The growth of multicomponent oxide single crystals by stepanov's technique

Ivleva, L. I.; Kuz'minov, Yu. S.; Осико, В. В.; Polozkov, N. M.

doi:10.1016/0022-0248(87)90182-5

Cited by 14 publications

(6 citation statements)

References 12 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The latter can deliver crystals widely free of striation, cracks, extraneous phase inclusions, or bubbles and of high optical quality (variation of refractive index per cm crystal length: ∆n = 1-2 × 10 −5 cm −1 ). For the present study, a nominally pure, i.e., undoped, SBN crystal was grown by the aforementioned modified Stepanov technique, which has been described earlier [23][24][25]. All starting materials were of 4 N or better purity.…”

Section: Crystal Growthmentioning

confidence: 99%

Photoconduction of Polar and Nonpolar Cuts of Undoped Sr0.61Ba0.39Nb2O6 Single Crystals

et al. 2021

View full text Add to dashboard Cite

In the last two decades, variably doped strontium barium niobate (SBN) has attracted a lot of scientific interest mainly due to its specific non-linear optical response. Comparably, the parental compound, i.e., undoped SBN, appears to be less studied so far. Here, two different cuts of single-crystalline nominally pure strontium barium niobate in the composition Sr0.61Ba0.39Nb2O6 (SBN61) are comprehensively studied and analyzed with regard to their photoconductive responses. We present conductance measurements under systematically varied illumination conditions along either the polar z-axis or perpendicular to it (x-cut). Apart from a pronounced photoconductance (PC) already under daylight and a large effect upon super-bandgap illumination in general, we observe (i) distinct spectral features when sweeping the excitation wavelength over the sub-bandgap region as then discussed in the context of deep and shallow trap states, (ii) extremely slow long-term relaxation for both light-on and light-off transients in the range of hours and days, (iii) a critical dependence of the photoresponse on the pre-illumination history of the sample, and (iv) a current–voltage hysteresis depending on both the illumination and the electrical-measurement conditions in a complex manner.

show abstract

Section: Crystal Growthmentioning

confidence: 99%

Photoconduction of Polar and Nonpolar Cuts of Undoped Sr0.61Ba0.39Nb2O6 Single Crystals

et al. 2021

View full text Add to dashboard Cite

show abstract

“…Miyazawa [51] grew relatively homogeneous Te-doped GaSb platelets by ''shaped melt lowering'', by pulling downwards. A capillary-controlled Czochralski/Stepanov method for growth of shaped crystals of Sr x Ba 1Àx Nb 2 O 6 of improved homogeneity was applied by Ivleva et al [52,53].…”

Section: Homogeneus Crystals With K Eff -1mentioning

confidence: 99%

Theoretical and technological solutions of the striation problem

Scheel

2006

Journal of Crystal Growth

View full text Add to dashboard Cite

“…[Borodin 1988, Bates 1992] Ca 3 (Nb,Ga) 2 Ga 3 O 12 [Voronkov 1988] Ca 3 VO 4 , Bi 12 SiO 20 , Bi 12 GeO 20 , Bi 4 Ge 3 O 12 , Nd 3 Ga 5 O 12 [Ivleva 1987] Ga 3 Gd 5 O 12 [Swartz 1974] GaAs [Egorov 1976] Gd 2 (MoO 4 ) 3 [Kurlov 1994] Ge , Kuznetsov 1980] Heavy metal halides [Dmitruk 1985, Dmitruk 1988 [Antonov 1990] NaNO 3 [Lin 1993] PbTe [Klimakow 1984] Rare earth orthovanadates [Kurlov 2005] Crystalline Si technology is clearly dominant in solar cell production today, with about 90% of the market, and will remain dominant for at least the next decade. Photovoltaics (PV) was and is the driving force for shaped Si crystal growth.…”

Section: Shaped S Imentioning

confidence: 99%