High-pressure synthesis of the electron-excess compound CaSi6
The binary phase CaSi6 is prepared at a pressure of 10(1) GPa and a temperature of 1520(150) K. X-ray single-crystal structure refinements and powder diffraction data of quenched samples reveal that the compound crystallizes in the orthorhombic crystal system (space group Cmcm, a=4.4953(5) Å, b=10.0...
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| Format: | Article |
| Language: | English |
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Taylor & Francis Group
2007-01-01
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| Series: | Science and Technology of Advanced Materials |
| Online Access: | http://www.iop.org/EJ/abstract/1468-6996/8/5/A09 |
| _version_ | 1811336231660814336 |
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| author | Aron Wosylus, Yurii Prots, Ulrich Burkhardt, Walter Schnelle and Ulrich Schwarz |
| author_facet | Aron Wosylus, Yurii Prots, Ulrich Burkhardt, Walter Schnelle and Ulrich Schwarz |
| author_sort | Aron Wosylus, Yurii Prots, Ulrich Burkhardt, Walter Schnelle and Ulrich Schwarz |
| collection | DOAJ |
| description | The binary phase CaSi6 is prepared at a pressure of 10(1) GPa and a temperature of 1520(150) K. X-ray single-crystal structure refinements and powder diffraction data of quenched samples reveal that the compound crystallizes in the orthorhombic crystal system (space group Cmcm, a=4.4953(5) Å, b=10.078(1) Å, c=11.469(1) Å). At ambient pressure, exothermic decomposition into CaSi2 and Si at 737(5) K indicates that the compound is a metastable high-pressure phase. Physical property measurements reveal that the new hexasilicide is diamagnetic and a bad metallic conductor, with resistivity ρapprox900 μΩ cm at 300 K. |
| first_indexed | 2024-04-13T17:35:29Z |
| format | Article |
| id | doaj.art-dd09338f06064848acd0d880abf9d75d |
| institution | Directory Open Access Journal |
| issn | 1468-6996 1878-5514 |
| language | English |
| last_indexed | 2024-04-13T17:35:29Z |
| publishDate | 2007-01-01 |
| publisher | Taylor & Francis Group |
| record_format | Article |
| series | Science and Technology of Advanced Materials |
| spelling | doaj.art-dd09338f06064848acd0d880abf9d75d2022-12-22T02:37:22ZengTaylor & Francis GroupScience and Technology of Advanced Materials1468-69961878-55142007-01-0185383High-pressure synthesis of the electron-excess compound CaSi6Aron Wosylus, Yurii Prots, Ulrich Burkhardt, Walter Schnelle and Ulrich SchwarzThe binary phase CaSi6 is prepared at a pressure of 10(1) GPa and a temperature of 1520(150) K. X-ray single-crystal structure refinements and powder diffraction data of quenched samples reveal that the compound crystallizes in the orthorhombic crystal system (space group Cmcm, a=4.4953(5) Å, b=10.078(1) Å, c=11.469(1) Å). At ambient pressure, exothermic decomposition into CaSi2 and Si at 737(5) K indicates that the compound is a metastable high-pressure phase. Physical property measurements reveal that the new hexasilicide is diamagnetic and a bad metallic conductor, with resistivity ρapprox900 μΩ cm at 300 K.http://www.iop.org/EJ/abstract/1468-6996/8/5/A09 |
| spellingShingle | Aron Wosylus, Yurii Prots, Ulrich Burkhardt, Walter Schnelle and Ulrich Schwarz High-pressure synthesis of the electron-excess compound CaSi6 Science and Technology of Advanced Materials |
| title | High-pressure synthesis of the electron-excess compound CaSi6 |
| title_full | High-pressure synthesis of the electron-excess compound CaSi6 |
| title_fullStr | High-pressure synthesis of the electron-excess compound CaSi6 |
| title_full_unstemmed | High-pressure synthesis of the electron-excess compound CaSi6 |
| title_short | High-pressure synthesis of the electron-excess compound CaSi6 |
| title_sort | high pressure synthesis of the electron excess compound casi6 |
| url | http://www.iop.org/EJ/abstract/1468-6996/8/5/A09 |
| work_keys_str_mv | AT aronwosylusyuriiprotsulrichburkhardtwalterschnelleandulrichschwarz highpressuresynthesisoftheelectronexcesscompoundcasi6 |