46 citations · 127 across the 8 of their papers we have counts for
8 papers
Cu hyperfine coupling constants of HgBaCaCuO
Y. Itoh, T. Machi, A. Yamamoto
We estimated the ratios of Cu hyperfine coupling constants in the double-layer high- superconductor HgBaCaCuO from the anisotropies in Cu nucle…
Comparative study of macroscopic quantum tunneling in Bi_2Sr_2CaCu_2O_y intrinsic Josephson junctions with different device structures
K. Ota, K. Hamada, R. Takemura +6
We investigated macroscopic quantum tunneling (MQT) of BiSrCaCuO intrinsic Josephson junctions (IJJs) with two device structures. One is a nanometer-thick small mes…
Hg-Based Superconducting Cuprates: High Tc and Pseudo Spin-Gap
Y. Itoh, T. Machi
A brief review of microscopic studies of high-Tc superconductors HgBa2CuO4+d and HgBa2CaCu2O6+d is presented. The topics concerned are the pseudo spin-gap, the antiferromagnetic sp…
Re-appearance of antiferromagnetic ordering with Zn and Ni substitution in La_{2-x}Sr_xCuO_4
T. Machi, I. Kato, R. Hareyama +5
The effects of nonmagnetic Zn and magnetic Ni substitution for Cu site on magnetism are studied by measurements of uniform magnetic susceptibility for lightly doped La_{2-x}Sr_xCu_…
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…
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,…