Hyperbolic plasmons in massive tilted two-dimensional Dirac materials

Mojarro, M. A.; Carrillo-Bastos, Ramon; Maytorena, Jesús A.

doi:10.1103/physrevb.105.l201408

Cited by 15 publications

(4 citation statements)

References 43 publications

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“…Thus, exotic plasmon properties are expected in materials with nontrivial topology and strong correlations. For example, hyperbolic plasmons were proposed to be realized in the Fermi arc surface states of Weyl semimetal and tilted 2D Dirac materials [324,325] . The interplay of hyperbolic plasmon and superconductivity is another important topic.…”

Section: Discussionmentioning

confidence: 99%

Optical properties and polaritons of low symmetry 2D materials

et al. 2023

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Low symmetry 2D materials with intrinsic in-plane anisotropic optical properties and high tunability provide a promising platform to explore and manipulate light-matter interactions. To date, dozens of in-plane anisotropic 2D materials with diverse band structures have been discovered. They exhibit rich optical properties, indicating great potential for novel applications in optics, photonics, and optoelectronics. In this paper, we thoroughly review the anisotropic optical properties and polaritons in many kinds of low symmetry 2D materials, aiming to elicit more research interest in this field. First, the optical properties of anisotropic 2D semiconductors, including interband absorption, photoluminescence, excitons, and band structure engineering for tuning optical responses, are introduced. Then fundamentals and advances in experiments of hyperbolic polaritons in anisotropic 2D materials, including phonon, plasmon, and exciton polaritons, are discussed. Finally, a perspective on promising research directions is given.

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Section: Discussionmentioning

confidence: 99%

Optical properties and polaritons of low symmetry 2D materials

et al. 2023

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“…The Hamiltonian that characterizes the massless K-valley Dirac fermions in an isotropic tilted Dirac cone material (where v x = v y = v F ), subject to a one-dimensional potential U(x) along the x-axis, can be explicitly expressed as follows [47][48][49][50][51][52][53][54][55]:…”

Section: Theoretical Model and Formalismmentioning

confidence: 99%

Dirac fermions collimation in heterostructures based on tilted Dirac cone materials

Choubabi,

Lemaalem,

Raggui

et al. 2024

Phys. Scr.

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This paper aims to theoretically analyze the behavior of Dirac fermions in tilted Dirac cone material, particularly those that have diffused a barrier potential. Our results show that the degree of tilt in the y-direction can lead to different collimations of the Dirac fermion beams relative to the Fermi and confinement surfaces. To study the transmission probability, we exploited our results numerically, taking into account the various configurations of the system and the different external and internal physical parameters by characterizing the behavior of fermionic transport in a proposed heterostructure. Our findings lay the groundwork for developing controllable electronicdevices utilizing Dirac fermion collimation, governed by the tilt parameter, enabling precise manipulation and enhanced functionality.

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“…In addition to 2D BP, WTe 2 and ZrSiSe, some the other layered anisotropic crystals, e.g., β-allotrope of carbon phosphide 89 and massive tilted 2D Dirac materials, 54,90 have been also theoretically predicted to support hyperbolic plasmons. Nevertheless, the experimental detection of hyperbolic plasmon polaritons has not yet been realized in these materials due to the demand for strong coupling between intraband and interband transitions.…”

Section: Hyperbolic Plasmon Polaritonsmentioning

confidence: 99%