Switch experiment

The first result of the trap-switch experiment (see Figure 3b) is the loss of signal occurring when the trap-switch is after the test chirp excitations. The decrease in signal around the time of the excitation indicates that ion loss occurred in the z-direction as a result of the excitation. 

Fig. 7. Magnetic field-counter arrangement in a magnetic switching experiment [Eq. (3.25)]...

In principle, the dependence of on temperature can be determined by conducting the same isotope switching experiment at different temperatures. In practice, this approach is limited by the narrow temperature range that can be used. As the temperature increases, the FWHM of the desorption transient rapidly becomes comparable to or shorter... 

The results of these condensed-phase switching experiments provide us with the impetus to incorporate the bistable [2]catenane 4" into solid-state electronic devices. In collaboration with members of the Heath group in the California NanoSystems Institute (CNSI) here at UCLA, the [2]catenane 4 4DMPA was introducedfirst of all into two-terminal devices to form molecular switch tunnel junctions (MSTJs) in which each MSTJ functions as an electronically reconfig-... 

Let the fiber direction coincide with z, as shown in Fig. 1. An external field applied perpendicular to the fibers (e.g., along the y-axis) creates a conflict between the aligning tendencies of the fiber array and of the field see Fig. 5 (a). Note that switching experiments are usually... 

The central region of Fig. (7) shows the development of the systems under the pull of an external potential, which is instantaneously rotated perpendicular to the initial director the chains spread, assuming a disordered transient configuration. Finally, in the last part of the simulated switching experiment the system reaches a new equilibrium state, almost completely aligned to the external field. A more pictorial view of this behavior is given in Fig. (8), which shows snapshots of the time evolution of the system at selected times. 

Reaction with O2 can be rapid and irreversible. Therefore switching experiments must be performed in the absence of oxygen dissolved in the electrolytic medium. 

Nematic Side-Chain Liquid-Crystalline Polymer in a Switching Experiment... 

Spectroelectrochemical and switching experiments were performed with polymer coated on ITO and mounted within a 1 cm quartz cuvette. The cuvette was also fitted with a platinum wire counter electrode and silver wire pseudoreference electrode. Sufficient electrolyte solution, THF or CHCI3 with 0.1 M TBAH, was then added to the cell in order to make good contact with all electrodes and fully flood the spectrometer light path. 

A solid state, long term optical switching experiment was conducted using ITO coated glass as the substrate and THF/O.IM TBAH as the electrolyte (i.e., same experimental set-up as was used for spectral studies) in order to evaluate the stability of the films to withstand repeated bleach-colour cycling. Polymer 5 was the only material (studied here) to form films stable toward dissolution over the full length of the experiment. Given this, the film ( 0.5 micron in thickness) of polymer 5 on ITO was cycled between -200 mV and 600 mV (i.e., switched electrochemically between the Ru /Ru and Ru /Ru states). The... 

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