Medium range ordering of local polarizations in Pb(Mg1/3Nb2/3)O3

Local ordering of simple organic liquids in the nanometre range

X-ray scattering experiments with simple organic liquids (aldehydes, alcohols and acids) have revealed that these substances, in addition to the usual short-range ordering, also exhibit longer-range correlations that extend into the nanometre range. To gain insight into the structure of such liquids, we performed configurational bias Monte Carlo (CBMC) simulations utilizing the TraPPE-UA force ...

Fluctuation microscopy studies of medium-range ordering in amorphous diamond-like carbon films

In this letter, we report fluctuation microscopy studies of medium-range ordering in amorphous diamond-like carbon films and the effect of annealing on this ordering. Annealed and unannealed diamond-like carbon films have almost identical short-range order. Our fluctuation microscopy results, however, indicate the presence of medium range order or clustering in the films on a lateral length sca...

A novel medium access control protocol for optical local networks based on data request ordering

The basic aim of the scheduling algorithms in wavelength division multiplexing (WDM) single-hop optical networks is to construct a short schedule, in order to support quick communication between the nodes of the network. A design of medium access control (MAC) protocol without collisions is introduced for scheduling variable-length data packets based on a broadcast and select architecture. The ...

Long-range ordering of vibrated polar disks.

Vibrated polar disks have been used experimentally to investigate collective motion of driven particles, where fully ordered asymptotic regimes could not be reached. Here we present a model reproducing quantitatively the single, binary, and collective properties of this granular system. Using system sizes not accessible in the laboratory, we show in silico that true long-range order is possible...

Local structure and medium-range ordering in relaxor ferroelectric Pb„Zn1/3Nb2/3...O3 studied using neutron pair distribution function analysis