C. Michioka

activity

20032008

most cited59Co Nuclear Quadrupole Resonance Studies of Superconducting and Non-superconducting Bilayer Water Intercalated Sodium Cobalt Oxides NaxCoO2.yH2O

32 citations · 48 across the 7 of their papers we have counts for

collaborators

Showing 2005Show all

6 papers · 1 filter

cond-mat.supr-con2005

Anisotropic Behavior of Knight Shift in Superconducting State of Na_xCoO_2yH_2O

Y. Ihara, K. Ishida, H. Takeya +8

The Co Knight shift was measured in an aligned powder sample of Na_xCoO_2yH_2O, which shows superconductivity at T_c \sim 4.6 K. The Knight-shift components parallel (K_c) and perp…

cond-mat.supr-con2005

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.…

cond-mat.supr-con2005

Novel phase diagram of superconductor NaxCoO2-yH2O in a 75 % relative humidity

Hiroto Ohta, Chishiro Michioka, Yutaka Itoh +1

We succeeded in synthesizing the powder samples of bilayer-hydrate sodium cobalt oxide superconductors NaxCoO2-yH2O with Tc = 0 ~ 4.6 K by systematically changing the keeping durat…

cond-mat.supr-con2005

Zeeman Perturbed $^{63}$ Cu Nuclear Quadrupole Resonance Study of the Vortex State of YBa $_{2}$ Cu $_{3}$ O $_{7 - δ}$

Y. Itoh, C. Michioka, K. Yoshimura +1

We report a $^{63}$ Cu nuclear quadrupole resonance (NQR) study of the vortex state for an aligned polycrystalline sample of a slightly overdoped high- $T_{c}$ superconductor YBa $_{2}$ Cu…

cond-mat.supr-con2005

$^{23}$ Na NMR Study of Layered Superconductor $N a_{x} C o O_{2} - y H_{2} O$

H. Ohta, C. Michioka, Y. Itoh +5

We measured $^{23}$ Na-NMR spectra and nuclear spin-lattice relaxation rates $^{23} (1/ T_{1})$ of superconducting and non-superconducting bilayer hydrate $N a_{x} C o O_{2} - y H_{2} O$ (x ~ 0.3, y…

cond-mat.supr-con2005

Vortex State of Tl $_{2}$ Ba $_{2}$ CuO $_{6 + δ}$ via $^{205}$ Tl NMR at 2 Tesla

Y. Itoh, C. Michioka, K. Yoshimura +2

We report a $^{205}$ Tl NMR study of vortex state for an aligned polycrystalline sample of an overdoped high- $T_{c}$ superconductor Tl $_{2}$ Ba $_{2}$ CuO $_{6 + δ}$ ( $T_{c} \sim$ 85 K) with magn…

Anisotropic Behavior of Knight Shift in Superconducting State of Na_xCoO_2yH_2O

23Na NMR Studies of Non-superconducting and Superconducting Na0.35CoO2-1.3H2O (Tc < 1.8 and ~ 4.5 K)

Novel phase diagram of superconductor NaxCoO2-yH2O in a 75 % relative humidity

Zeeman Perturbed 63Cu Nuclear Quadrupole Resonance Study of the Vortex State of YBa2​Cu3​O7−δ​

23Na NMR Study of Layered Superconductor Nax​CoO2​−yH2​O

Vortex State of Tl2​Ba2​CuO6+δ​ via 205Tl NMR at 2 Tesla

Zeeman Perturbed $^{63}$ Cu Nuclear Quadrupole Resonance Study of the Vortex State of YBa $_{2}$ Cu $_{3}$ O $_{7 - δ}$

$^{23}$ Na NMR Study of Layered Superconductor $N a_{x} C o O_{2} - y H_{2} O$

Vortex State of Tl $_{2}$ Ba $_{2}$ CuO $_{6 + δ}$ via $^{205}$ Tl NMR at 2 Tesla