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1. Dirac points and the transition towards Weyl points in three-dimensional sonic crystals

   A four-fold-degenerate three-dimensional (3D) Dirac point, represents a degenerate pair of Weyl points carrying opposite chiralities. Moreover, 3D...

   Boyang **e, Hui Liu, ... Shuqi Chen in Light: Science & Applications

   Article Open access 22 December 2020
   

2. Surface states and breaking down of spin-to-surface locking on a conical topological insulator quantum dot

   Abstract

   We study a conical topological insulator quantum dot and we show how the cone tip affects the surface states energy spectrum. This is...

   L. G. Veiga, W. A. Moura-Melo in The European Physical Journal B

   Article 02 November 2022
   

3. Modular Hamiltonians for the massless Dirac field in the presence of a defect

   We study the massless Dirac field on the line in the presence of a point-like defect characterised by a unitary scattering matrix, that allows both...

   Mihail Mintchev, Erik Tonni in Journal of High Energy Physics

   Article Open access 22 March 2021

4. Discovery of the kagome superconductor in the Half-Heusler “NbRhSb”

   In this work, we present a study of new Kagome superconductor metal discovered for the first time into Half-Heusler NbRhSb. We followed a method...

   Chahrazed Messaoudi, Ali Mir, ... Youcef Cherchab in The European Physical Journal Plus

   Article 28 September 2022
   

5. Modular Hamiltonians for the massless Dirac field in the presence of a boundary

   We study the modular Hamiltonians of an interval for the massless Dirac fermion on the half-line. The most general boundary conditions ensuring the...

   Mihail Mintchev, Erik Tonni in Journal of High Energy Physics

   Article Open access 22 March 2021

6. Electronic reconstruction forming a C₂-symmetric Dirac semimetal in Ca₃Ru₂O₇

   Electronic band structures in solids stem from a periodic potential reflecting the structure of either the crystal lattice or electronic order. In...

   M. Horio, Q. Wang, ... J. Chang in npj Quantum Materials

   Article Open access 19 March 2021
   

7. Intrinsic magnetic topological materials

   Topological states of matter possess bulk electronic structures categorized by topological invariants and edge/surface states due to the...

   Yuan Wang, Fayuan Zhang, ... Chaoyu Chen in Frontiers of Physics

   Article 27 February 2023
   

8. Adsorption of Na Monolayer on Graphene Covered Pt(111) Substrate

   Modification of graphene electronic properties via contact with atoms of different kind allows for designing a number of functional post-silicon...

   A. A. Gogina, A. V. Tarasov, ... I. I. Klimovskikh in JETP Letters

   Article Open access 18 January 2023
   

9. Experimental signature of the parity anomaly in a semi-magnetic topological insulator

   A three-dimensional (3D) topological insulator features a 2D surface state consisting of a single linearly dispersive Dirac cone ^{1 – 3} . Under broken...

   M. Mogi, Y. Okamura, ... Y. Tokura in Nature Physics

   Article 27 January 2022
   

10. Asymmetric Fermi velocity induced chiral magnetotransport anisotropy in the type-II Dirac semi-metal PtSe₂

    PtSe ₂ is a recently discovered type-II Dirac semi-metal with heavily tilted Dirac cone in z -direction of the momentum. Negative magnetoresistance...

    Jian Sun, Russell S. Deacon, ... Koji Ishibashi in Communications Physics

    Article Open access 25 May 2020
    

11. Quantum anomalous semimetals

    The topological states of matter and topological materials have been attracting extensive interests as one of the frontier topics in condensed matter...

    Bo Fu, **-Yu Zou, ... Shun-Qing Shen in npj Quantum Materials

    Article Open access 20 September 2022
    

12. Fundamental solution of the stationary Dirac equation with a linear potential

    Abstract

    We explicitly express the fundamental solution of the stationary two-dimensional massless Dirac equation with a constant electric field in...

    I. A. Bogaevsky in Theoretical and Mathematical Physics

    Article 21 December 2020
    

13. Manipulating the anisotropy of the Dirac-Cone in graphene by laser fields

    Abstract

    One of the most striking properties of graphene is the relativistic-like Dirac-Cone spectrum of charge carriers. By applying high-frequency...

    Shahd Alfadhli, Fedor V. Kusmartsev, Sergey E. Savel’ev in The European Physical Journal B

    Article Open access 15 April 2019
    

14. Spin Berry curvature-enhanced orbital Zeeman effect in a kagome metal

    Berry phases and the related concept of Berry curvature can give rise to many unconventional phenomena in solids. Here, we discover a colossal...

    Hong Li, Siyu Cheng, ... Ilija Zeljkovic in Nature Physics

    Article 22 April 2024
    

15. Refractive index from negative to positive with frequencies at the Dirac-like cone in a photonic crystal

    In this paper, we numerically study the threefold accidental degeneracy conical dispersion (Driac-like cone) at the Brillouin zone center of the...

    Zeyu Wang, Guangwu Pan, ... Qiang Kan in Optical and Quantum Electronics

    Article 14 June 2019
    

16. Robust boundary-induced bulk propagations in elastic waveguides with nonplanar surfaces

    Trivial elastic waveguides induced by line defects and nontrivial elastic waveguides protected by topological edge states have been extensively...

    Baizhan **a, Jielong Zhang, ... Jianting Liu in Science China Physics, Mechanics & Astronomy

    Article 08 March 2024

17. Infrared Problem vs Gauge Choice: Scattering of Classical Dirac Field

    We consider the Dirac equation for the classical spinor field placed in an external, time-dependent electromagnetic field of the form typical for...

    Andrzej Herdegen in Annales Henri Poincaré

    Article Open access 05 February 2021

18. Robust behavior and spin-texture stability of the topological surface state in Bi₂Se₃ upon deposition of gold

    The Dirac point of a topological surface state (TSS) is protected against gap** by time-reversal symmetry. Conventional wisdom stipulates,...

    O. J. Clark, F. Freyse, ... J. Sánchez-Barriga in npj Quantum Materials

    Article Open access 28 March 2022
    

19. Symmetry-enforced three-dimensional Dirac phononic crystals

    Dirac semimetals, the materials featuring fourfold degenerate Dirac points, are critical states of topologically distinct phases. Such gapless...

    ** Ye, ... Zhengyou Liu in Light: Science & Applications

    Article Open access 10 March 2020
    

20. Chiral Symmetry Breaking in Kekulé-Ordered Graphene

    Chirality \(\hat{h}\) is a fundamental property for relativistic massless...

    Changhua Bao in Electronic Band Structure Engineering and Ultrafast Dynamics of Dirac Semimetals

    Chapter 2023