Zobrazeno 1 - 10
of 51
pro vyhledávání: '"Ch. Power"'
Publikováno v:
physica status solidi (b). 253:1195-1201
A combined study of the X-ray powder diffraction, differential thermal analysis, optical absorption, and Raman spectroscopy of the high-temperature modification of Cu2ZnGeTe4 quaternary semiconductor, obtained by fast quenching from 820 K to ice wate
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::523e2c2b22504c42213a4d77d8995491
https://doi.org/10.1002/pssb.201552782
https://doi.org/10.1002/pssb.201552782
Autor:
O. Contreras, Alejandro Rodríguez, Humberto Cabrera, Jennifer A. Aitken, M. Salas, Miguel Quintero, Inti Zumeta-Dubé, Ch. Power, Werner Brämer-Escamilla, Pedro Grima-Gallardo
Publikováno v:
Journal of Alloys and Compounds. 658:749-756
Polycrystalline samples of Cu3NbSe4 and Cu3TaSe4 were obtained by the melt and anneal technique. X-ray diffraction patterns show that both materials are single phase and crystallize in the P 4 ¯ 3 m (215) space group. Thermal transitions were obtain
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6b7bf354c9dea546bcf4ee266d170233
https://doi.org/10.1016/j.jallcom.2015.10.283
https://doi.org/10.1016/j.jallcom.2015.10.283
Autor:
Ch. Power, E. Moreno, C. Rincón, Miguel Quintero, Mario A. Macías, José A. Henao, E. Quintero
Publikováno v:
Superlattices and Microstructures. 88:99-103
Raman spectrum of Cu2CdSnSe4 quaternary semiconductor compounds with tetragonal stannite-type structure (space group I 4 ¯ 2m), a material which has been recognized recently as a potential candidate for thermoelectric applications, has been studied.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3eacab6b82296947e4f155db19c0b0f1
https://doi.org/10.1016/j.spmi.2015.08.032
https://doi.org/10.1016/j.spmi.2015.08.032
Autor:
E. Moreno, E. Quintero, D. Rivero, Ch. Power, C. Rincón, Miguel Quintero, Mario A. Macías, José A. Henao
Publikováno v:
physica status solidi (b). 253:335-339
A study of the Raman spectra and X-ray diffraction on Cu2MnGeS4 magnetic quaternary semiconductor compound with wurtz-stannite-type structure (space group Pmn21) has been done. By considering group theory analysis and by comparing the Raman lines wit
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::94c2bbf44ffedab192de9ad2d9f495b3
https://doi.org/10.1002/pssb.201552351
https://doi.org/10.1002/pssb.201552351
Autor:
P. Grima-Gallardo, Humberto Cabrera, Miguel Quintero, Werner Braemer-Escamilla, Inti Zumeta-Dubé, M. Salas, Jennifer A. Aitken, Ch. Power, O. Contreras, Alejandro Rodríguez
Publikováno v:
ChemInform. 47
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::44e0dd99e91dbefe8d0c6600c8d0669b
https://doi.org/10.1002/chin.201610004
https://doi.org/10.1002/chin.201610004
Publikováno v:
Materials Science and Engineering: B. 177:1465-1469
Using single-crystal X-ray diffraction and Raman spectroscopy, the characterization of a member of the II-IV-V 2 family of semiconducting compounds, ZnSiP 2 , is presented in this work. The diffraction experiment showed that ZnSiP 2 crystallizes in a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::822746c47c60fb02d799e0b43203faee
https://doi.org/10.1016/j.mseb.2011.12.046
https://doi.org/10.1016/j.mseb.2011.12.046
Autor:
Manuel Morocoima, C. Rincón, E. Moreno, José A. Henao, Ch. Power, E. Quintero, Gerzon E. Delgado, Rafael Tovar, Mario A. Macías, M. Quintero
Publikováno v:
Solid State Communications. 151:947-951
In an attempt to resolve the crystal structure and the corresponding space group of the magnetic semiconductor Cu2FeSnS4, samples of this compound were studied by X-ray diffraction, differential thermal analysis, Raman scattering and magnetic suscept
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::817e05d0c9421cc8bf4947398c437a65
https://doi.org/10.1016/j.ssc.2011.04.002
https://doi.org/10.1016/j.ssc.2011.04.002
Publikováno v:
Solid State Communications. 151:451-455
The optical phonon spectrum of the semiconductor Cu2SnTe3, that crystallizes in the orthorhombic structure with space group Imm2 ( C 2 v 20 ), have been studied by measuring unpolarized Raman scattering between 10 and 300 K. The experimental frequenc
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f1fbe810289c58926a60dc4b7787d91a
https://doi.org/10.1016/j.ssc.2010.12.038
https://doi.org/10.1016/j.ssc.2010.12.038
Quantum dots of Cd0.5Mn0.5Te semimagnetic semiconductor formed by the cold isostatic pressure method
Autor:
Etienne Snoeck, O. Contreras, Manuel Morocoima, J. González, J. M. Broto, E. Quintero, V. Muñoz-San José, Miguel Quintero, Rafael Tovar, Ch. Power
Publikováno v:
Journal of Magnetism and Magnetic Materials. 294:e77-e81
Cd0.5Mn0.5Te is a semimagnetic semiconductor, which crystallizes in the zinc-blende structure (ZB) and exhibits a magnetic spin glass like transition at 21 K. Under pressure it shows a first-order phase transition around 2.6 GPa to the NaCl like stru
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::21c1ef90daed4c6063fc09a82d9d0f59
https://doi.org/10.1016/j.jmmm.2005.03.058
https://doi.org/10.1016/j.jmmm.2005.03.058
Autor:
J. González, V. Muñoz-San José, Ch. Power, Etienne Snoeck, D. Martinez-Garcia, Miguel Quintero, J. M. Broto, E. Calderón, Gérard Hamel, O. Contreras, Jean-Claude Chervin
Publikováno v:
High Pressure Research. 25:119-135
II–VI and II1−x Mn x VI nanocrystals were prepared by the pressure cycle method using the Paris–Edinburgh cell. The recovered samples are nanocrystals in the cubic phase zinc-blend (ZB) structure and were characterized using transmission electr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b1bda7c626c844c5a922a5cd531e0ab1
https://doi.org/10.1080/08957950500155413
https://doi.org/10.1080/08957950500155413