Zobrazeno 1 - 10
of 60
pro vyhledávání: '"Jacques Bossy"'
Publikováno v:
Physical Review B. 99
We present neutron scattering measurements of the phonon-roton and layer modes of liquid helium confined in 28 \AA{} diameter nanopores of FSM-16. The goal is to determine the energy, lifetime, and intensity of the modes as a function of temperature.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8c23d59bc346dad1ce12c762a316b7e3
https://doi.org/10.1103/physrevb.99.165425
https://doi.org/10.1103/physrevb.99.165425
Autor:
Robert Tournier, Jacques Bossy
Publikováno v:
Chemical Physics Letters
Chemical Physics Letters, Elsevier, 2016, 658, pp.282-286. ⟨10.1016/J.cplett.2016.06.070⟩
Chemical Physics Letters, Elsevier, 2016, 658, pp.282-286. ⟨10.1016/j.cplett.2016.06.070⟩
Chemical Physics Letters, Elsevier, 2016, 658, pp.282-286. ⟨10.1016/J.cplett.2016.06.070⟩
Chemical Physics Letters, Elsevier, 2016, 658, pp.282-286. ⟨10.1016/j.cplett.2016.06.070⟩
International audience; The specific heat of liquid helium confined under pressure in nanoporous material and the formation, in these conditions, of a glass phase accompanied by latent heat are known. These properties are in good agreement with a rec
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2c544454080a2721e69d67c9cb9045fe
https://hal.archives-ouvertes.fr/hal-02936790/file/1-s2.0-S0009261416304651-main.pdf
https://hal.archives-ouvertes.fr/hal-02936790/file/1-s2.0-S0009261416304651-main.pdf
Publikováno v:
Journal of Low Temperature Physics
Journal of Low Temperature Physics, Springer Verlag (Germany), 2008, 151, pp.1164. ⟨10.1007/s10909-008-9798-2⟩
Journal of Low Temperature Physics, Springer Verlag (Germany), 2008, 151, pp.1164. ⟨10.1007/s10909-008-9798-2⟩
We report high resolution measurements of lattice excitations of bcc solid 4He using inelastic neutron scattering. The resulting dispersion relations of the phonons agree well with Path Integral Monte Carlo Simulations which we carried out in paralle
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ad150943a04409a967664cf8c8139958
https://doi.org/10.1007/s10909-008-9798-2
https://doi.org/10.1007/s10909-008-9798-2
Publikováno v:
Physical Review B: Condensed Matter and Materials Physics (1998-2015)
Physical Review B: Condensed Matter and Materials Physics (1998-2015), American Physical Society, 2015, 91 (9), pp.094201. ⟨10.1103/PhysRevB.91.094201⟩
Physical Review B: Condensed Matter and Materials Physics (1998-2015), American Physical Society, 2015, 91 (9), pp.094201. ⟨10.1103/PhysRevB.91.094201⟩
International audience
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7c76bcf3604f6c97dd8f4e09f5c4c669
https://hal.archives-ouvertes.fr/hal-01763367
https://hal.archives-ouvertes.fr/hal-01763367
Publikováno v:
Journal of Low Temperature Physics. 138:31-36
We present neutron scattering measurements of the phonon-roton excitations of superfluid 4He at negative pressures in the porous medium MCM-41. The phonon and maxon energies decrease systematically below bulk values as the density is decreased below
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::da36c89f7e9c559480d17a91da8a8a39
https://doi.org/10.1007/s10909-005-1523-9
https://doi.org/10.1007/s10909-005-1523-9
Publikováno v:
Physica B: Condensed Matter. :371-374
In a classical cubic crystal with one atom per unit cell, the only allowed excitations are three acoustic phonon branches. Recently, it was predicted that in a quantum crystal another optic-like excitation branch can exist. This additional excitation
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6a30177c6a44e165a943117679dad719
https://doi.org/10.1016/s0921-4526(02)02119-1
https://doi.org/10.1016/s0921-4526(02)02119-1
Autor:
Steven G. Lipson, Tuvy Markovich, M J Bull, Mark Harris, Emmanuel Farhi, Emil Polturak, Jacques Bossy
Publikováno v:
Journal of Low Temperature Physics. 129:65-77
We report inelastic neutron scattering studies of the [110] transverse phonon branches of bcc 4He near the bcc-hcp transitions on the solid-liquid coexistence line and near the melting transition. The question behind the experiment was whether these
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9001f22c2cb4aa26dd72b21882016ac9
https://doi.org/10.1023/a:1020097302352
https://doi.org/10.1023/a:1020097302352
Autor:
Henry R. Glyde, Junko Taniguchi, Douglas L. Abernathy, Norbert Mulders, Jacques Bossy, Masaru Suzuki, Richard Azuah, Souleymane Diallo
Publikováno v:
Physical Review Letters
Physical Review Letters, American Physical Society, 2014, 113 (21), pp.215302. ⟨10.1103/PhysRevLett.113.215302⟩
Physical Review Letters, American Physical Society, 2014, 113 (21), pp.215302. ⟨10.1103/PhysRevLett.113.215302⟩
There are two renowned theories of superfluidity in liquid (4)He, quite different and each with specific domains of application. In the first, the Landau theory, superflow follows from the existence of a well-defined collective mode supported by dens
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::37d54cbb47a6c5a5077c7092e07f4598
https://doi.org/10.1103/physrevlett.113.215302
https://doi.org/10.1103/physrevlett.113.215302
Autor:
Yvan Sidis, Gaston Collin, Jacques Bossy, P. Gautier-Picard, D. L. Millius, P. Bourges, Bernhard Keimer, Bernard Hennion, L. P. Regnault, H. F. Fong, Alexandre Ivanov, Ilhan A. Aksay
Publikováno v:
Physical Review Letters. 84:5900-5903
The influence of magnetic ( $S\phantom{\rule{0ex}{0ex}}=\phantom{\rule{0ex}{0ex}}1$) and nonmagnetic ( $S\phantom{\rule{0ex}{0ex}}=\phantom{\rule{0ex}{0ex}}0$) impurities on the spin dynamics of an optimally doped high temperature superconductor is c
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1fd56f56948a4e7fbf0cd65667aa7c70
https://doi.org/10.1103/physrevlett.84.5900
https://doi.org/10.1103/physrevlett.84.5900
Autor:
David L. Milius, P. Bourges, Jacques Bossy, Alexandre Ivanov, L. P. Regnault, Yvan Sidis, Bernhard Keimer, H. F. Fong, Ilhan A. Aksay
Publikováno v:
Physical Review B. 61:14773-14786
We report a comprehensive polarized and unpolarized neutron scattering study of the evolution of the dynamical spin susceptibility with temperature and doping in three underdoped single crystals of the \YBCO{6+x} high temperature superconductor: \YBC
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b87388e2c7b226952da19e21c87f5255
https://doi.org/10.1103/physrevb.61.14773
https://doi.org/10.1103/physrevb.61.14773