoorians, Tim O. Wehling
Publikováno v: Nature Communications, Vol 10, Iss 1, Pp 1-7 (2019)
Weak hybridization of two-dimensional metallic materials with their substrates plays a crucial role in charge transfer and doping characteristics. Here, the authors report heavy doping of monolayer 1H-TaS2 synthesized on Au(111) by ab-initio calculat
Externí odkaz: https://doaj.org/article/2ff2334d3506471d8ef9d982a1f5da7f
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2
Moiré-induced electronic structure modifications in monolayer V2S3 on Au(111)
Autor: Philip Hofmann, Charlotte E. Sanders, Arlette S. Ngankeu, Marco Bianchi, Raluca-Maria Stan, Sahar Pakdel, Nicola Lanatà, Umut Kamber, Fabian Arnold, Anand Kamlapure, Brian Kiraly, Andreas Eich, Alexander A. Khajetoorians, Jill A. Miwa
Publikováno v: Physical Review B. 103
There is immense interest in how the local environment influences the electronic structure of materials at the single-layer limit. We characterize moir\'e induced spatial variations in the electronic structure of in situ grown monolayer ${\mathrm{V}}
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::0da0c73dbb064401d4627375af5ce5e7
https://doi.org/10.1103/physrevb.103.115414
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4
Influence of an Anomalous Temperature Dependence of the Phase Coherence Length on the Conductivity of Magnetic Topological Insulators
Autor: Ion Garate, Karel Carva, Matteo Michiardi, Vladimír Sechovský, Karel Výborný, Jan Honolka, Jens Wiebe, Martin Vondráček, V. Komanický, Jonas Warmuth, M. Vališka, V. Stetsovych, Václav Holý, Arlette S. Ngankeu, Marco Bianchi, Róbert Tarasenko, V. Tkáč, G. Springholz, Ph. Hofmann
Publikováno v: Physical Review Letters
Tkáč, V, Výborný, K, Komanický, V, Warmuth, J, Michiardi, M, Ngankeu, A S, Vondráček, M, Tarasenko, R, Vališka, M, Stetsovych, V, Carva, K, Garate, I, Bianchi, M, Wiebe, J, Holý, V, Hofmann, P, Springholz, G, Sechovský, V & Honolka, J 2019, ' Influence of an Anomalous Temperature Dependence of the Phase Coherence Length on the Conductivity of Magnetic Topological Insulators ', Physical Review Letters, vol. 123, no. 3, 036406 . https://doi.org/10.1103/PhysRevLett.123.036406
Magnetotransport constitutes a useful probe to understand the interplay between electronic band topology and magnetism in spintronic devices. A recent theory of Lu and Shen [Phys. Rev. Lett. 112, 146601 (2014)] on magnetically doped topological insul
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8ccbc6e527ef603086601f76a142904e
https://pubmed.ncbi.nlm.nih.gov/31386447
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5
Pseudodoping of Metallic Two-Dimensional Materials by The Supporting Substrates
Autor: Tim O. Wehling, Andreas Eich, Philip Hofmann, Arlette S. Ngankeu, Marco Bianchi, Bin Shao, Alexander A. Khajetoorians, Charlotte E. Sanders
Publikováno v: Web of Science
Nature Communications, Vol 10, Iss 1, Pp 1-7 (2019)
Nature Communications
Nature Communications, 10, 1-7
Shao, B, Eich, A, Sanders, C, Ngankeu, A S, Bianchi, M, Hofmann, P, Khajetoorians, A A & Wehling, T O 2019, ' Pseudodoping of a metallic two-dimensional material by the supporting substrate ', Nature Communications, vol. 10, no. 1, 180 . https://doi.org/10.1038/s41467-018-08088-8
Nature Communications, 10, pp. 1-7
Charge transfers resulting from weak bondings between two-dimensional materials and the supporting substrates are often tacitly associated with their work function differences. In this context, two-dimensional materials could be normally doped at rel
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5c40236eb2b7ee0940c63793ae177b81
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6
Quasi-one-dimensional metallic band dispersion in the commensurate charge density wave of 1T−TaS2
Autor: Kevin Guilloy, Arlette S. Ngankeu, Marco Bianchi, Charlotte E. Sanders, Philip Hofmann, Martin Bremholm, Kai Rossnagel, Sanjoy K. Mahatha, Christina Breth Nielsen, Jill A. Miwa, K. Hanff
Publikováno v: Physical Review B. 96
The commensurate charge-density wave (CDW) in the layered compound $1T\ensuremath{-}{\mathrm{TaS}}_{2}$ has hitherto mostly been treated as a quasi-two-dimensional phenomenon. Recent band structure calculations have, however, predicted that the CDW c
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::c821e9eb336763e56e5b795b94b9aa91
https://doi.org/10.1103/physrevb.96.195147
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7
