46 citations · 74 across the 6 of their papers we have counts for
6 papers
Quest for nuclear quadrupole relaxation in HgCaBaCuO
Yutaka Itoh, Akihiro Ogawa, Seiji Adachi
We derived a simple reduced form from the exact solution of the mixed magnetic and quadrupolar nuclear spin--lattice relaxation function at the central transition line of a quadrup…
Zn-Neighbor Cu NQR in Zn-Substituted YBa2Cu3O7-d and YBa2Cu4O8
Y. Itoh, T. Machi, C. Kasai +4
We studied local electronic states near Zn in optimally doped YBa(CuZn_x)O and underdoped YBa(CuZn_x)O via satellite signals of plane-si…
Ni-substituted sites and the effect on Cu electron spin dynamics of YBa2Cu{3-x}NixO{7-δ}
Y. Itoh, S. Adachi, T. Machi +2
We report Cu nuclear quadrupole resonance experiment on magnetic impurity Ni-substituted YBaCuNiO. The distribution of Ni-substituted sites and its effect o…
Zn-doping dependence of the wipeout region around Zn in YBa2(Cu1-xZnx)4O8
Y. Itoh, T. Machi, N. Watanabe +3
We estimated the spread of the magnetically enhanced regions (wipeout regions) around Zn ions in high-Tc superconductors YBa2(Cu1-xZnx)4O8 (x=0, 0.005, 0.01, and 0.022) at T=4.2 K,…
Cu Nuclear Quadrupole Resonance Study of Site-Disorder and Chemical Pressure Effects on Y(Ba1-xSrx)2Cu4O8
Y. Itoh, S. Adachi, T. Machi +1
We report a zero-field Cu nuclear quadrupole resonance (NQR) study on the effects of nonmagnetic Sr substitution for high-Tc superconductors, Y(Ba1-xSrx)2Cu4O8 (Tc=82-80 K for x=0-…
Spin Dynamics near the Superconductor-to-Insulator Transition in Impurity-Doped YBa2Cu4O8
Y. Itoh, T. Machi, N. Watanabe +2
We studied low-frequency spin dynamics near the impurity-induced superconductor-to-insulator transition for underdoped high-Tc superconductor YBa2(Cu1-xMx)4O8 (M=Ni, Zn) using the…