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Table 1 Ground state structural parameters for wurtzite ZnO, rutile SnO2, and rocksalt MgO obtained with different approximations for the exchange-correlation potential in comparison to low-temperature experimental data

From: Self-Consistent Hybrid Functional Calculations: Implications for Structural, Electronic, and Optical Properties of Oxide Semiconductors

ZnO

GGA

PBE0

scPBE0

Exp.

a [Å]

3.289

3.258

3.255

3.248 [20]

c [Å]

5.308

5.236

5.230

5.204 [20]

u

0.381

0.381

0.381

0.382 [21]

ε

5.01

3.64

3.58

3.72 [22]

α

0.25

0.28

E gap [eV]

0.715

3.132

3.425

3.4449 [17]

SnO2

GGA

PBE0

scPBE0

Exp.

a [Å]

4.834

4.757

4.752

4.737 [23]

c [Å]

3.244

3.193

3.190

3.186 [23]

u

0.307

0.306

0.306

0.307 [23]

ε

4.71

3.76

3.72

3.92 [24]

α

0.25

0.27

E gap [eV]

0.609

3.591

3.827

3.596 [18]

MgO

GGA

PBE0

scPBE0

Exp.

a [Å]

4.260

4.211

4.193

4.199 [25]

ε

3.22

2.98

2.90

3.01 [26]

α

0.25

0.34

E gap [eV]

4.408

7.220

8.322

7.833 [19]

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