Publications (9)
"Wigner crystal" and "stripe" models for the magnetic and crystallographic superstructures of La0.333Ca0 .667MnO3
P. G. Radaelli, D. E. Cox, L. Capogna +2
The crystallographic (charge-ordered) and magnetic superstructures of La0.333Ca0.667MnO3 were studied by high-resolution synchrotron x-ray and neutron powder diffraction. In the an…
A comment on the superconductivity of Sr2CuO3+delta
T. H. Geballe, M. Marezio
We have revisited data in the literature and find compelling reasons for believing that enhanced superconductivity occurs in Sr2CuO3+delta when about one third of the oxygen sites…
Bulk superconductivity at 84 K in the strongly overdoped regime of cuprates
A. Gauzzi, Y. Klein, M. Nisula +8
By means of magnetization, specific heat and muon-spin relaxation measurements, we investigate high-pressure oxidized \mohpo, in which overdoping is achieved up to ho…
Internal-strain mediated coupling between polar Bi and magnetic Mn ions in the defect-free quadruple-perovskite BiMnMnO
A. Gauzzi, G. Rousse, F. Mezzadri +10
By means of neutron powder diffraction, we investigated the effect of the polar Bi ion on the magnetic ordering of the Mn ions in BiMnMnO, the counterp…
Out of plane effect on the superconductivity of Sr2-xBaxCuO3+d with Tc up to 98K
T. H. Geballe, M. Marezio
We comment on the paper published by W.B. Gao, Q.Q. Liu, L.X. Yang, Y.Yu, F.Y. Li, C.Q. Jin and S. Uchida in Phys. Rev. B 80, 094523 (2009) and give alternate explanations for the…
Overdoped Cuprates With High Temperature Superconducting Transitions
M. Marezio, O. Chmaissem, C. Bougerol +3
Evidence for High Tc cuprate superconductivity is found in a region of the phase diagram where non-superconducting Fermi liquid metals are expected. Cu valences estimated independe…