Zobrazeno 1 - 10
of 19
pro vyhledávání: '"N. Fanjat"'
Autor:
N. Fanjat
Publikováno v:
Nanoindustry Russia. :34-37
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2c2550fbc0be0bde55af231047d12924
https://doi.org/10.22184/1993-8578.2016.68.6.34.37
https://doi.org/10.22184/1993-8578.2016.68.6.34.37
Publikováno v:
Journal of Physics and Chemistry of Solids. 54:1515-1526
The quasielastic (QES) and the inelastic scattering (INS) observed in the neutron scattering spectra of polycrystalline Na 3 Cr 2 P 3 O 12 (noted NaCr) from 0.8 to 673 K is due to spin fluctuations. The QES of NaCr and NaFe were analyzed within de Ge
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::39249823b298a20e5694d0fe4431685b
https://doi.org/10.1016/0022-3697(93)90345-r
https://doi.org/10.1016/0022-3697(93)90345-r
Autor:
G Lucazeau, N Fanjat
Publikováno v:
Journal of Physics and Chemistry of Solids. 54:187-196
A model capable of reproducing the magnon excitations observable in the anti-ferromagnetic phase of Fe 2 Na 3 (PO 4 ) 3 is proposed. This model takes into account all the super-super-exchange interactions between the spins of the four Fe 3+ of the un
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b0107396629bcd5392b7e8dad0f3dac7
https://doi.org/10.1016/0022-3697(93)90307-d
https://doi.org/10.1016/0022-3697(93)90307-d
Publikováno v:
Journal of Physics and Chemistry of Solids. 53:395-403
The paramagnetic scattering of the title compounds (noted as NaFe and NaCr, respectively) has been studied by neutron scattering on the time of flight instrument IN6 at ILL. For NaFe the strong quasielasticity observed at 60,300 and 573 K is mainly L
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ae6cc1cfae693f7ce8ce728476b833a2
https://doi.org/10.1016/0022-3697(92)90174-c
https://doi.org/10.1016/0022-3697(92)90174-c
Publikováno v:
Physica B: Condensed Matter. :244-246
CdCr2S4 is a good representative of the few known Heisenberg 3D ferromagnets. We present here a complete study of its structural and magnetic properties as a function of temperature. We give a direct estimate of the magnetic coupling constants extrac
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3c996435ab959b1bb7b03c4a009f31b5
https://doi.org/10.1016/0921-4526(92)90722-5
https://doi.org/10.1016/0921-4526(92)90722-5
Autor:
N. Fanjat, Jean-Louis Soubeyroux
Publikováno v:
Journal of Magnetism and Magnetic Materials. :933-934
The nuclear and magnetic structures of Fe2Na 3(PO4)3 have been determined by powder neutron diffraction. We propose an antiferromagnetic structure with a magnetic moment of 2.9μB carried by the Fe3+ ions. We discuss the super-super-exchange interact
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f446320bfcdbbbd248365bdfda55b76b
https://doi.org/10.1016/0304-8853(92)90429-r
https://doi.org/10.1016/0304-8853(92)90429-r
Publikováno v:
Solid State Ionics. :1611-1616
The present study has been undertaken on a single crystal of Na + β-Al 2 O 3 . The quasi elastic signal in the −2, +2 meV range, for Q parallel to the sample conduction plane has been much improved compared with the powder data. Two incident wavel
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b7577acd1208db72df1efeca4172b1f4
https://doi.org/10.1016/0167-2738(88)90429-8
https://doi.org/10.1016/0167-2738(88)90429-8
Publikováno v:
Le Journal de Physique Colloques. 49:C8-199
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::682df080c9a16ea42d0d920cf96d427c
https://doi.org/10.1051/jphyscol:1988886
https://doi.org/10.1051/jphyscol:1988886
Publikováno v:
Physica B: Condensed Matter. :342-345
A single crystal of Naβ″ Al2O3 has been used to measure quasi-elastic neutron scattering spectra at 227 and 377°C. Fitted data are presented with a new model and the results are compared to those obtained with NaβAl2O3.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::73345f84597525c81afb3f4f33baebd0
https://doi.org/10.1016/0921-4526(89)90673-x
https://doi.org/10.1016/0921-4526(89)90673-x
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