Herringbone structure

Notch tip With perpendicular grain orientation no notch tips are detected. The snapshots (see Fig. 7 second and third snapshot from top on the right) show that in the direction to the receiver there is a gap in the reflected / diffracted quasi shear wavefront. In contrast, the notch tips can be detected within the herringbone structure. 

This region has been divided into two subphases, L and S. The L phase differs from the L2 phase in the direction of tilt. Molecules tilt toward their nearest neighbors in L2 and toward next nearest neighbors in L (a smectic F phase). The S phase comprises the higher-ir and lower-T part of L2. This phase is characterized by smectic H or a tilted herringbone structure and there are two molecules (of different orientation) in the unit cell. Another phase having a different tilt direction, L, can appear between the L2 and L 2 phases. A new phase has been identified in the L 2 domain. It is probably a smectic L structure of different azimuthal tilt than L2 [185]. 

In Section 4.5, we discuss the optical properties of clusters formed by sexi-thienyl molecules adopting the herringbone structure characteristic of their crystal structure [34]. The theoretical results arc compared to corresponding experimental measurements. 

Schematic representation of carbon filaments of different structure produced by metal-catalyzed decomposition of methane, (a) Platelet structure, (b) "herringbone" structure, and (c) ribbon structure. MP denotes a nanosized metal particle.

Scheme 2 Four common packing motifs of the BEDT-TTF molecule. The black bars represent and end-on view of the molecule, looking down the long molecular axis. The a-phase, which is quite similar to the 0-phase, is characterized as a herringbone structure, the P -phase contains stacks of slipped dimers, the K-phase contains orthogonally arranged dimers, and the P"-phase is characterized by canted stacks of donor molecules...

The herringbone structures are particularly sensitive to local defects on the surface. Near a single atomic step, the herringbone structure is often terminated by U-shaped connections. 

By taking STM images of a smaller area, it was found that the spontaneous formation of ordered arrays of Ni islands is determined by the herringbone reconstruction of the Au(lll) surface. It is clear that the Ni islands locate at the elbows of the herringbone structure. A detailed study of the atomic-resolution STM image and the local atomic structure near the elbows indicates that at each vertex of the elbow, there is a dislocation. Energetically, the dislocation site is the most probable location for the nickel deposition to nucleate. 

Lin PC, Yang S (2007) Spontaneous formation of one-dimensional ripples in transit to highly ordered two-dimensional herringbone structures through sequential and unequal biaxial mechanical stretching. Appl Phys Lett 90 241903... 

The fabrication of staggered herringbone structures was also achieved by a highbrightness diode-pumped Nd YAG laser direct write method [118]. A PDMS... 

However, a number of other investigators have come to a different conclusion. They have proposed that a commensurate herringbone structure could be adopted if... 

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