Table 4 Quadratic fit on the composition-dependence of the CL parameters (Eq. 3) in the whole position range of 20 mm for each sample.
Sample | \(p_H/p = 0\) | \(p_H/p = 0.05\) | \(p_H/p = 0.1\) | \(p_H/p = 0.2\) |
|---|---|---|---|---|
Parameter | \(\mathbf {(p_1,p_2,p_3)}\) parameters for \(\mathbf {y=p_1\cdot x^2+p_2\cdot x+p_3}\), \(\hbox {R}^2\) | |||
\(\varepsilon _1(\infty )\) | (− 0.53*, 1.83*, 0.43), 0.87 | (− 0.17*, − 0.99*, 0.88), 0.89 | (− 0.57*, 2.17*, 0.70), 0.89 | (− 1.19*, 0.25*, 0.68), 0.99 |
A (eV) | (0.16, − 3.76, 115.75), 0.94 | (0.04, − 0.77, 94.56), 0.76 | (0.11, − 2.17, 98.58), 0.68 | (0.16, − 3.25, 103.85), 0.85 |
\(\Gamma \) (eV) | (0.09*, 0.067, 2.70), 0.99 | (− 0.32*, 0.06, 2.93), 0.99 | (− 1.27*, 0.08, 2.99), 0.99 | (− 1.35*, 9.62*, 2.87), 0.99 |
\(\hbox {E}_0\) (eV) | (− 2.76*, 0.05, 3.67), 0.99 | (− 0.64*, 0.99*, 3.73), 0.98 | (1.67*, 0.02, 3.75), 0.908 | (− 1.71*, 0.03, 3.65), 0.81 |
\(\hbox {E}_g^{CL}\) (eV) | (− 0.30*, − 5.98*, 0.93), 0.99 | (0.17*, − 0.02, 1.15), 0.99 | (− 0.23*, − 0.02, 1.34), 0.99 | (− 0.32*, − 0.02, 1.43), 0.99 |
\(\hbox {E}_p\) (eV) | (4.39*, − 0.15, 1.99), 0.99 | (0.91*, − 0.05, 1.31), 0.99 | (2.80*, − 0.09, 1.50), 0.96 | (3.51*, − 0.11, 1.73), 0.98 |
\(\hbox {n}_{{CL}}\) @ 1.96 eV | (\({\mathbf {0}}\), 0.02, 4.69), 0.99 | (\({\mathbf {0}}\), 0.02, 4.69), 0.985 | (\({\mathbf {0}}\), 0.03, 4.43), 0.98 | (\({\mathbf {0}}\), 0.04, 4.19), 0.99 |
\(\hbox {k}_{{CL}}\) @ 1.96 eV | (\({\mathbf {0}}\), 0.05, 0.35), 0.98 | (\({\mathbf {0}}\), 0.05, 0.42), 0.99 | (\({\mathbf {0}}\), 0.06, 0.21), 0.99 | (\({\mathbf {0}}\), 0.06, 0.11), 0.99 |
\(\hbox {E}_g^TL\) (eV) | (0.52*, − 0.03, 1.15), 0.99 | (0.01*, − 0.02, 1.19), 0.99 | (0.03*, − 0.03, 1.39), 0.99 | (0.43*, − 0.04, 1.49), 0.99 |
\(\hbox {n}_{{TL}}\) @ 1.96 eV | (\({\mathbf {0}}\), 0.02, 4.68), 0.99 | (\({\mathbf {0}}\), 0.04, 4.37), 0.99 | (\({\mathbf {0}}\), 0.03, 4.40), 0.99 | (\({\mathbf {0}}\), 0.05, 4.17), 0.99 |
\(\hbox {k}_{{TL}}\) @ 1.96 eV | (\({\mathbf {0}}\), 0.04, 0.36), 0.97 | (\({\mathbf {0}}\), 0.05, 0.41), 0.99 | (\({\mathbf {0}}\), 0.05, 0.22), 0.99 | (\({\mathbf {0}}\), 0.05, 0.14), 0.99 |
