dc and ac transport in few-layer black phosphorus
Abstract
The multilayer band structure of black phosphorus (BP) is highly anisotropic, and its bandgap is tunable by applying a perpendicular electric field Ez . Within a linear response theory, we study dc and ac transport in few-layer BP, as functions of the Fermi energy, temperature, or frequency,
in the presence of a Zeeman field. The current response to an in-plane electric field along two perpendicular directions is anisotropic and reflects that of the energy spectrum. In addition, we study the Hall conductivity and power absorption spectrum. The Hall
conductivity vanishes, but the power spectrum P(ω) shows a considerable structure as a function of the normalized frequency α/hω=2Δ and/or of the bandgap 2Δ tuned by Ez. In particular, a clear maximum occurs in the difference between spin-up and spin-down contributions
to P(ω). When potassium (K) atoms are deposited on top of BP, the anisotropy in the current response is stronger and the power spectrum is further modified. The results may... be pertinent to the development of phosphorene-based applications.
Keywords:
Low Dimensional Physics / black phosphorus / electronic transportSource:
Journal of Applied Physics, 2020, 127, 044302-Publisher:
- American Institute of Physics (AIP Publishing)
Funding / projects:
- Micro- Nanosystems and Sensors for Electric Power and Process Industry and Environmental Protection (RS-MESTD-Technological Development (TD or TR)-32008)
- Colorado State University
- Canadian NSERC under Grant No. OGP0121756
DOI: 10.1063/1.5129273
ISSN: 0021-8979
WoS: 000515698500014
Scopus: 2-s2.0-85078676542
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Institution/Community
IHTMTY - JOUR AU - Tahir, Muhammad AU - Krstajić, Predrag AU - Vasilopoulos, Panagiotis PY - 2020 UR - https://cer.ihtm.bg.ac.rs/handle/123456789/3974 AB - The multilayer band structure of black phosphorus (BP) is highly anisotropic, and its bandgap is tunable by applying a perpendicular electric field Ez . Within a linear response theory, we study dc and ac transport in few-layer BP, as functions of the Fermi energy, temperature, or frequency, in the presence of a Zeeman field. The current response to an in-plane electric field along two perpendicular directions is anisotropic and reflects that of the energy spectrum. In addition, we study the Hall conductivity and power absorption spectrum. The Hall conductivity vanishes, but the power spectrum P(ω) shows a considerable structure as a function of the normalized frequency α/hω=2Δ and/or of the bandgap 2Δ tuned by Ez. In particular, a clear maximum occurs in the difference between spin-up and spin-down contributions to P(ω). When potassium (K) atoms are deposited on top of BP, the anisotropy in the current response is stronger and the power spectrum is further modified. The results may be pertinent to the development of phosphorene-based applications. PB - American Institute of Physics (AIP Publishing) T2 - Journal of Applied Physics T1 - dc and ac transport in few-layer black phosphorus VL - 127 SP - 044302 DO - 10.1063/1.5129273 ER -
@article{ author = "Tahir, Muhammad and Krstajić, Predrag and Vasilopoulos, Panagiotis", year = "2020", abstract = "The multilayer band structure of black phosphorus (BP) is highly anisotropic, and its bandgap is tunable by applying a perpendicular electric field Ez . Within a linear response theory, we study dc and ac transport in few-layer BP, as functions of the Fermi energy, temperature, or frequency, in the presence of a Zeeman field. The current response to an in-plane electric field along two perpendicular directions is anisotropic and reflects that of the energy spectrum. In addition, we study the Hall conductivity and power absorption spectrum. The Hall conductivity vanishes, but the power spectrum P(ω) shows a considerable structure as a function of the normalized frequency α/hω=2Δ and/or of the bandgap 2Δ tuned by Ez. In particular, a clear maximum occurs in the difference between spin-up and spin-down contributions to P(ω). When potassium (K) atoms are deposited on top of BP, the anisotropy in the current response is stronger and the power spectrum is further modified. The results may be pertinent to the development of phosphorene-based applications.", publisher = "American Institute of Physics (AIP Publishing)", journal = "Journal of Applied Physics", title = "dc and ac transport in few-layer black phosphorus", volume = "127", pages = "044302", doi = "10.1063/1.5129273" }
Tahir, M., Krstajić, P.,& Vasilopoulos, P.. (2020). dc and ac transport in few-layer black phosphorus. in Journal of Applied Physics American Institute of Physics (AIP Publishing)., 127, 044302. https://doi.org/10.1063/1.5129273
Tahir M, Krstajić P, Vasilopoulos P. dc and ac transport in few-layer black phosphorus. in Journal of Applied Physics. 2020;127:044302. doi:10.1063/1.5129273 .
Tahir, Muhammad, Krstajić, Predrag, Vasilopoulos, Panagiotis, "dc and ac transport in few-layer black phosphorus" in Journal of Applied Physics, 127 (2020):044302, https://doi.org/10.1063/1.5129273 . .