Zobrazeno 1 - 10
of 68
pro vyhledávání: '"J Derouet"'
Publikováno v:
Journal of Solid State Chemistry. 177:1437-1443
Na2CoP2O7 is found in two allotropic forms. The first one is rose and belongs to the triclinic crystallographic system. The second one is blue and described in the orthorhombic system, space group Pna21, No. 33, with cell parameters a=15.378(6) A, b=
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5752b64154ae6af01e99eeaecc90bdf5
https://doi.org/10.1016/j.jssc.2003.11.028
https://doi.org/10.1016/j.jssc.2003.11.028
Publikováno v:
Journal of Luminescence. 104:161-173
Among the fluorides disclosed in the AMF 3 –InF 3 systems (A=K, Rb, Cs/M=Mg, Zn), the most favorable material for optical applications in relation with the optical quality of its crystals is K 0.38 Mg 0.38 In 0.62 F 3 (KMI), a distorted monoclinic
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::411465dc92d00d386336fd1adc48e387
https://doi.org/10.1016/s0022-2313(03)00013-9
https://doi.org/10.1016/s0022-2313(03)00013-9
Publikováno v:
Optical Materials. 22:107-115
Three Yb3+-doped scandium based materials are elaborated and their optical properties investigated. Scandium materials exhibit large energy levels splitting and favorable thermal properties. The energy level diagrams for Yb:CaSc2O4, Yb:SrSc2O4, and Y
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6386e1548b18c539c1a5ae2b73e63d32
https://doi.org/10.1016/s0925-3467(02)00354-3
https://doi.org/10.1016/s0925-3467(02)00354-3
Publikováno v:
Solid State Sciences. 4:1039-1043
The paramagnetic susceptibility of polycrystalline hexagonal neodymium oxyfluoride, NdOF, shows an anomalous evolution as a function of temperature. To explain the anomalies, the crystal structure of NdOF was studied between 1.5 and 300 K by neutron
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::96e45ab3e25c4559ec7848621f59c74d
https://doi.org/10.1016/s1293-2558(02)01361-4
https://doi.org/10.1016/s1293-2558(02)01361-4
Publikováno v:
Journal of Solid State Chemistry. 165:228-237
The optical properties of Ln 2 Ti 2 S 2 O 5 compounds ( Ln =Nd, Sm, Gd, Tb, Dy, Ho, Er, and Y) have been measured. Diffuse reflectance spectra revealed a strong absorption band above 2 eV, which explains the color of the compounds. Moreover, other ba
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4948d22e4d48ca8d657e35bc7ec82546
https://doi.org/10.1006/jssc.2002.9492
https://doi.org/10.1006/jssc.2002.9492
Autor:
A. de Kozak, F. Bourée-Vigneron, Bruno Viana, P. Aschehoug, Patrick Gredin, J. Derouet, Angélique Pierrard, Daniel Vivien
Publikováno v:
physica status solidi (b). 226:329-338
The crystal structure of the fluoride KLa 2 F 7 was refined at 10 K by the Rietveld method using neutron powder diffraction data. KLa 2 F 7 is cubic, a = 5.918(1) A, space group Fm3m. The structure derives from that of an anion excess fluorite-type c
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d12882436c467a68117f3e38c1ccccd6
https://doi.org/10.1002/1521-3951(200108)226:2<329::aid-pssb329>3.0.co
https://doi.org/10.1002/1521-3951(200108)226:2<329::aid-pssb329>3.0.co
Publikováno v:
Journal of Alloys and Compounds. :460-467
The optical absorption spectra of neodymium at 4 K are reproduced with a very good agreement between calculation and experiment (15 −1 ). The wavefunctions which are obtained as a result of the energy calculation can be used to compute other physic
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::80177273bef60b785d6405b61c1262aa
https://doi.org/10.1016/s0925-8388(01)01126-4
https://doi.org/10.1016/s0925-8388(01)01126-4
Publikováno v:
Journal of Alloys and Compounds. :242-253
The optical (energy level scheme) and magnetic properties (paramagnetic susceptibility as a function of temperature and g values) of Co 2+ in a Cs 2 ZnCl 4 single crystal were reproduced simultaneously according to the crystal field theory involving
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6e3574e4f821ffe579263824acb65fba
https://doi.org/10.1016/s0925-8388(99)00778-1
https://doi.org/10.1016/s0925-8388(99)00778-1
Publikováno v:
Ultrasonics Sonochemistry. 7:25-33
Different kind of materials, as powders, were submitted to ultrasound after mixing in water, dodecane or dilute acetic acid (5%). After treatment, firstly a decrease of particle size, and secondly the formation of unexpected and unknown compounds was
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::42e185fc76e02e0321fef29072828d16
https://doi.org/10.1016/s1350-4177(99)00024-3
https://doi.org/10.1016/s1350-4177(99)00024-3
Autor:
L. Beaury, A. El Jazouli, J. Derouet, R. Olazcuaga, G. Le Flem, A.El Bouari, Pierre Porcher, J. M. Dance
Publikováno v:
Journal of Solid State Chemistry. 143:230-238
The optical (energy level scheme) and magnetic properties (paramagnetic susceptibility as a function of the temperature and g values) of the polycrystalline Co 0.5 Ti 2 (PO 4 ) 3 were simultaneously reproduced by use of a crystal field theory involvi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e0870e750640c6bd9db0f99456ce6537
https://doi.org/10.1006/jssc.1998.8098
https://doi.org/10.1006/jssc.1998.8098