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1.

Absence of static phase separation in the high T(c) cuprate YBa(2)Cu(3)O(6+y).

Bobroff, J; Alloul, H; Ouazi, S; Mendels, P; Mahajan, A; Blanchard, N; Collin, G; Guillen, V; Marucco, J-F.

Phys Rev Lett ; 89(15): 157002, 2002 Oct 07.

Artículo en Inglés | MEDLINE | ID: mdl-12366014

RESUMEN

We use 89Y NMR in YBa(2)Cu(3)O(6+y) in order to evaluate with high sensitivity the distribution of hole content p in the CuO2 planes. For y=1 and y=0.6, this hole doping distribution is found narrow with a full width at half maximum smaller than Deltap=0.025. This rules out any large static phase separation between underdoped and optimally doped regions in contrast with the one observed by STM in Bi2212 and by NQR in LaSrCuO. This establishes that static electronic phase separation is not a generic feature of the cuprates.

2.

Zinc-induced modification of the dynamical magnetic susceptibility in the superconducting state of YBa2Cu3O6+x as revealed by inelastic neutron scattering.

Sidis Y; Bourges P; Hennion B; Regnault LP; Villeneuve R; Collin G; Marucco JF.

Phys Rev B Condens Matter ; 53(10): 6811-6818, 1996 Mar 01.

Artículo en Inglés | MEDLINE | ID: mdl-9982083

3.

89Y NMR probe of Zn induced local moments in YBa2(Cu1-yZny)3O6+x.

Mahajan AV; Alloul H; Collin G; Marucco JF.

Phys Rev Lett ; 72(19): 3100-3103, 1994 May 09.

Artículo en Inglés | MEDLINE | ID: mdl-10056067

4.

Muon-spin-rotation study of the effect of Zn substitution on magnetism in YBa2Cu3Ox.

Mendels P; Alloul H; Brewer JH; Morris GD; Duty TL; Johnston S; Ansaldo EJ; Collin G; Marucco JF; Niedermayer C; Noakes DR; Stronach CE.

Phys Rev B Condens Matter ; 49(14): 10035-10038, 1994 Apr 01.

Artículo en Inglés | MEDLINE | ID: mdl-10009819

5.

Correlations between magnetic and superconducting properties of Zn-substituted YBa2Cu3O6+x.

Alloul H; Mendels P; Casalta H; Marucco JF; Arabski J.

Phys Rev Lett ; 67(22): 3140-3143, 1991 Nov 25.

Artículo en Inglés | MEDLINE | ID: mdl-10044651

6.

X-ray-absorption near-edge structure of titanium and vanadium in (Ti,V)O2 rutile solid solutions.

Poumellec B; Marucco JF; Touzelin B.

Phys Rev B Condens Matter ; 35(5): 2284-2294, 1987 Feb 15.

Artículo en Inglés | MEDLINE | ID: mdl-9941678

RESUMEN

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