Triangular lattice structure

Macropores with triangular lattice structure, 2D periodicity in refi active index perpendicular to pore axis (lithography + alkaline etching on n-type silicon wafer)... 

Fig. 2.16. Planar orientational structures of nonpolar molecules on a triangular lattice.

A second structure to consider is a synthetic nanowall structure consisting of a closely packed forest of CNTs patterned into walls, on a square, hexagonal or triangular lattice (Fig. 13.6) [35]. These also allow for emission site redundancy. They have the added advantage that they can accommodate the lateral ballast resistor between a current source and the emitting walls. 

Fig. 24. Contour plot of the structure factor (the kinematic LEED intensity) of a x y/i monolayer in a triangular lattice gas with nearest-neighbor repulsion, at a temperature k TIi = 0.355 (about 5% above T ) and a chemical potential // = 1.5 (0c = 0.336 at the transition temperature.) Contour increments are in a (common) logarithmic scale separated by 0.1, starting with 3.2 at the outermost contour. Center of the surface Brillouin zon is to the left k, and k the radial and azimuthal components of kH, are in units of nlXla, a being the lattice spacing. Data are based on averages over 2x10 Monte Carlo steps per site. (From Bartelt et...

Fig. 25. Structure factor integrated over 2.3% of the surface Brillouin zone (radius of 5 mesh lengths in Fig. 24) vs. TtoclesL plotted with the rescaled energy (crosses) for the J i x overlayer on the triangular lattice. Rescaling involves multiphc-ation by a negative number and shifting by a constant. Temperature is measured in units of

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