Organic Crystal Growth: Directly from Amorphous Solid Powder to Single Crystal

2021 ◽  
Author(s):  
Siyu Chen ◽  
Lin Zhu ◽  
Bingwen Zhang ◽  
Shu-Na Yun ◽  
Jinyi Wang ◽  
...  
Keyword(s):  
Crystal Growth ◽  
Single Crystal ◽  
Amorphous Solid ◽  
Organic Crystal

Single Crystal Growth of High-Pressure Phases of Ice and Salt Hydrate Far Below the Original Melting Point by Mixing Alcohol: Crystal Structure Determination of Magnesium Chloride Heptahydrate

2020 ◽  
Author(s):  
Keishiro Yamashita ◽  
Kazuki Komatsu ◽  
Hiroyuki Kagi
Keyword(s):  
Crystal Structure ◽  
High Pressure ◽  
Crystal Growth ◽  
Single Crystal ◽  
Room Temperature ◽  
Growth Technique ◽  
Salt Hydrate ◽  
X Ray

An crystal-growth technique for single crystal x-ray structure analysis of high-pressure forms of hydrogen-bonded crystals is proposed. We used alcohol mixture (methanol: ethanol = 4:1 in volumetric ratio), which is a widely used pressure transmitting medium, inhibiting the nucleation and growth of unwanted crystals. In this paper, two kinds of single crystals which have not been obtained using a conventional experimental technique were obtained using this technique: ice VI at 1.99 GPa and MgCl<sub>2</sub>·7H<sub>2</sub>O at 2.50 GPa at room temperature. Here we first report the crystal structure of MgCl2·7H2O. This technique simultaneously meets the requirement of hydrostaticity for high-pressure experiments and has feasibility for further in-situ measurements.

Unsteady 3D and analytical analysis of segregation process in floating zone silicon single crystal growth

2009 ◽  
Vol 45 (4) ◽  
pp. 549-556 ◽  
Author(s):  
K. Lācis ◽  
◽  
A. Muižnieks ◽  
N. Jēkabsons ◽  
A. Rudevičs ◽  
...  
Keyword(s):  
Crystal Growth ◽  
Single Crystal ◽  
Single Crystal Growth ◽  
Silicon Single Crystal ◽  
Floating Zone ◽  
Analytical Analysis ◽  
Segregation Process

scholarly journals Epitaxial Single‐Crystal Growth of Transition Metal Dichalcogenide Monolayers via the Atomic Sawtooth Au Surface

2021 ◽  
pp. 2006601
Author(s):  
Soo Ho Choi ◽  
Hyung‐Jin Kim ◽  
Bumsub Song ◽  
Yong In Kim ◽  
Gyeongtak Han ◽  
...  
Keyword(s):  
Crystal Growth ◽  
Transition Metal ◽  
Single Crystal ◽  
Single Crystal Growth ◽  
Transition Metal Dichalcogenide

scholarly journals Single Crystal Growth and Physical Properties of Pyroxene CoGeO3

Crystals ◽  
2021 ◽  
Vol 11 (4) ◽  
pp. 378
Author(s):  
Li Zhao ◽  
Zhiwei Hu ◽  
Hanjie Guo ◽  
Christoph Geibel ◽  
Hong-Ji Lin ◽  
...  
Keyword(s):  
High Pressure ◽  
Magnetic Properties ◽  
Magnetic Susceptibility ◽  
Crystal Growth ◽  
Physical Properties ◽  
Single Crystal ◽  
Single Crystals ◽  
Magnetic Moments ◽  
Single Crystal Growth ◽  
The Impact

We report on the synthesis and physical properties of cm-sized CoGeO3 single crystals grown in a high pressure mirror furnace at pressures of 80 bar. Direction dependent magnetic susceptibility measurements on our single crystals reveal highly anisotropic magnetic properties that we attribute to the impact of strong single ion anisotropy appearing in this system with TN∼33.5 K. Furthermore, we observe effective magnetic moments that are exceeding the spin only values of the Co ions, which reveals the presence of sizable orbital moments in CoGeO3.

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.

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