Zobrazeno 1 - 10
of 119
pro vyhledávání: '"Bernard, Hennion"'
Publikováno v:
Physical Review B. 94
The damping $(\mathrm{\ensuremath{\Gamma}}a)$ of the transverse acoustic (TA) phonon in single crystals of the relaxor $\mathrm{KT}{\mathrm{a}}_{1\ensuremath{-}x}\mathrm{N}{\mathrm{b}}_{x}{\mathrm{O}}_{3}$ with $x=0.15--0.17$ was studied by means of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::692e4995b804fa9cd6d9486e93e0d5e5
https://doi.org/10.1103/physrevb.94.214116
https://doi.org/10.1103/physrevb.94.214116
Autor:
Claude Coulon, Jean-Paul Pouget, Alec Moradpour, Sylvain Petit, Pascale Foury-Leylekian, Bernard Hennion
Publikováno v:
Physica B: Condensed Matter. 404:537-540
We present the first inelastic neutron scattering investigation of magnetic excitations in a one- dimensional (1D) organic conductor. This experiment is conducted in the spin-Peierls (SP) ground state of (TMTTF)2PF6. The study, performed with a 98% d
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::aac17607af0c7066776d2f2cf1ae566e
https://doi.org/10.1016/j.physb.2008.11.035
https://doi.org/10.1016/j.physb.2008.11.035
Publikováno v:
Journal of Alloys and Compounds. 423:172-175
Short-period Fe/Fe–N multilayers (with the nominal composition of Fe–N layer close to Fe 2 N) were deposited on (0 0 1)-oriented GaAs substrates at room temperature by a sputtering technique. Magnetic properties of these multilayers at room tempe
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::11280397a2854d699091fceb5c1736cc
https://doi.org/10.1016/j.jallcom.2006.01.091
https://doi.org/10.1016/j.jallcom.2006.01.091
Autor:
Bernard Hennion, Sylvain Ravy, D. Le Bolloc'h, Claude Coulon, Alec Moradpour, V. Cardoso, Jean-Paul Pouget, Pascale Foury-Leylekian
Publikováno v:
Journal of Low Temperature Physics. 142:147-152
(TMTTF)2X, with X=PF6, exhibits, at TSP, a spin-Peierls transition. Below TSP elastic neutron scattering measurements performed on large protonated and deuterated samples reveal the formation of very weak superstructure reflections at the (1/2,1/2,1/
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0545d31ecabed2ac119ed384b3088ac2
https://doi.org/10.1007/bf02679484
https://doi.org/10.1007/bf02679484
Publikováno v:
physica status solidi c. 3:151-154
Within the program of our systematic studies of magnetic excitations of manganese alloys the inelastic neutron scattering in FCC Mn(37%Fe,3%Cu) was measured for the temperature range 1.7–600 K. This alloy has the FCC crystal structure both in param
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::12c3aab6f44616640d6bdf12f6e3e801
https://doi.org/10.1002/pssc.200562429
https://doi.org/10.1002/pssc.200562429
Publikováno v:
physica status solidi (c). 2:1141-1146
Single crystals of hexagonal MnTe (in NiAs structure) have been grown by the physical vapour transport method and investigated by neutron scattering techniques. Lattice parameters and magnetic intensity of Bragg peaks characteristic of the antiferrom
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::749bdfe172166c087f1922d23c82e25d
https://doi.org/10.1002/pssc.200460669
https://doi.org/10.1002/pssc.200460669
Publikováno v:
Physica B: Condensed Matter. 350:E75-E78
Low-energy magnetic excitations at the special point of the magnetic Brillouin zone (MBZ) boundary, crystallographically equivalent to the MBZ-centre, were found in the Mn (18% Cu) alloy in our earlier study. Here, the magnetic excitations are invest
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::305e222a2786c3a27b75508557744dd7
https://doi.org/10.1016/j.physb.2004.03.021
https://doi.org/10.1016/j.physb.2004.03.021
Publikováno v:
Review of Scientific Instruments. 74:3717-3721
An easy-to-build and comparatively inexpensive high-temperature graphite tube furnace has been designed, fabricated, and tested for measuring physical properties of silicate melts with dynamic neutron radiography up to temperatures of 2300 K. This fu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::724402d097595caf6875cc9782631b54
https://doi.org/10.1063/1.1592878
https://doi.org/10.1063/1.1592878
Publikováno v:
Journal of Non-Newtonian Fluid Mechanics. 112:203-215
The applicability of the often employed Faxen correction function for viscosity measurements of silicate melts at high temperatures with the falling sphere method has been investigated. Dynamic neutron radiography was used for the in situ and real ti
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::52b2c9d4743a8b68b5e50db6965bf6db
https://doi.org/10.1016/s0377-0257(03)00098-3
https://doi.org/10.1016/s0377-0257(03)00098-3
Autor:
Bernard Hennion, Ph. Bourges
Publikováno v:
Neutron News. 14:13-16
Two thermal triple-axis spectrometers (TAS) are in use in the reactor hall of Orphee. These instruments are the suc-cessors of a French TAS of the old EL3 reactor and of a TAS coming from Karlsruhe, and managed by a German group. Both spectrometers,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b08a2ccc71388f0db7140c8a832c982e
https://doi.org/10.1080/10448630308229340
https://doi.org/10.1080/10448630308229340