Table 1 Calculated cleavage energy (eV/Å2) for the (LaAlO3)n/(BaTiO3)n superlattices (n = 2.5 to 8.5) with the LaO/TiO2 and BaO/AlO2 interfaces.

From: Thickness Control of the Spin-Polarized Two-Dimensional Electron Gas in LaAlO3/BaTiO3 Superlattices

Systems

Cleavage energy (eV/Å2)

LaO/TiO2

BaO/AlO2

(LaAlO3)2.5/(BaTiO3)2.5

0.189

0.117

(LaAlO3)3.5/(BaTiO3)3.5

0.175

0.109

(LaAlO3)4.5/(BaTiO3)4.5

0.164

0.101

(LaAlO3)5.5/(BaTiO3)5.5

0.155

0.092

(LaAlO3)6.5/(BaTiO3)6.5

0.147

0.083

(LaAlO3)7.5/(BaTiO3)7.5

0.138

0.074

(LaAlO3)8.5/(BaTiO3)8.5

0.127

0.066