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

From: Strain evolution of each type of grains in poly-crystalline (Ba,Sr)TiO3 thin films grown by sputtering

 

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

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