| Issue Date | Title | Author(s) | Source | scopus | WOS | Fulltext/Archive link |
| 2007 | Charge compensation and oxidation in NaxCoO2-delta and LixCoO2-delta studied by XANES | Valkeapaa, M.; Katsumata, Y.; Asako, I.; Motohashi, T.; Chan, T. S.; Liu, R. S.; Chen, J. M.; Yamauchi, H.; Karppinen, M.; RU-SHI LIU | Journal of Solid State Chemistry | 11 | 10 | |
| 2007 | Charge compensation and oxidation in NaxCoO2-delta and LixCoO2-δ studied by XANES | Valkeapaa, M.; Katsumata, Y.; Asako, I.; Motohashi, T.; Chan, T. S.; Liu, R. S.; Chen, J. M.; Yamauchi, H.; Karppinen, M. | Journal of Solid State Chemistry | | |  |
| 2005 | Chemical control of high-T-c superconductivity of the triple-fluorite-layer copper oxide (Cu,Mo)Sr-2(Ce,R)(3)Cu2O11+delta(R=Y,La-Yb) | Karppinen, M.; Morita, Y.; Chen, J. M.; Liu, R. S.; Yamauchi, H.; RU-SHI LIU | Physical Review B | 8 | 8 | |
| 2006 | Chemical control of hole distribution and superconductivity in (Cu,Mo)Sr-2(Ce,R)(s)Cu2O5+2s+delta (s=2, 3; R = Y, La-Yb) | Grigoraviciute, I.; Chen, J. M.; Liu, R. S.; Ishii, S.; Yamauchi, H.; Karppinen, M.; RU-SHI LIU | Chemistry of Materials | 1 | 1 | |
| 2009 | Comparative XANES study on the two electron-doped high-Tc superconductor systems, (Sr,La)CuO2 and (Nd,Ce)(2)CuO4 | Tanaka, Y.; Karppinen, M.; Chen, J. M.; Liu, R. S.; Yamauchi, H.; RU-SHI LIU | Journal of Solid State Chemistry | 3 | 3 | |
| 2007 | Control of hole distribution through isovalent R-cation substitution in Cu2Ba2RCu2O8 superconductors | Karppinen, M.; Abe, Y.; Grigoraviciute, I.; Chen, J. M.; Liu, R. S.; Yamauchi, H.; RU-SHI LIU | Applied Physics Letters | 0 | 0 | |
| 2004 | Effect of Sr-for-Ba isovalent substitution on the local structure, hole distribution and magnetic irreversibility of Cu(Ba,Sr)(2)YbCu2O6.95(2) | Nakane, T.; Isawa, K.; Liu, R. S.; Chen, J. M.; Yamauchi, H.; Karppinen, M.; RU-SHI LIU | Journal of Solid State Chemistry | 4 | 2 | |
| 2006 | Electron-doping through La-III-for-Sr-II substitution in (Sr1-xLax)(2)FeTaO6: Effects on the valences and ordering of the B-site cations, Fe and Ta | Rautama, E. L.; Chan, T. S.; Liu, R. S.; Chen, J. M.; Yamauchi, H.; Karppinen, M.; RU-SHI LIU | Journal of Solid State Chemistry | 9 | 9 | |
| 2004 | Hole concentration in the three-CuO2-plane copper-oxide superconductor Cu-1223 | Karppinen, M.; Yamauchi, H.; Morita, Y.; Kitabatake, M.; Motohashi, T.; Liu, R. S.; Lee, J. M.; Chen, J. M.; RU-SHI LIU | Journal of Solid State Chemistry | 40 | 37 | |
| 2005 | Hole doping and superconductivity characteristics of the s=1, 2 and 3 members of the (Cu,Mo)-12s2 homologous series of layered copper oxides | Karppinen, M.; Morita, Y.; Kobayashi, T.; Grigoraviciute, I.; Chen, J. M.; Liu, R. S.; Yamauchi, H.; Hung, Ming-Hui ; RU-SHI LIU ; Cheng, Ya-Jung | Journal of Solid State Chemistry | 13 | 13 | |
