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  Nickel, N. H.; Geilert, K.: Monatomic hydrogen diffusion in β-Ga₂O₃. Applied Physics Letters 116 (2020), p. 242102/1-3

10.1063/5.0007134

Abstract:
The nature of hydrogen migration in b-Ga2O3 was investigated with respect to molecular or monatomic diffusion. For this purpose, b-Ga2O3 samples were grown by plasma-assisted pulsed laser deposition in which H and D were spatially separated. The samples were characterized using secondary-ion-mass spectrometry and hydrogen effusion measurements. The combination of these methods provides clear evidence for monatomic H and D diffusion in b-Ga2O3.