In:
Japanese Journal of Applied Physics, IOP Publishing, Vol. 38, No. 5B ( 1999-05-01), p. L574-
Abstract:
Ferroelectric barium strontium titanate (BST) thin films were grown on Pt/Ta 2 O 5 /SiO 2 /Si
by sputtering Ba 0.66 Sr 0.34 TiO 3 targets containing different amounts of excess SrO. It was found
that the excess SrO in the target strongly influenced the microstructures and pyroelectric properties of the BST films. Compared with the BST film grown using a target without excess
SrO, BST films grown using targets containing excess SrO of 0.02–0.04 by molar fraction showed larger grains and higher tendency to grow along (200) orientation, resulting in better
pyroelectric characteristics at ambient temperatures. We obtained BST films with a considerably high pyroelectric coefficient of 240 nC·cm -2 ·K -1 .
Type of Medium:
Online Resource
ISSN:
0021-4922
,
1347-4065
DOI:
10.1143/JJAP.38.L574
Language:
Unknown
Publisher:
IOP Publishing
Publication Date:
1999
detail.hit.zdb_id:
218223-3
detail.hit.zdb_id:
797294-5
detail.hit.zdb_id:
2006801-3
detail.hit.zdb_id:
797295-7
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