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Sc:Ru:Fe:LiNbO₃ crystals were grown from congruent melt by using the Czochralski method. A series of LiNbO₃ crystals (Li/Nb = 48.6/51.4) with 0.1 wt% RuO₂, 0.06 wt% Fe₂O₃ and various concentrations of Sc₂0₃ were prepared. RF1 and RF4 refers to the samples containing 0 mol% Sc₂0₃ and 3 mol% Sc₂0₃, respectively. The photorefractive properties of RF4 were measured by <inline-formula><math display="inline"><semantics><mrow><msup><mrow><mi>Kr</mi></mrow><mo>+</mo></msup></mrow></semantics></math></inline-formula> laser (<i>λ</i> = 476 nm blue light): <i>η_s</i> = 75.7%, <i>τ_w</i> = 11 s, <i>M</i>/# = 19.52, <i>S</i> = 2.85 cmJ⁻¹, Γ = 31.8 cm⁻¹ and ∆<i>n_max</i> = 6.66 × 10⁻⁵. The photorefractive properties of five systems (<i>η_s</i>, <i>M</i>/#, <i>S</i>, Γ and ∆<i>n_max</i>) under 476 nm wavelength from RF1 to RF4 continually increased the response time, while <i>τ_w</i> was continually shortened. Comparing the photorefractive properties of Sc (1 mol%):Ru (0.1 wt%):Fe (0.06 wt%): LiNbO₃ measured by <inline-formula><math display="inline"><semantics><mrow><msup><mrow><mi>Kr</mi></mrow><mo>+</mo></msup></mrow></semantics></math></inline-formula> laser (<i>λ</i> = 476 nm blue light) with Sc (1 mol%):Fe (0.06 wt%):LiNbO₃ measured by He-Ne laser (633 nm red light), <i>η_s</i> increased by a factor of 1.9, <i>V_w</i> (response rate) increased by a factor of 13.9, <i>M</i>/# increased by a factor of 1.8 and S increased by a factor of 32. The ∆n_max improved by a factor of 1.4. A strong blue photorefraction was created by the two-center effect and the remarkable characteristic of being in phase between the two gratings recorded in shallow and deep trap centers. The photorefractive properties (<i>η_S</i>, <i>τ_w</i>, M/#, <i>S</i>, ∆<i>n_max</i>) were increased with an increase in Sc³⁺ ion concentration. Damage-resistant dopants such as Sc³⁺ ions were no longer resistant to damage, but they enhanced the photorefractive properties at the 476 nm wavelength. The experimental results clearly show that Sc-doped two-center Ru:Fe:LiNbO₃ crystal is a promising candidate blue photorefraction material for volume holographic storage. Sc-doped LiNbO₃ crystal can significantly enhance the blue photorefractive properties according to the experimental parameters. Therefore, the Sc:Ru:Fe:LiNbO₃ crystal has better photorefractive properties than the Ru:Fe:LiNbO₃ crystal.