Light-induced properties of Ru-doped Bi₁₂TiO₂₀crystals

Conductivity mechanism analysis at high temperature in bismuth titanate: A single crystal with sillenite-type structure

“…These values are very similar to the E a calculated from conductivity data, which are in the range 0.99-1.06 eV. 6,14 Such level of accordance between E , E aZ Љ , and E aM Љ indicates actuating of a single electronic conduction mechanism. Both 0 values derived from Z Љ and M Љ parameters are of the order of 10 −13 -10 −14 s being compatible with phenomenon correlated to the defect lattice vibration frequency.…”

Особенности электропереноса в структуре фоторефрактивного легированного кристалла Bi-=SUB=-12-=/SUB=-TiO-=SUB=-20-=/SUB=-:Ru

“…Легирование синтезированных образцов осуществлялось путем внесения в исходный раствор оксида RuO 2 [6]. Для экспериментальных исследований использовались отполированные пластинки размером 7 × 6 × 3, параллельные грани (100).…”

Two-color nonvolatile holographic recording in Bridgman-grown Ru:LiNbO3 crystals

“…The photochromic effects caused by the Ru doping in the NLO crystals such as Bi 12 SiO 20 , Bi 12 TiO 20 , Bi 4 Ge 3 O 12 and Sr 0.61 Ba 0.39 Nb 2 O 6 have been observed and reported [6][7][8][9]11]. The photochromism of Ru:LiNbO 3 was first reported by Fujimura et al [13], and the three-valence state of Ru ion was considered as a possible origin of the photochromism.…”

“…The doping of Ru ions has been proven to be useful to improve the photorefractive properties of many nonlinear optical (NLO) crystals such as Bi 12 SiO 20 [6], Bi 12 TiO 20 [7,8], Bi 4 Ge 3 O 12 [9], BaTiO 3 [10], Sr 0.61 Ba 0.39 Nb 2 O 6 [11] and KNbO 3 [12]. Recently, nonvolatile holographic recording at a wavelength of 632.8 nm in Ru: LiNbO 3 crystals has been investigated [13].…”