High-quality needle-like CuTaS3 single crystals have been synthesized through a chemical vapor transport（CVT） process.Crystallographic data show the special double chains of edge-sharing TaS6 octahedra.The detailed ...High-quality needle-like CuTaS3 single crystals have been synthesized through a chemical vapor transport（CVT） process.Crystallographic data show the special double chains of edge-sharing TaS6 octahedra.The detailed XPS analysis of CuTaS3 was undertaken and the valence states can be described by Cu＋Ta5＋3S2-.In addition,CuTaS3 crystals were characterized with Raman spectroscopy.展开更多
High pressure synthesis of solid material tends to increase the density, coordination number, symmetry of material and shorten bond length. The solid synthesized at a high pressure and decompressed to ambient pressure...High pressure synthesis of solid material tends to increase the density, coordination number, symmetry of material and shorten bond length. The solid synthesized at a high pressure and decompressed to ambient pressure often exhibits a meta- stable ＂stretched＂ state, within the high pressure stability field. The crystal grown at a high pressure is of great importance with the development of high pressure technology. Crystal growth is an important factor in the material synthesis. And many me- thods including gas, solid and solution methods have been used to obtain various single crystalstl]. Especially, flux method is an important method for crystal growth, where the components of the desired substance dissolved in a solvent（flux） grow in the process of deposit.展开更多
基金Supported by the National Natural Science Foundation of China(Nos.20471022, 40673051 and 20121103)the Program for New Century Excellent Talents(NCET) in Universities of China
文摘High-quality needle-like CuTaS3 single crystals have been synthesized through a chemical vapor transport（CVT） process.Crystallographic data show the special double chains of edge-sharing TaS6 octahedra.The detailed XPS analysis of CuTaS3 was undertaken and the valence states can be described by Cu＋Ta5＋3S2-.In addition,CuTaS3 crystals were characterized with Raman spectroscopy.
基金Supported by the National Natural Science Foundation of China（No.21271082） and the Development of Science and Tech- nology Plan of Jilin Province, China（No.20110341）.
文摘High pressure synthesis of solid material tends to increase the density, coordination number, symmetry of material and shorten bond length. The solid synthesized at a high pressure and decompressed to ambient pressure often exhibits a meta- stable ＂stretched＂ state, within the high pressure stability field. The crystal grown at a high pressure is of great importance with the development of high pressure technology. Crystal growth is an important factor in the material synthesis. And many me- thods including gas, solid and solution methods have been used to obtain various single crystalstl]. Especially, flux method is an important method for crystal growth, where the components of the desired substance dissolved in a solvent（flux） grow in the process of deposit.
