Table 1 Incompressibility parameter and bulk modulus of the SDD-GaSe film and GaSe bulk extracted from the inverted Birch-Murnaghan EoS.

From: Pressure induced structural phase crossover of a GaSe epilayer grown under screw dislocation driven mode and its phase recovery

Sample

In-plane incompressibility (GPa)

Out-of-plane incompressibility (GPa)

Bulk modulus (GPa)

Investigated pressure range

K0a

K’0a

K0c

K’0c

B0

B’0

GaSe film

186 ± 4

10.8 ± 0.6

164 ± 3

4.2 ± 0.4

60 ± 1

2.6 ± 0.2

0–35 GPa

GaSe bulk

188 ± 6

9.3 ± 1

40.5 ± 0.7

20.6 ± 0.2

35.5 ± 1

5.1 ± 0.2

0–40 GPa

Ref.29

198 ± 10

9 ± 2

44 ± 2

18.7 ± 7

34 ± 2

6.4 ± 5

0–39 GPa

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