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. 2019 Sep 19;9(51):29726–29733. doi: 10.1039/c9ra05014k

Optical parameters of HfB2 layer extracted using SE by employing Tauc–Lorentz oscillator model.

Parameters Value
The energy band gap Eg 0.101
The peak in the joint density of states E0 4.526
The high frequency dielectric constant ε 1.479
The optical transition matrix elements A 5.260
Broadening factor C −3.815