Zobrazeno 1 - 10 of 96 pro vyhledávání: '"C. Jeandey"'
1
Chemical state of a supported iron–cobalt catalyst during co disproportionation
Autor: C. Jeandey, P. Gadelle, J.P. Pinheiro, J.L. Oddou
Publikováno v: Journal of Physics and Chemistry of Solids. 62:1023-1037
X-ray diffraction and Mossbauer spectroscopy have been used to investigate the chemical state of a supported iron–cobalt catalyst during the disproportionation of carbon monoxide at 800 K. The results of this study have demonstrated a strong implic
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::05bb8f01d9694ec1543240e64d261b4a
https://doi.org/10.1016/s0022-3697(00)00270-5
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2
A Mössbauer study of the intermetallic compound
Autor: Jean Rebizant, J.C. Spirlet, F. Wastin, J L Oddou, C. Jeandey, J. P. Sanchez
Publikováno v: Journal of Physics: Condensed Matter. 8:4259-4268
An extensive Mossbauer study of the new compound is reported. This material reveals only a purely axially symmetric quadrupole interaction down to 4.2 K, and its isomer shift suggests the occurrence of a charge state. A careful analysis of the intens
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::77157ccaaa3a3e8ce0a09cae2179881f
https://doi.org/10.1088/0953-8984/8/23/017
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3
Revisited magnetic properties of NpAl3: Comparison with other cubic AuCu3-type actinide compounds
Autor: Eric Ressouche, C. Jeandey, P. Burlet, R.R. Arons, J.C. Spirlet, J. Larroque, Eric Colineau, J. L. Oddou, A. Blaise, J. P. Sanchez, Jean Rebizant
Publikováno v: Journal of Magnetism and Magnetic Materials. 135:183-190
The magnetic properties of polycrystalline samples of NpAl 3 , having the cubic AuCu 3 -type structure, have been re-examined by neutron diffraction and 237 Np Mossbauer measurements. They show that, contrary to earlier data (ferromagnetic order at 6
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::c149c04c76ce891d2dadf5984c1e8b14
https://doi.org/10.1016/0304-8853(94)90344-1
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4
A new 280 MHz ESR spectrometer
Autor: D. Dijret, M. Beranger, C. Jeandey, A. Bernerd, M. Moussavi
Publikováno v: Journal de Chimie Physique. 91:1862-1867
Nous decrivons un nouveau spectrometre continu a 0.01 Tesla. Sa sensibilite mesuree est de 3.4.10 17 spins. T 1 . Des spectres obtenus avec des radicaux en solution ou a l'etat solide ainsi que quelques applications en mesure d'oxygene sont presentes
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::eafcd85814cf7871ff383e6ca51c28c5
https://doi.org/10.1051/jcp/1994911862
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5
A new family of actinide ternary intermetallic compounds
Autor: J.L. Oddoue, Daniel Meyer, C. Jeandey, M. N. Peron, J.C. Spirlet, Y. Kergadallan, J.M. Winand, S. Zwirner, Jean Rebizant, J.P. Sanchez, Eric Colineau, G.M. Kalvius, Heinz Nakotte, Ladislav Havela
Publikováno v: Journal of Alloys and Compounds. 201:203-208
We have prepared an extended group of compounds of the general formula An 2 T 2 X (AnU, Np; T Ni, Co, Rh, Pd, Pt, Ir; XIn, Sn), which crystallize in the tetragonal structure (U 3 Si 2 type). The lattice parameters and atomic positions were d
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::d647fea89f168079c8aa10cde4a3f5fd
https://doi.org/10.1016/0925-8388(93)90885-q
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6
Mössbauer investigation of the peculiar magnetism of Tb(Mn1−xFex)2 at small substitution of Fe for Mn
Autor: C. Jeandey, J.L. Oddou, Bachir Ouladdiaf, Rafik Ballou, J. Deportes
Publikováno v: Solid State Communications. 85:419-422
Mossbauer experiments have been performed on the Tb(Mn 0.96 Fe 0.04 ) 2 intermetallic compound from liquid nitrogen temperature down to liquid helium temperature. Above 34 K, the obtained spectra are interpreted in a two sites model with populations
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::5a15c678daebe5a6a6ddf5f309c341f9
https://doi.org/10.1016/0038-1098(93)90692-g
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8
Mössbauer investigation of amorphous FexSi100−x/Si multilayered films
Autor: Ch. Aron, C. Jeandey, P. Auric
Publikováno v: Journal of Magnetism and Magnetic Materials. 115:223-229
Mossbauer spectra recorded at T = 300 and 4 K with an applied magnetic field up to 8 T were analyzed with a full Hamiltonian, assuming a non-magnetic contribution and a hyperfine field distribution for the magnetic iron atoms. The mean hyperfine fiel
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::eaa26e08f6f503944fcbdcc0af816579
https://doi.org/10.1016/0304-8853(92)90061-r
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9
Oxygen concentration measurements using the ESR line modification of PcLi molecules
Autor: C. Jeandey, D. Duret, M. Beranger, M. Moussavi
Publikováno v: Sensors and Actuators B: Chemical. 6:266-269
The lithium phthalocyanine radical PcLi is a molecular semiconductor exhibiting an extremely narrow ESR line. The influence of oxygen on the linewidth is attributed to the free circulation of paramagnetic dioxygen molecules inside the crystal structu
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::9f2fa67d5e422a244cba1ef66672988a
https://doi.org/10.1016/0925-4005(92)80067-8
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10
Magnetic properties of sputtered amorphous FexSi100−x/Si multilayers
Autor: Ch. Aron, P. Auric, C. Jeandey
Publikováno v: Solid State Communications. 79:217-221
Amorphous Fe x Si 100−x /Si multilayers were prepared by a dc-triode sputtering system. The thickness of the Fe x Si 100−x layer ( d FeSi ) ranged from 10 to 120 A, while the Si layer thickness ( d Si ) was fixed at d Si =0.5 d FeSi . The magneti
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::c960d21f16edb7ce41691e3ae7bb8837
https://doi.org/10.1016/0038-1098(91)90637-b
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