Growth and PhysioChemical Properties of Second-Order Nonlinear Optical L-Threonine Single Crystals

Table 9

Linear and volume expansion coefficients of unirradiated and electron irradiated L-threonine single crystals at 12×10¹⁴ e/cm².

Expansion coefficient in K^−1	Unirradiated	Irradiated
𝛼3	40.64 × 10^−6	42.94 × 10^−6
𝛼2	30.85 × 10^−6	41.58 × 10^−6
𝛼1	19.44 × 10^−6	24.93 × 10^−6
𝛼𝑉	90.96 × 10^−6	109.45 × 10^−6