Trace element composition of IODP Site 304-U1309 and 305-U1309 (Table A2) (2009)
Godard, Marguerite, Awaji, S, Hansen, H, Hellebrand, Eric, Brunelli, D, Johnson, K, ...
IODP Site U1309 was drilled at Atlantis Massif, an oceanic core complex, at 30°N on the Mid-Atlantic Ridge (MAR). We present the results of a bulk rock geochemical study (major and trace elements)...
Inoue, H., Tani, S., Hosoya, S., Inokuchi, K., Fujiwara, T., Saito, T., ...
$^{63/65}$Cu- and $^{35/37}$Cl-NMR experiments were performed to investigate triplet localization in the $S=1/2$ dimer compound NH$_4$CuCl$_3$, which shows magnetization plateaus at one-quarter and...
A cheap liquid additive from acetone for strong in-field Jc enhancement in MgB2 conductors (2008)
Wang, Dongliang, Ma, Yanwei, Gao, Zhaoshun, Zhang, Xianping, Wang, Lei, Awaji, S., ...
We report on significant flux pinning enhancement in MgB2/Fe tapes that has been easily obtained by a simple and cheap route using acetone as both an efficient ball-milling medium and liquid additive...
NMR Study on the Vortex Slush Phase in Organic Superconductor \kappa-(BEDT-TTF)2Cu(NCS)2 (2007)
Urano, M., Tonishi, J., Inoue, H., Saito, T., Fujiwara, T., Chiku, H., ...
The vortex state in a single crystal of the layered organic superconductor \kappa-(BEDT-TTF2Cu(NCS)2, where BEDT-TTF (or ET) is bis(ethylenedithio)tetrathiafulvalene, was studied by 1H-NMR. Under a...
Improved critical current densities in MgB2 tapes with ZrB2 doping (2006)
Zhang, Xianping, Gao, Zhaoshun, Wang, Dongliang, Yu, Zhengguang, Ma, Yanwei, Awaji, S., ...
MgB2/Fe tapes with 2.5-15 at.% ZrB2 additions were prepared through the in situ powder-in-tube method. Compared to the pure tape, a significant improvement in the in-field critical current density Jc...
Improved properties of epitaxial YNixMn1-xO3 films by annealing under high magnetic fields (2006)
Ma, Yanwei, Xu, Aixia, Li, Xiaohang, Guilloux-Viry, M., Pena, O., Awaji, S., ...
The effect of annealing under a magnetic field on the microstructure and properties of YNixMn1-xO3 (x=0.33 and 0.5) films has been investigated. It is found that the ferromagnetic transition...
Cu-NMR study on the disordered quantum spin magnet with the Bose-glass ground state (2006)
Fujiwara, T., Inoue, H., Oosawa, A., Tsunoda, R., Goto, T., Suzuki, T., ...
Cu-NMR study has been performed on the disordered spin-gap system Tl1-xKxCuCl3 In the high-field H > HC=\Delta/\mu_B, where \Delta is the spin-gap, the hyperfine field becomes extremely inhomogeneous...
Large irreversibility field in nanoscale C-doped MgB2/Fe tape conductors (2006)
Ma, Yanwei, Zhang, Xianping, Awaji, S., Gao, Zhaoshun, Wang, Dongliang, Yu, Zhengguang, ...
We investigated the effect of nanoscale-C doping on the critical current density Jc and irreversibility field Birr of Fe-sheathed MgB2 tapes prepared by the in-situ powder-in-tube method. The tapes...
Discovery of Li2(Pd,Pt)3B superconductors (2006)
Badica, P., Togano, K., Takeya, H., Hirata, K., Awaji, S., Watanabe, K.
Critical temperature Tc of the Li2(Pd1-xPtx)3B was reported to be 7-8K for x=0 and 2.2-2.8K for x=1. In this article we present our preliminary results on behavior of magnetization-temperature curves...
Enhanced critical current density of MgB2 superconductor synthesized in high magnetic fields (2006)
Ma, Yanwei, Xu, Aixia, Zhang, Xianping, Li, Xiaohang, Awaji, S., Watanabe, K.
The effect of high magnetic fields on the current carrying properties of both MgB2 bulks and Fe-sheathed tapes was investigated following different thermal sequences. It is found that application of...
Effect of nano-C doping on the in-situ processed MgB2 tapes (2005)
Zhang, Xianping, Ma*, Yanwei, Xu, Aixia, Jiao, Yulei, Xiao, Ling, Awaji, S., ...
The effect of nano-C doping on the microstructure and superconducting properties of Fe-sheathed MgB2 tapes prepared through the in-situ powder-in-tube method was studied. Heat treatment was performed...
Nb3Sn Multifilamentary Wires With CuNb Reinforcing Stabilizer. (1998)
Watanabe, K., Hoshi, A., Awaji, S., Katagiri, K., Noto, K.
Newly developed was a bronze processed multifilamentary nb3sn superconducting wire, cunb/nb3sn, with cunb reinforcing stabilizer, which exhibited a residual resistance ratio of 20 and a...