Spin-dependent electron-phonon coupling in the valence band of single-layer WS2
Autor: Harsh Bana, Kevin Guilloy, Alessandro Baraldi, N. F. Hinsche, Maciej Dendzik, Luca Bignardi, Silvano Lizzit, Philip Hofmann, Rosanna Larciprete, Paolo Lacovig, Arlette S. Ngankeu, Marco Bianchi, Antonija Grubišić Čabo, Jill A. Miwa, Elisabetta Travaglia, Kristian Sommer Thygesen, Sanjoy K. Mahatha, Charlotte E. Sanders
Publikováno v: Hinsche, N F, Ngankeu, A S, Guilloy, K, Mahatha, S K, Grubišic Cabo, A, Bianchi, M, Dendzik, M, Sanders, C E, Miwa, J A, Bana, H, Travaglia, E, Lacovig, P, Bignardi, L, Larciprete, R, Baraldi, A, Lizzit, S, Thygesen, K S & Hofmann, P 2017, ' Spin-dependent electron-phonon coupling in the valence band of single-layer WS 2 ', Physical Review B, vol. 96, no. 12, 121402 . https://doi.org/10.1103/PhysRevB.96.121402
Hinsche, N F, Ngankeu, A S, Guilloy, K, Mahatha, S K, Cabo, A G, Bianchi, M, Dendzik, M, Sanders, C E, Miwa, J A, Bana, H, Travaglia, E, Lacovig, P, Bignardi, L, Larciprete, R, Baraldi, A, Lizzit, S, Thygesen, K S & Hofmann, P 2017, ' Spin-dependent electron-phonon coupling in the valence band of single-layer WS2 ', Physical Review B, vol. 96, no. 12, 121402 . https://doi.org/10.1103/PhysRevB.96.121402
Physical Review B 96 (2017): 121402-1–121402-5. doi:10.1103/PhysRevB.96.121402
info:cnr-pdr/source/autori:Hinsche, Nicki Frank; Ngankeu, Arlette S.; Guilloy, Kevin; Mahatha, Sanjoy K.; Cabo, Antonija Grubisic; Bianchi, Marco; Dendzik, Maciej; Sanders, Charlotte E.; Miwa, Jill A.; Bana, Harsh; Travaglia, Elisabetta; Lacovig, Paolo; Bignardi, Luca; Larciprete, Rosanna; Baraldi, Alessandro; Lizzit, Silvano; Thygesen, Kristian Sommer; Hofmann, Philip/titolo:Spin-dependent electron-phonon coupling in the valence band of single-layer WS2/doi:10.1103%2FPhysRevB.96.121402/rivista:Physical Review B/anno:2017/pagina_da:121402-1/pagina_a:121402-5/intervallo_pagine:121402-1–121402-5/volume:96
The absence of inversion symmetry leads to a strong spin-orbit splitting of the upper valence band of semiconducting single-layer transition-metal dichalchogenides such as ${\mathrm{MoS}}_{2}$ or ${\mathrm{WS}}_{2}$. This permits a direct comparison
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e0c573390c4a0ab7397ae052a1f89d5b
https://orbit.dtu.dk/en/publications/f823c21d-4a2c-4558-9d4b-f70b26907927
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8
Crystalline and electronic structure of single-layer TaS$_2$
Autor: Charlotte E. Sanders, Arlette S. Ngankeu, Marco Bianchi, Alexander A. Khajetoorians, Philip Hofmann, Jill A. Miwa, Albert Bruix, Andreas Eich, Maciej Dendzik, Bjørk Hammer
Publikováno v: Physical Review B, 94, 5-10
Physical Review B, 94, 8, pp. 5-10
Sanders, C E, Dendzik, M, Ngankeu, A S, Eich, A, Bruix, A, Bianchi, M, Miwa, J A, Hammer, B, Khajetoorians, A A & Hofmann, P 2016, ' Crystalline and electronic structure of single-layer TaS2 ', Physical Review B, vol. 94, no. 8, 081404 . https://doi.org/10.1103/PhysRevB.94.081404
Single-layer TaS$_2$ is epitaxially grown on Au(111) substrates. The resulting two-dimensional crystals adopt the 1H polymorph. The electronic structure is determined by angle-resolved photoemission spectroscopy and found to be in excellent agreement
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2fc06e45d8661391e3864dc83c2c48f8
http://arxiv.org/abs/1606.05856
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9
Topological insulator homojunctions including magnetic layers: The example of n-p type (n-QLs Bi2Se3/Mn-Bi2Se3) heterostructures
Autor: G. Springholz, Jens Wiebe, Ph. Hofmann, Martin Vondráček, V. Holy, M. Vališka, Jan Honolka, Matteo Michiardi, V. Sechovsky, Jonas Warmuth, Arlette S. Ngankeu, Marco Bianchi
Publikováno v: Valiska, M, Warmuth, J, Michiardi, M, Vondracek, M, Ngankeu, A S, Holy, V, Sechovsky, V, Springholz, G, Bianchi, M, Wiebe, J, Hofmann, P & Honolka, J 2016, ' Topological insulator homojunctions including magnetic layers : The example of n-p type (n-QLs Bi2Se3/Mn-Bi2Se3) heterostructures ', Applied Physics Letters, vol. 108, no. 26, 262402 . https://doi.org/10.1063/1.4954834
Homojunctions between Bi$_2$Se$_3$ and its Mn-doped phase are investigated as a sample geometry to study the influence of spin degrees of freedom on topological insulator properties. $n$ quintuple layers (QLs) of Bi$_2$Se$_3$ are grown ontop of Mn-do
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3fbc1cf83b387a6dc57fc0e0613523fa
https://doi.org/10.1063/1.4954834
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