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Partial Switching Behavior in Ferroelectric Triglycine Sulfate

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1 Author(s)
Taylor, G.W. ; RCA Laboratories, Radio Corporation of America, Princeton, New Jersey

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Experimental techniques were developed for measuring t*, the threshold time for stable partial switching in ferroelectrics. Measurements made on triglycine sulfate showed that t* decreases with temperature and applied field, and increases slightly with crystal thickness. Also the ratio of t* to ts, the total switching time, was found to increase sharply with grinding of the crystal surface. The transition in the partial switching properties at t* was observed to be sharp rather than absolute. The t* results seem to be explained satisfactorily by the Fatuzzo‐Merz three‐stage switching model of surface nucleation, followed by forward and then by sidewise growth. If this interpretation is accepted, then the results indicate that t* is the natural division between forward and sidewise growth. If this is correct, then t* measurements can be used for calculating forward and sidewise wall velocities.

Published in:

Journal of Applied Physics  (Volume:37 ,  Issue: 2 )