| 2003 | Hole doping in Pb-free and Pb-substituted (Bi,Pb)(2)Sr2Ca2Cu3O10+delta superconductors | Karppinen, M.; Lee, S.; Lee, J. M.; Poulsen, J.; Nomura, T.; Tajima, S.; Chen, J. M.; Liu, R. S.; Yamauchi, H.; RU-SHI LIU | Physical Review B | 23 | 18 | |
| 2007 | Induced chemical pressure by O vacancies in (Tb1-xNax) MnO3-y | Chan, T. S.; Liu, R. S.; Lien, Y. H.; Huang, C. Y.; Hu, S. F.; Chen, J. M.; Lee, J. F.; Karppinen, M.; Yamauchi, H. | Chinese Journal of Physics | | | |
| 2007 | Induced chemical pressure by O vacancies in (Tb1-xNax)MnO3-y | Chan, T. S.; Liu, R. S.; Lien, Y. H.; Huang, C. Y.; Hu, S. F.; Chen, J. M.; Lee, J. F.; Karppinen, M.; Yamauchi, H.; RU-SHI LIU | Chinese Journal of Physics | | 0 | |
| 2004 | Iron valence in double-perovskite (Ba,Sr,Ca)(2)FeMOO6: isovalent substitution effect | Yasukawa, Y.; Linden, J.; Chan, T. S.; Liu, R. S.; Yamauchi, H.; Karppinen, M.; RU-SHI LIU | Journal of Solid State Chemistry | 43 | 40 | |
| 2010 | Isovalent and aliovalent substitution effects on redox chemistry of Sr2MgMoO6-delta SOFC-anode material | Vasala, S.; Lehtimaki, M.; Haw, S. C.; Chen, J. M.; Liu, R. S.; Yamauchi, H.; Karppinen, M.; RU-SHI LIU | Solid State Ionics | 52 | 50 | |
| 2003 | Layer-specific hole concentrations in Bi2Sr2(Y1-xCax)Cu2O8+delta as probed by XANES spectroscopy and coulometric redox analysis | Karppinen, M.; Kotiranta, M.; Nakane, T.; Yamauchi, H.; Chang, S. C.; Liu, R. S.; Chen, J. M.; RU-SHI LIU | Physical Review B | 2 | 30 | |
| 2001 | O K-edge and Cu L-23-edge XANES study on the concentration and distribution of holes in the (Pb2/3Cu1/3)(3)Sr-2(Y, Ca) Cu2O8+z superconductive phase | Karppinen, M.; Kotiranta, M.; Yamauchi, M.; Nachimuthu, P.; Liu, R. S.; Chen, J. M.; RU-SHI LIU | Physical Review B | 22 | 20 | |
| 2003 | Oxygen content and valence of Ru in RuSr2(Gd0.75Ce0.25)(2)Cu2O10-delta (Ru-1222) magnetosuperconductor | Awana, V. P. S.; Karppinen, M.; Yamauchi, H.; Matvejeff, M.; Liu, R. S.; Jang, L. Y.; RU-SHI LIU | Journal of Low Temperature Physics | 16 | 15 | |
| 2003 | Oxygen non-stoichiometry in Ru-1212 and Ru-1222 magnetosuperconductors | Matvejeff, M.; Awana, V. P. S.; Jang, L. Y.; Liu, R. S.; Yamauchi, H.; Karppinen, M.; RU-SHI LIU | Physica C-Superconductivity and Its Applications | 18 | 17 | |
| 2005 | Oxygen nonstoichiometry and valence of copper in the Cu-1222 superconductor | Karppinen, M.; Arai, M.; Lee, J. M.; Chan, T. S.; Morita, Y.; Chen, J. M.; Liu, R. S.; Yamauchi, H.; RU-SHI LIU | Journal of Solid State Chemistry | 4 | 3 | |
