J
Junichiro Wada
Researcher at Tohoku University
Publications - 9
Citations - 778
Junichiro Wada is an academic researcher from Tohoku University. The author has contributed to research in topics: Neutron scattering & Magnetic structure. The author has an hindex of 7, co-authored 9 publications receiving 747 citations.
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Journal ArticleDOI
Doping dependence of the spatially modulated dynamical spin correlations and the superconducting-transition temperature in La 2-x Sr x CuO 4
Kohta Yamada,Chul-Ho Lee,K. Kurahashi,Junichiro Wada,S. Wakimoto,S. Ueki,Hisamichi Kimura,Yasuo Endoh,S. Hosoya,Gen Shirane,Robert J. Birgeneau,Martin Greven,Marc Kastner,Young-June Kim +13 more
TL;DR: In this article, a low-energy spin-fluctuation peak position shifts from ($\frac{1}{2}$ to ($ \frac{ 1}{2$\ifmmode\pm\else\textpm\fi{ \ensuremath{\delta}=x$, and the peak momentum width of the spin fluctuations at low energies is small throughout the superconducting concentration region.
Journal ArticleDOI
Spatial modulation of low-frequency spin fluctuations in hole-doped La2CuO4
Kohta Yamada,Chul-Ho Lee,Junichiro Wada,K. Kurahashi,Hisamichi Kimura,Yasuo Endoh,S. Hosoya,Gen Shirane,Robert J. Birgeneau,Marc Kastner +9 more
TL;DR: In this article, a linear relation between the degree of spatial modulation or the incommensurability Σ(x) and the maximum Tc atx was observed for a Sr-doped La 2 -SrxCuO4 system.
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Preparation of single crystal of Ca2CuO3 by TSFZ method
TL;DR: In this paper, a single crystal fo Ca 2 CuO 3 has been successfully prepared by the traveling-solvent-floating-zone (TSFZ) method using CuO excess solvent.
Journal ArticleDOI
Antiferromagnetic long range order of the linear chain cuprate Ca2CuO3
Kazuyoshi Yamada,Junichiro Wada,S. Hosoya,Yasuo Endoh,Satoru Noguchi,Shuichi Kawamata,Kiichi Okuda +6 more
TL;DR: In this paper, a single crystal of Ca 2 CuO 3, an S = 1 2 quasi-one-dimensional (ID) antiferromagnet, was observed to have an antiparallel Cu spin alignment within the CuO chain and between the nearest neighbor spins on the different chains.
Journal ArticleDOI
Neutron Scattering Study of Oxygen Ordering and Magnetic Correlations in La 2NiO 4.11 and La 2NiO 4.125
Kenji Nakajima,Yasuo Endoh,S. Hosoya,Junichiro Wada,Detmar Welz,Hans-Michael Mayer,Hans-Anton Graf,Michael Steiner +7 more
TL;DR: In this article, the effect of oxygen doping on the structural and magnetic properties of La 2 NiO 4+δ (δ=0.11, and 0.125) was studied.