Zobrazeno 1 - 10
of 1 656
pro vyhledávání: '"V, Caignaert"'
Publikováno v:
SciPost Physics Core, Vol 5, Iss 1, p 007 (2022)
We have investigated the magnetic structures of the Swedenborgite compound CaBaFe4O7 using magnetic susceptibility and neutron diffraction experiments on powder and single-crystal samples. Below TN1 = 274 K the system orders in a ferrimagnetic struct
Externí odkaz:
https://doaj.org/article/2e05da592d0548c8b85ef3453b1531c5
Akademický článek
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Autor:
Valerie Pralong, G. Van Tendeloo, Antoine Maignan, D. Pelloquin, V. Caignaert, Artem M. Abakumov, B. Raveau
Publikováno v:
Chemistry of materials
A new mixed-valence ferrite, YBaFe4O7, has been synthesized. Its unique cubic structure, with a = 8.9595(2) Å, is closely related to that of the hexagonal 114 oxides YBaCo4O7 and CaBaFe4O7. It consists of corner-sharing FeO4 tetrahedra, forming tria
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b619e8a9b9b0750bb53da570b053e54e
https://doi.org/10.1021/cm803312f
https://doi.org/10.1021/cm803312f
Autor:
C, Delacotte, F, Hüe, Y, Bréard, S, Hébert, O, Pérez, V, Caignaert, J M, Greneche, D, Pelloquin
Publikováno v:
Inorganic chemistry. 53(19)
An efficient synthesis route is proposed to obtain single phase powder ceramic of CaFe5O7. This complex structure can be described as an intergrowth between one CaFe2O4 unit and n = 3 slices of FeO Wüstite-type structure. A detailed structural study
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::4d383e1592cbd2ba48295ca9d7e362ea
https://pubmed.ncbi.nlm.nih.gov/25203604
https://pubmed.ncbi.nlm.nih.gov/25203604
Autor:
D.A.V. Griend, ., V. Caignaert, ., Poeppelmeier, Kenneth R., Y., Wang, V.P., Dravid, Azuma, Masaki, Takano, Mikio, Z., Hu, Z. Hu, Hu, J.D., Jorgensen
Publikováno v:
J. Am. Chem. Soc.. 121(No. 20):4787-4792
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=jairo_______::3a3d6a8ff2a56c6e675756c240a0538d
http://t2r2.star.titech.ac.jp/cgi-bin/publicationinfo.cgi?q_publication_content_number=CTT100630575
http://t2r2.star.titech.ac.jp/cgi-bin/publicationinfo.cgi?q_publication_content_number=CTT100630575
Akademický článek
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Autor:
V. Caignaert
Publikováno v:
Journal of Magnetism and Magnetic Materials. 166:117-123
The nuclear and magnetic structures of the oxygen deficient perovskite Sr 2 Mn 2 O 5 have been investigated by neutron powder diffraction. This compound crystallizes in orthorhombic space group Pbam with a ≈ √2 a p , b ≈ 2√2 a p and c ≈ a p
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7c4b5513be6cafbd1eb3c4a93c634f92
https://doi.org/10.1016/s0304-8853(96)00455-6
https://doi.org/10.1016/s0304-8853(96)00455-6
Publikováno v:
Physica B: Condensed Matter. 228:251-260
The mixed valent 1212-ferrite (Tl0.5Pb0.5)Sr3Fe2O8 has been characterized using powder neutron diffraction data collected at 1.5 and 293 K. The structure is confirmed to be close to that of the Tl-1212 superconductor (Tl0.5Pb0.5)Sr2CaCu2O7 but with n
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0233c1eb930c9503b543b16da96e7e9c
https://doi.org/10.1016/s0921-4526(96)00488-7
https://doi.org/10.1016/s0921-4526(96)00488-7
Publikováno v:
ChemInform. 24
Cristallisation dans Pnam avec a = 10,0451, b = 11,6905 et c = 3,40860 A, Z = 4; affinement jusqu'a R = 0,046. Le reseau appartient a la structure type CaFe 2 O 4 , il est construit a partir de rubans doubles d'octaedres TlO 6 partageant des aretes,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f78201d33cc7163e618d9aa3dfa1e478
https://doi.org/10.1002/chin.199303006
https://doi.org/10.1002/chin.199303006
Autor:
David R. Allan, E. Kaldis, J. Karpinski, V. Caignaert, R. J. Nelmes, B. Raveau, John Loveday, M. I. Mmahon
Publikováno v:
Ferroelectrics. 128:93-98
The results of studies of the pressure dependence of the structures of YBa2Cu4O8 and La1·85Sr0·15CuO4 are presented. Comparison with the changes observed on oxidation of YBa2Cu3O7-δ show that the large dTc/dp in YBa2Cu4O8 can be attributed to char
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9eb847b074c94df85bfd182cf63d4ef3
https://doi.org/10.1080/00150199208015073
https://doi.org/10.1080/00150199208015073