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[文献書誌] Haruo Niki et al.: "Proton Nuclear Spin-Lattice Relaxation in Hydrogen-Doped Superconductor YBa_2Cu_3O_<6.94>H_<0.2>" Solid State Communications.
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[文献書誌] Haruo Niki et al.: "Proton NMR Studies on Hydrogen-doped High-Tc Superconductor" Yamada Conference XXV on Magnetic Phase Transion,April 13-16,1990,Osaka.
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[文献書誌] Haruo Niki et al.: "Proton NMR Studies on Hydrogen-doped ductor Superconductor YBa_2Cu_3O_<6.94>Hx," “Research Report on Mechanism of Superconductivity",Science Research on Priority Areas No.031,Ministry of Education,Science and Culture,. 216-221 (1990)
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