5 papers · 1 filter
In-plane Anisotropy of the Magnetic Fluctuations in NaxCoO2-yH2O
C. Michioka, Y. Itoh, H. Ohta +2
We report the Co NMR studies of the in-plane anisotropy of bilayer hydrated Na using a oriented powder sample by a magnetic fie…
23Na NMR study of non-superconducting double-layer hydrate NaxCoO2.yH2O
H. Ohta, Y. Itoh, C. Michioka +1
We report 23Na NMR studies of the polycrystalline samples of double-layer hydrated cobalt oxides NaxCoO2.yH2O (x ~ 0.35 and y ~ 1.3) with the superconducting transition temperature…
59Co Nuclear Quadrupole Resonance Studies of Superconducting and Non-superconducting Bilayer Water Intercalated Sodium Cobalt Oxides NaxCoO2.yH2O
C. Michioka, H. Ohta, Y. Itoh +1
We report 59Co nuclear quadrupole resonance (NQR) studies of bilayer water intercalated sodium cobalt oxides NaxCoO2.yH2O (BLH) with the superconducting transition temperatures, 2…
23Na NMR Studies of Non-superconducting and Superconducting Na0.35CoO2-1.3H2O (Tc < 1.8 and ~ 4.5 K)
H. Ohta, Y. Itoh, C. Michioka +1
We report 23Na NMR studies of the polycrystalline samples of bilayer hydrated cobalt oxides Na0.35CoO2-1.3H2O with the superconducting transition temperatures Tc < 1.8 and ~ 4.5 K.…
Na NMR Study of Layered Superconductor
H. Ohta, C. Michioka, Y. Itoh +5
We measured Na-NMR spectra and nuclear spin-lattice relaxation rates of superconducting and non-superconducting bilayer hydrate (x ~ 0.3, y…