4 papers
Two-Dimensional Geometry of Spin Excitations in the High Temperature Superconductor YBa2Cu3O6+x
V. Hinkov, S. Pailhes, P. Bourges +7
The fundamental building block of the copper oxide superconductors is a Cu4O4 square plaquette. In most of these materials, the plaquettes are slightly distorted and form a rectang…
Spin-controlled Mott-Hubbard bands in LaMnO_3 probed by optical ellipsometry
N. N. Kovaleva, A. V. Boris, C. Bernhard +5
Spectral ellipsometry has been used to determine the dielectric function of an untwinned crystal of LaMnO_3 in the spectral range 0.5-5.6 eV at temperatures 50 K < T < 300 K. A pro…
The crystal growth and characterization of NaxCoO2 and NaxCoO2yH2O
D. P. Chen, H. C. Chen, A. Maljuk +4
A systematic study of NaxCoO2 (x=0.50 - 0.90) and NaxCoO2 yH(D)2O (x=0.26 - 0.42, y=1.3) has been performed to determine phase stability and the effect of hydration on the structur…
Strong 3D correlations in vortex system of Bi2212:Pb
L. S. Uspenskaya, A. B. Kulakov, A. L. Rakhmanov
The experimental study of magnetic flux penetration under crossed magnetic fields in Bi2212:Pb single crystal performed by magnetooptic technique (MO) reveals remarkable field pene…