Table 1 Lattice parameters of DHBA and Hdabco-ReO\(_4\). The “EXP0” column lists the 0-K extrapolated values obtained by linear regression analyses on the X-ray diffraction results. Values in parenthesis represent deviations from the EXP0 values (as a percentage).

From: A straightforward method using the sign of the piezoelectric coefficient to identify the ferroelectric switching mechanism

 

DHBA

Hdabco-ReO\(_4\)

EXP0

cx

rVV10

EXP0

cx

rVV10

a (Å)

4.8719

4.7990 (−1.5)

4.8414 (−0.6)

10.049

10.279 (\(+\)2.3)

10.008 (−0.4)

b (Å)

11.801

11.974 (\(+\)1.5)

11.859 (\(+\)0.5)

8.685

9.036 (\(+\)4.0)

8.827 (\(+\)1.6)

c (Å)

10.910

11.339 (\(+\)3.9)

10.809 (−0.9)

5.3108

5.3013 (−0.2)

5.3325 (\(+\)0.4)

\(\beta (^{\circ }\))

91.514

91.966

91.702

89.94

89.801

90.051