Zobrazeno 1 - 10
of 422
pro vyhledávání: '"Peter, Bøggild"'
Publikováno v:
Advanced Photonics Research, Vol 5, Iss 11, Pp n/a-n/a (2024)
Symmetry‐protected bound states in the continuum (BICs), emerging at the Γ0 point in the Brillouin zone of periodic lattices of scatters, are robust optical modes under modifications in the lattice if the C2 symmetry (two fold rotational symmetry)
Externí odkaz:
https://doaj.org/article/968afae9000a4de9a6abdd9130061e49
Autor:
Andriani Vervelaki, Kousik Bagani, Daniel Jetter, Manh-Ha Doan, Tuan K. Chau, Boris Gross, Dennis V. Christensen, Peter Bøggild, Martino Poggio
Publikováno v:
Communications Materials, Vol 5, Iss 1, Pp 1-8 (2024)
Abstract Magnetic ordering in two-dimensional (2D) materials has recently emerged as a promising platform for data storage, computing, and sensing. To advance these developments, it is vital to gain a detailed understanding of how the magnetic order
Externí odkaz:
https://doaj.org/article/f24764b1b46a4389a919ed40f847b855
Autor:
Patrick R. Whelan, Domenico De Fazio, Iwona Pasternak, Joachim D. Thomsen, Steffen Zelzer, Martin O. Mikkelsen, Timothy J. Booth, Lars Diekhöner, Ugo Sassi, Duncan Johnstone, Paul A. Midgley, Wlodek Strupinski, Peter U. Jepsen, Andrea C. Ferrari, Peter Bøggild
Publikováno v:
Scientific Reports, Vol 14, Iss 1, Pp 1-9 (2024)
Abstract Terahertz time-domain spectroscopy (THz-TDS) can be used to map spatial variations in electrical properties such as sheet conductivity, carrier density, and carrier mobility in graphene. Here, we consider wafer-scale graphene grown on german
Externí odkaz:
https://doaj.org/article/f221f236947e4dd5af7fcbd8f77ad5cc
Autor:
Peter Bøggild
Publikováno v:
Nature Communications, Vol 14, Iss 1, Pp 1-3 (2023)
More than a decade after the first demonstration of large-scale graphene synthesis by chemical vapor deposition, the commercialization of graphene products is limited not only by price, but also by consistency, reproducibility, and predictability. He
Externí odkaz:
https://doaj.org/article/bfa0c1cdcd904f8aaa66c060ee0d387d
Autor:
Binbin Zhou, Mattias Rasmussen, Patrick Rebsdorf Whelan, Jie Ji, Abhay Shivayogimath, Peter Bøggild, Peter Uhd Jepsen
Publikováno v:
Sensors, Vol 23, Iss 7, p 3669 (2023)
We demonstrate that the conductivity of graphene on thin-film polymer substrates can be accurately determined by reflection-mode air-plasma-based THz time-domain spectroscopy (THz-TDS). The phase uncertainty issue associated with reflection measureme
Externí odkaz:
https://doaj.org/article/df473ef79d58425e92888212d18015ec
Autor:
Bjørn Hübschmann Mølvig, Thorsten Bæk, Jie Ji, Peter Bøggild, Simon Jappe Lange, Peter Uhd Jepsen
Publikováno v:
Sensors, Vol 23, Iss 6, p 3297 (2023)
We demonstrate the use of a novel, integrated THz system to obtain time-domain signals for spectroscopy in the 0.1–1.4 THz range. The system employs THz generation in a photomixing antenna excited by a broadband amplified spontaneous emission (ASE)
Externí odkaz:
https://doaj.org/article/41619dce088041fabc15946fc0b0f3b3
Autor:
Abhay Shivayogimath, Joachim Dahl Thomsen, David M. A. Mackenzie, Mathias Geisler, Raluca-Maria Stan, Ann Julie Holt, Marco Bianchi, Andrea Crovetto, Patrick R. Whelan, Alexandra Carvalho, Antonio H. Castro Neto, Philip Hofmann, Nicolas Stenger, Peter Bøggild, Timothy J. Booth
Publikováno v:
Nature Communications, Vol 10, Iss 1, Pp 1-7 (2019)
The scalable synthesis of 2D materials critically relies on finding appropriate vapour-phase metal precursors and careful fine-tuning of growth parameters. Here, the authors instead use solid elemental precursors and a single recipe to demonstrate a
Externí odkaz:
https://doaj.org/article/55e9370070b349a094d86b6423d139f2
Autor:
José M. Caridad, Stephen R. Power, Mikkel R. Lotz, Artsem A. Shylau, Joachim D. Thomsen, Lene Gammelgaard, Timothy J. Booth, Antti-Pekka Jauho, Peter Bøggild
Publikováno v:
Nature Communications, Vol 9, Iss 1, Pp 1-6 (2018)
Conductance quantization is the hallmark of non-interacting confined systems. The authors show that the quantization in graphene nanoconstrictions with low edge disorder is suppressed in the quantum Hall regime. This is explained by the addition of n
Externí odkaz:
https://doaj.org/article/1f1c0bf8dc194e2580c65fc9df057d0e
Autor:
Alfred J. H. Jones, Lene Gammelgaard, Mikkel O. Sauer, Deepnarayan Biswas, Roland J. Koch, Chris Jozwiak, Eli Rotenberg, Aaron Bostwick, Kenji Watanabe, Takashi Taniguchi, Cory R. Dean, Antti-Pekka Jauho, Peter Bøggild, Thomas G. Pedersen, Bjarke S. Jessen, Søren Ulstrup
Publikováno v:
Jones, A J H, Gammelgaard, L, Sauer, M O, Biswas, D, Koch, R J, Jozwiak, C, Rotenberg, E, Bostwick, A, Watanabe, K, Taniguchi, T, Dean, C R, Jauho, A P, Bøggild, P, Pedersen, T G, Jessen, B S & Ulstrup, S 2022, ' Nanoscale View of Engineered Massive Dirac Quasiparticles in Lithographic Superstructures ', ACS Nano, vol. 16, no. 11, pp. 19354-19362 . https://doi.org/10.1021/acsnano.2c08929
Massive Dirac fermions are low-energy electronic excitations characterized by a hyperbolic band dispersion. They play a central role in several emerging physical phenomena such as topological phase transitions, anomalous Hall effects and superconduct
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::425062119f297c35209c1cf3b9f2fc06
https://doi.org/10.1021/acsnano.2c08929
https://doi.org/10.1021/acsnano.2c08929
Autor:
Abhay Shivayogimath, David Mackenzie, Birong Luo, Ole Hansen, Peter Bøggild, Timothy J. Booth
Publikováno v:
Scientific Reports, Vol 7, Iss 1, Pp 1-10 (2017)
Abstract The processes governing multilayer nucleation in the chemical vapour deposition (CVD) of graphene are important for obtaining high-quality monolayer sheets, but remain poorly understood. Here we show that higher-order carbon species in the g
Externí odkaz:
https://doaj.org/article/b8d80fb70b0b4c47873c3e87a694f275