Table 2. Comparison between the calculated and experimental Poisson's ratio for the cases of 29.6-nm- and 155.8-nm-thick (Ba,Sr)TiO₃ films grown at 505°C.

	ε0/σ0	εz/σ0	−εz/ε0
	Calc. (10−12 m2/N)		Calc.	Meas. (at 29.6 nm)	Meas. (155.8 nm)
[002]	4.047	−3.439	0.850	0.942	0.942
[110]	3.240	−1.824	0.563	0.454	0.454
[111]	2.971	−1.286	0.433	0.342	0.342