Photoluminescence Charateristics of SrTiO3:Pr3+,Ga3+ Single Crystal

2000 ◽  
Vol 621 ◽  
Author(s):  
Jaedong Byun ◽  
Yongjei Lee ◽  
Boyun Jang ◽  
Youngmoon Yu ◽  
Sunyoun Ryou ◽  
...  
Keyword(s):  
Emission Band ◽  
Charge Compensation ◽  
Floating Zone ◽  
Zone Method ◽  
Floating Zone Method ◽  
Co Doping ◽  
Hole Trapping ◽  
Trapping Effect ◽  
Co Doped ◽  
Considerable Enhancement

ABSTRACTSrTiO3 crystals containing varying concentrations of Pr and Ga were grown by a standard floating zone method and their photoluminescence characteristics were investigated. It was found that only a small fraction of Pr ions added are incorporated in the lattice. When the Ga ions are co-doped, the solubility of Pr ions is increased considerably. Comparing the ionic sizes of the host and dopants, it seems that the increase of solubility of Pr by Ga co-doping is due to charge compensation achieved by the additional Ga3+. The addition of Ga in Pr - activated SrTiO3 resulted also in a considerable enhancement of Pr3+ emission band at 615 nm. This result is attributed to the hole trapping effect of Ga3+ ions.

Defect Optical and Scintillation Properties of Lu2Si2O7:Ce Single Crystal Grown by Floating Zone Method

2013 ◽  
Vol 28 (8) ◽  
pp. 891-895
Author(s):  
He FENG ◽  
Guo-Hao REN ◽  
Dong-Zhou DING ◽  
Huan-Ying LI ◽  
Jun XU ◽  
...  
Keyword(s):  
Single Crystal ◽  
Floating Zone ◽  
Zone Method ◽  
Floating Zone Method

Photoluminescence, scintillation and thermoluminescence properties of Ce-doped SrLaAl3O7 crystals synthesized by the optical floating zone method

2021 ◽  
Vol 112 ◽  
pp. 110782
Author(s):  
Kenta Igashira ◽  
Daisuke Nakauchi ◽  
Takumi Kato ◽  
Noriaki Kawaguchi ◽  
Takayuki Yanagida
Keyword(s):  
Floating Zone ◽  
Zone Method ◽  
Floating Zone Method

scholarly journals Single-Crystal Growth of Sr2RuO4 by the Floating-Zone Method Using an Infrared Image Furnace with Improved Halogen Lamps

Crystals ◽  
2021 ◽  
Vol 11 (4) ◽  
pp. 392
Author(s):  
Naoki Kikugawa ◽  
Dmitry A. Sokolov ◽  
Tohru Nagasawa ◽  
Andrew P. Mackenzie
Keyword(s):  
Crystal Growth ◽  
Single Crystal ◽  
Infrared Image ◽  
Single Crystal Growth ◽  
Molten Zone ◽  
Floating Zone ◽  
Unconventional Superconductor ◽  
Zone Method ◽  
Floating Zone Method ◽  
Halogen Lamps

We report the single-crystal growth of the unconventional superconductor Sr2RuO4, on which research has reached a turning point recently. In order to optimize the quality of crystals grown by the floating-zone method using an infrared image furnace, we focus on an improvement of the structure of the filament in the halogen lamps. By reducing the thickness of the total filament, the form of the molten zone was narrowed. More importantly, the molten zone was observed to be more stable during the growth process. Finally, we obtained the crystals with a length of 12 cm. Additionally, the grown crystal has high quality, displaying the 1.5 K transition temperature expected only for the purest crystals. We also discuss the availability of the newly developed halogen lamps.

scholarly journals Hall Effects of Rutile Crystals Grown by the Floating Zone Method

1991 ◽  
Vol 32 (9) ◽  
pp. 879-881 ◽  
Author(s):  
Shin Tsunekawa ◽  
Hiroshi Machida ◽  
Masashi Suezawa ◽  
Tsuguo Fukuda
Keyword(s):  
Floating Zone ◽  
Zone Method ◽  
Floating Zone Method ◽  
Hall Effects

The growth of barium tetratitanate (BaTi4O9) single crystals by the floating zone method

1986 ◽  
Vol 76 (2) ◽  
pp. 311-316 ◽  
Author(s):  
Isao Tanaka ◽  
Hironao Kojima ◽  
Fumiaki Sudo
Keyword(s):  
Single Crystals ◽  
Floating Zone ◽  
Zone Method ◽  
Floating Zone Method

The growth of tapiolite (FeTa2O6) single crystals by the floating zone method

1985 ◽  
Vol 73 (1) ◽  
pp. 175-178 ◽  
Author(s):  
Isao Tanaka ◽  
Hiroshi Kanai ◽  
Hironao Kojima
Keyword(s):  
Single Crystals ◽  
Floating Zone ◽  
Zone Method ◽  
Floating Zone Method
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