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- H. Takeya2 profiles21 · h 35
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20 papers · 1 filter
Switching current distributions and subgap structures of underdoped (Hg,Re)Ba2Ca2Cu3O8+d intrinsic Josephson junctions
S. Ueda, T. Yamaguchi, Y. Kubo +4
We have investigated the intrinsic Josephson properties in slightly underdoped (Hg,Re)Ba2Ca2Cu3Oy [Hg(Re)1223] intrinsic Josephson junctions (IJJs) with a dimension of 1.0x1.5x0.11…
Quasiparticles of spatially anisotropic triangular antiferromagnets in a magnetic field
Masanori Kohno
The spectral properties of the spin-1/2 Heisenberg antiferromagnet on an anisotropic triangular lattice in a magnetic field are investigated using a weak-interchain-coupling approa…
NMR and NQR study of pressure-induced superconductivity and the origin of critical-temperature enhancement in the spin-ladder cuprate SrCaCuO
N. Fujiwara, Y. Fujimaki, S. Uchida +3
Pressure-induced superconductivity was studied for a spin-ladder cuprate SrCaCuO using nuclear magnetic resonance (NMR) under pressures up to the optimal p…
Preparation of electron-doped La(2-x)CexCuO4 thin films with various Ce doping by dc magnetron sputtering
B. X. Wu, K. Jin, J. Yuan +4
A series of c-axis oriented electron-doped high-Tc superconducting La(2-x)CexCuO4 thin films, from heavily underdoped x=0.06 to heavily overdoped x=0.19, have been synthesized by d…
Control of electric current by graphene edge structure engineering
Masayuki Yamamoto, Katsunori Wakabayashi
In graphene nanoribbon junctions, the nearly perfect transmission occurs in some junctions while the zero conductance dips due to anti-resonance appear in others. We have classifie…
Electronic transport properties of graphene nanoribbons
Katsunori Wakabayashi, Yositake Takane, Masayuki Yamamoto +1
We will present brief overview on the electronic and transport properties of graphene nanoribbons focusing on the effect of edge shapes and impurity scattering. The low-energy elec…