2.2 Reciprocal lattice of graphene The lattice obtained by applying Fourier transform to the direct lattice is termed as the ‘reciprocal lattice’. Obtained only by applying Fourier transform to the direct lattice, the reciprocal lattice is also hexagonal in structure, and its primitive unit cell ...
This lattice structure is applicable to many 2D materials like graphene, BN, MoS2, and many others. This chapter treats 3D analysis of direct and indirect space vectors (Section 2.1), 2D analysis of direct and indirect space vectors (Section 2.2), 2D analysis of first Brillouin zone vertex ...
Topologically robust sound propagation in an angular-momentum-biased graphene-like resonator lattice. Nat. Commun. 6, 8260 (2015). Article Google Scholar Fleury, R., Khanikaev, A. B. & Alù, A. Floquet topological insulators for sound. Nat. Commun. 7, 11744 (2016). Article Google ...
Here, we create a robotic mechanical metamaterials wherein we use local control loops to break reciprocity at the level of the interactions between the unit cells. We show theoretically and experimentally that first-of-their-kind spatially asymmetric standing waves at all frequencies and ...
ReciprocalSpacea...
The behavior of electrons in strained graphene is usually described using effective pseudomagnetic fields in a Dirac equation. Here we consider the particular case of a spatially constant strain. Our results indicate that lattice corrections are easily understood using a strained reciprocal space, in ...
of phonons in the contacts isωcontact(k) = ωmech − 2t cos(d0k). The transmission probabilities can be calculated by mode matching at the boundaries of the system; see Fig.1dand the Supplementary Note1. This continuum picture remains valid for a finite number of lattice ...