Band Structure and Refractive Index of Gallium Nitride Under Pressure |
| P. Perlin, I. Gorczyca, T. Suski, H. Teisseyre, I. Grzegory High Pressure Research Center, Polish Academy of Sciences, SokoĊowska 29/37, 01-142 Warszawa, Poland and N.E. Christensen Institute of Physics, Aarhus University, Aarhus, Denmark |
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| The effect of hydrostatic pressure on direct gap and refractive index of GaN is investigated up to 5.5 GPa. Band structure of GaN is calculated by Linear Muffin-Tin Orbitals (LMTO) method for different values of pressure. Resulting pressure coefficient of the main gap and of the refractive index are in a good agreement with the experimental ones. |
| DOI: 10.12693/APhysPolA.80.421 PACS numbers: 71.25.Tn, 78.20.Ci |