5 papers
Electronic texture of the thermoelectric oxide Na0.75CoO2
M. -H. Julien, C. de Vaulx, H. Mayaffre +9
From 59Co and 23Na NMR, we demonstrate the impact of the Na+ vacancy ordering on the cobalt electronic states in Na0.75CoO2: at long time scales, there is neither a disproportionat…
Field dependence of the quantum ground state in the Shastry-Sutherland system SrCu(BO)
F. Levy, I. Sheikin, C. Berthier +5
We present magnetic torque measurements on the Shastry-Sutherland quantum spin system SrCu(BO) in fields up to 31 T and temperatures down to 50 mK. A new quantum phase…
NMR evidence for the persistence of spin-superlattice above the 1/8 magnetization plateau in SrCu2(BO3)2
M. Takigawa, S. Matsubara, M. Horvatic +3
We present 11B NMR studies of the 2D frustrated dimer spin system SrCu2(BO3)2 in the field range 27-31 T covering the upper phase boundary of the 1/8 magnetization plateau, identif…
NMR evidence for a strong modulation of the Bose-Einstein Condensate in BaCuSiO
S. Kramer, R. Stern, M. Horvatic +3
We present a Cu and Si NMR study of the quasi-2D coupled spin 1/2 dimer compound BaCuSiO in the magnetic field range 13-26 T and at temperatures as low as…
Magnetic Field Induced Low-Energy Spin Excitations in YBa2Cu4O8 Measured by High Field Gd3+ ESR
Titusz Feher, Andras Janossy, Gabor Oszlanyi +5
We have measured the spin susceptibility of the underdoped high temperature superconductor, YBa2Cu4O8 by Gd^{3+} electron spin resonance in single crystals and aligned powders at s…