Synthesis of new Ga7Ge3Te11—One-dimensional phase in Ga–Ge–Te ternary system: Crystal structure and physical properties
| Autor: | Cestmir Drasar, Ivana Cisarova, Jan Prokleška, V. Kucek, Marie Kratochvílová, Ludvík Beneš |
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| Rok vydání: | 2015 |
| Předmět: |
Diffraction
Materials science Ternary numeral system Cell volume chemistry.chemical_element Crystal structure Condensed Matter Physics Electronic Optical and Magnetic Materials Inorganic Chemistry Crystallography symbols.namesake Temperature gradient chemistry Phase (matter) Materials Chemistry Ceramics and Composites symbols Physical and Theoretical Chemistry van der Waals force Tellurium |
| Zdroj: | Journal of Solid State Chemistry. 222:90-95 |
| ISSN: | 0022-4596 |
| Popis: | Ga7Ge3Te11 single crystals were grown using transport in a temperature gradient. The prepared single crystals have a needle-like appearance, 1 to 40 μm in diameter and 2 to 20 mm in length. The Ga7Ge3Te11 single crystals were characterized by both single crystalline and powder X-ray diffraction. The structure consists of one-dimensional molecular strings bonded together through tellurium atoms by a weak bond of the van der Waals type. A large unit cell volume indicates the complexity of the structure. The room temperature theoretical density is 5.73 g cm−3. The compound shows semiconducting properties and possesses peculiar magnetic properties. |
| Databáze: | OpenAIRE |
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