| http://www.w3.org/ns/prov#value | - More specifically described, preparation of precursor solutions for the thin ferroelectric film include: dissolving a starting material such as an alkoxide or a salt of each of the metals constituting the thin ferroelectric film into a suitable solvent, for example, an organic solvent such as hexane and 2-ethylhexanate; optionally heating to a temperature of about 100 to 120??? C. for promoting th
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