Zobrazeno 1 - 10
of 86
pro vyhledávání: '"Gaston Collin"'
Autor:
Bastien, Loret, Anne, Forget, Jean-Baptiste, Moussy, Sylvie, Poissonnet, Patrick, Bonnaillie, Gaston, Collin, Pierre, Thuéry, Alain, Sacuto, Dorothée, Colson
Publikováno v:
Inorganic chemistry. 56(16)
We report an original procedure for the elaboration of very high-quality single crystals of superconducting HgBa
Autor:
N. Blanchard, A. V. Savinkov, Julien Bobroff, Gaston Collin, Philippe Mendels, A. V. Dooglav, Henri Alloul
Publikováno v:
JETP Letters. 91:83-90
Incidence of doped holes in the CuO2 plane on the AF state was studied by Cu(1) nuclear quadrupole resonance (NQR) in slightly doped YBa2(Cu1 − zLiz)3O6 + x compounds. Inhomogeneous distribution of doped holes in the plane was detected in the low t
Autor:
Henri Alloul, Anthony A. Amato, G. Lang, Dorothée Colson, Julien Bobroff, Fabrice Bert, Adrian D. Hillier, Gaston Collin, D. Bono, I. R. Mukhamedshin, N. Blanchard, Philippe Mendels
Publikováno v:
Physica B: Condensed Matter. :278-281
Using muon spin rotation, well-defined bulk ∼ 100 % magnetic phases in Na x CoO 2 are revealed. A novel magnetic phase is detected for x = 0.85 with the highest transition temperature ever observed for x ⩾ 0.75 . This stresses the diversity of x
Autor:
C. Baines, D. Bono, Fabrice Bert, Adrian D. Hillier, N. Blanchard, Gaston Collin, Philippe Mendels, Anthony A. Amato
Publikováno v:
Physica B: Condensed Matter. :138-141
A μ SR study of the spin dynamics of the archetypes of the highly frustrated magnets, SrCr 9 p Ga 12 - 9 p O 19 and Ba 2 Sn 2 ZnGa 10 - 7 p Cr 7 p O 22 , is summarized. Especially, low dilutions of the magnetic network could be achieved and we take
Publikováno v:
Journal de Physique IV (Proceedings). 131:27-32
Oriented powder samples of Na x CoO 2 with quasi single phase composition have been synthesized and studied by x rays, SQUID magnetometry, 23 Na and 59 Co NMR. We evidence that the dry and superconducting (SC) samples with x 0.35 differ from those wi
Publikováno v:
Journal of Physics: Condensed Matter. 16:S817-S822
We present a survey of an NMR and μSR magnetic study of the so called 'QS ferrite' frustrated antiferromagnet Ba 2 Sn 2 ZnCr 6.8 Ga 3.2 O 22 (BSZCGO(0.97)). We compare our results to the archetype of highly frustrated magnets, SrCr 8.6 Ga 3.4 O 19 (
Autor:
Juan Rodríguez-Carvajal, N. Blanchard, Thierry Roisnel, Gilles André, Gaston Collin, N. El Khayati, Françoise Bourée, R. Cherkaoui El Moursli
Publikováno v:
The European Physical Journal B. 22:429-442
We have studied in detail the crystal and magnetic structures of the oxyphosphates MFePO5 (M: divalent transition metal) using neutron powder diffraction as a function of temperature. All of them are isomorphic to the mixed valence compound α-Fe2PO5
Publikováno v:
Physical Review Letters. 85:3496-3499
We present the first Ga(4f ) NMR study of the Cr susceptibility in the archetype of kagom\'e-based frustrated antiferromagnets, ${\mathrm{SrCr}}_{8}{\mathrm{Ga}}_{4}{\mathrm{O}}_{19}$. Our major finding is that the susceptibility of the frustrated la
Autor:
N. Blanchard, Julien Bobroff, Henri Alloul, J.-F. Marucco, W. A. MacFarlane, Gaston Collin, Philippe Mendels
Publikováno v:
Physical Review Letters. 85:1108-1111
We present a study of the spin dynamics of magnetic defects induced by Li substitution of the plane Cu in the normal state of YBa$_2$Cu$_3$O$_{6+x}$. The fluctuations of the coupled Cu magnetic moments in the vicinity of Li are probed by near-neighbo
Publikováno v:
Physical Review B. 62:622-625