Photo-Induced Phenomena in Bi^sub 4-x^ La ^sub x^ Ti^sub 3^O^sub 12

Two photo-induced phenomena have been newly discovered in Bi...La...Ti...O... (BLT0.41). One of them is "photo-darkening phenomenon (PD)"; the laser illuminated area turns black below T = 390...C, where the wavelength of the laser is 514.5 nm. The other is "photo-erasable memory pheno...

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Bibliographic Details
Published in:Ferroelectrics 2012-01, Vol.429 (1), p.103
Main Authors: Yanagisawa, Tomori, Tsujimi, Yuhji, Iwata, Makoto
Format: Article
Language:English
Subjects:
Chemical compounds
Ions
Lasers
Optics
Temperature effects
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Summary:Two photo-induced phenomena have been newly discovered in Bi...La...Ti...O... (BLT0.41). One of them is "photo-darkening phenomenon (PD)"; the laser illuminated area turns black below T = 390...C, where the wavelength of the laser is 514.5 nm. The other is "photo-erasable memory phenomenon (PEM)"; the blackened area produced by the PD becomes transparent when the same laser is illuminated on the other area where is d = 80 ...m away from the blackened area. The PEM is found to occur in the temperature range between 230...C and 390...C in case of d = 80 ...m and in the distance range of d
ISSN:0015-0193
1563-5112