B. Chevalier
Centre national de la recherche scientifique
17 Papers
181 Citations
B. Chevalier is an academic researcher from Centre national de la recherche scientifique. The author has contributed to research in topics: Superconductivity & Magnetic susceptibility. The author has an hindex of 9, co-authored 17 publications. Previous affiliations of B. Chevalier include University of Bordeaux.
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Papers
Stabilization of a new superconducting phase by low temperature fluorination of La2CuO4
B. Chevalier,Alain Tressaud,B. Lepine,K. Amine,Jean-Michel Dance,L. Lozano,E. Hickey,J. Etourneau +7 more
TL;DR: In this article, the X-ray diffraction pattern of the resulting product is characteristic of a new single phase derived from the K 2 NiF 4 -type structure, and an enhancement of the orthorhombic distortion relative to the starting oxide is observed with: a = 5.342 A; b = 5,436 A; and c = 13.192 A.
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Superconductivity of La2CuxO4 − y
J. Beille,B. Chevalier,Gérard Demazeau,F. Deslandes,J. Etourneau,O. Laborde,Claude Michel,P. Lejay,J. Provost,B. Raveau,André Sulpice,J.L. Tholence,Robert Tournier +12 more
TL;DR: The existence of a bump in the resistivity at T = 220 K of samples which undergo a superconducting transition suggest a possible correlation between coherence effects among copper spins and superconductivity as mentioned in this paper.
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EXAFS study at the La LIII X-ray absorption edge of superconducting materials obtained by fluorination of La2−xSrxCuO4 oxides (0≤x≤0.15)
TL;DR: In this article, the influence of a fluorine-gas treatment on both structural and superconducting properties of the La 2− x Sr x CuO 4 (0≤ x ≤ 0.1 5) solid solution has been studied.
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Crystal structure, magnetic and electrical properties of the new ternary stannide Ce2Ni2Sn
TL;DR: In this article, the Kondo effect plays an important role in the physical properties of the stannide Ce 2 Ni 2 Sn, which adopts an orthorhombic structure related to the W 2 CoB 2 type (space group, Immm).
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Superconductivity in chlorine-treated La2CuO4
TL;DR: In this article, a superconducting transition was observed in La2CuO4 treated under chlorine pressure and the resulting compound obtained at 300°C and for Pcl2 ≈ 6 bar shows an X-ray diffraction pattern which can be indexed in an orthorhombic symmetry with the following unit-cell parameters: a = 5.354 A, b = 5378 A and c = 13.190 A.
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