NO 

 TREATMENT 



T= 800°K V=0 



3 MINUTES 



T=300°K 



L=70/zA 

 Vs SECOND 



V = 7750 



, 1=70 fiA 

 1/5 SECOND 



V = 7370 



T = 1430° K V = 



5 MINUTES 



1 MINUTE 

 3 MINUTES 



T=300°K 



L = 70 JU.A 

 1/5 SECOND 



V = 7130 



T = 300° K 



L= 70 /^A 

 1/5 SECOND 



V=7320 



Fig. 11 — Effect of temperature and field on the agitation of clusters and the redistribu- 

 tion of Ba. At 800 to lOOO^K, Ba clusters are violently agitated near 211 and 111 planes 

 but relatively stationary near 100 planes. High fields cause Ba to migrate from 111 and 

 211 regions to 100 regions. 



931 



