Table 2 Gruneisen parameter of different modes at Brillouin Zone center.

From: Thermal Conductivity of Wurtzite Zinc-Oxide from First-Principles Lattice Dynamics – a Comparative Study with Gallium Nitride

Modes

Frequency (cm−1)

this work

Experimenta

E1 (LO)

557

1.5

1.4

E2 high

445

2.0

2.0

E1 (TO)

411

2.1

1.8

A1 (TO)

393

2.1

2.1

E2 low

89

−2.3

−1.6

  1. aRef. 36.
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