Zobrazeno 1 - 10
of 42
pro vyhledávání: '"T. Badeche"'
Publikováno v:
Ferroelectrics. 376:17-24
PbK 2 LiNb 5 O 15 belongs to the family of tungsten bronze compounds. It attracts attention because it exhibits a ferroelectric phase at room temperature, and undergoes in the neighbourhood of 650 ...
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::747b90c3b500f4d76845b434e4bfaa62
https://doi.org/10.1080/00150190802440690
https://doi.org/10.1080/00150190802440690
Publikováno v:
Ferroelectrics. 371:17-20
Ionic conduction is evidenced in PbK2LiNb5O15 single crystal using electric impedance measurements. The phase transition is of first order type and it occurs around 640 K as evidenced by a discontinuity accompanied by a hysteresis of about 10 K, and
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fe7345fcab83d54ab6e5d0412b6d7bfe
https://doi.org/10.1080/00150190802384930
https://doi.org/10.1080/00150190802384930
Publikováno v:
Ferroelectrics. 290:83-90
We present a HREM study performed on PbK 2 LiNb 5 O 15 at room temperature where the compound presents a ferroelectric and ferroelastic phase. The results display ferroelastic domains and the quality of images allows the use of CRISP software which p
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::99846e3748a3426da79909fc4ee504ab
https://doi.org/10.1080/00150190390222312
https://doi.org/10.1080/00150190390222312
Publikováno v:
Ferroelectrics. 269:279-284
This work presents X-ray diffraction results on the f - g first order phase transition in FePO 4 . An intermediate phase appears in a temperature range that corresponds to the excess of heat capacity previously attributed to a modulated phase. By mea
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4292e00294aea9ab06843872a601375d
https://doi.org/10.1080/00150190211135
https://doi.org/10.1080/00150190211135
Autor:
Yaovi Gagou, T. Badeche, Pierre Saint-Grégoire, N. Aliouane, Daoud Mezzane, M. Elaatmani, M-h Pischedda
Publikováno v:
Ferroelectrics. 254:197-204
We present dielectric studies carried out on PbK2LiNb5O15 exhibiting its ferroelectric behaviour: the real part of dielectric constant follows a Curie law, with Tc = 639 K and a Curie constant 1.5x105 K. The structural change involves a first order p
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0420f1ec5b214da21e5311aa6c28d6c7
https://doi.org/10.1080/00150190108215000
https://doi.org/10.1080/00150190108215000
Publikováno v:
Le Journal de Physique IV. :Pr1-51
Superconducting wires are prepared by coating of a silver substrate, by sintering of a slurry deposited onto the metal core and containing a grinded (Pb doped) Bi-2223 ceramic, a grinded Bi-2223/Bi-2212 mixed ceramic or a grinded mixture of the Bi-22
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8f8c641b04aae69b0fb74c06e6a21c3e
https://doi.org/10.1051/jp4:1998108
https://doi.org/10.1051/jp4:1998108
Autor:
N. E. Hussey, W. S. Seow, R. A. Doyle, T. Badeche, L. Fermond, Ian R. Fisher, O. Monnereau, C. D. Dewhurst, A.M. Ghorayeb
Publikováno v:
Molecular Crystals and Liquid Crystals Science and Technology. Section A. Molecular Crystals and Liquid Crystals. 311:435-442
In this work we report on the intercalation of single crystals of Bi 2 Sr 2 CaCu 2 O 8 with iodine to form the stage-1 intercalated complex IBi 2 Sr 2 CaCu 2 O 8 , and on the electrical resistivity of this final product, both as a function of tempera
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::603fe3886fe00439aadb250ce0e46ab6
https://doi.org/10.1080/10587259808042422
https://doi.org/10.1080/10587259808042422
Publikováno v:
Key Engineering Materials. :413-428
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::32cf8c548cc234e42f5e76747e1fe1e1
https://doi.org/10.4028/www.scientific.net/kem.155-156.413
https://doi.org/10.4028/www.scientific.net/kem.155-156.413
Publikováno v:
Journal of Physics and Chemistry of Solids. 58:821-827
Bi2Sr2CaCu2O8 crystal growth has been made by slow cooling of samples, completely or partially melted in gold crucibles. All 2212 growth experiments have been made under air atmosphere, using presynthetized ceramics as starting materials. A study car
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::907ff7ac05b03673038011620dd35b35
https://doi.org/10.1016/s0022-3697(96)00078-9
https://doi.org/10.1016/s0022-3697(96)00078-9
Reduced resistivity-anisotropy ratio in Bi2Sr2CaCu2O8 singl crystals showing zero resistance at 97 K
Publikováno v:
Physica C: Superconductivity. 241:10-16
In this article, we report resistivity results on single crystals of Bi-2212 with a composition very close to the standard one and with a Sr/Ca ratio close to 2. We confirm the metallic temperature dependence of ϱ c that has been recently noted by o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d17abfa090d6e3c2d90406b0ea63e954
https://doi.org/10.1016/0921-4534(94)00626-1
https://doi.org/10.1016/0921-4534(94)00626-1