"S.Takata,A.Hachiya,Y.Matsumoto","Non-Linear Electric Field Response of Permittivity of Atomically Smooth TiO2(rutile)SingleCrystals Studied by an Elecrochemical Approach",,"Journal of the Ceramic Society of Japan",,"Vol. 120","No. 1405","pp. 366-369",2012,Sept. "A.Hachiya,S.Takata,Y.Komuro,Y.Matsumoto","Effects of V-Ion Doping on the Photoelectrochemical Properties of Epitaxial TiO2(110)Thin films on Nb-doped TiO2(110)Single Crystals",,"J.Phys.Chem.C",,"Vol. 116","No. 32","pp. 16951-16956",2012,July "S.Takata,R.Tanaka,A.Hachiya,Y.Matsumoto","Nanoscale Oxygen Nonstoichiometry in Expitaxial TiO2 Films Grown by Pulsed Laser Deposition",,"Journal of Applied Physics",,"Vol. 100",,"pp. 103513",2011,Nov. "Yuji Matsumoto,Shintaro Takata,Ryohei Tanaka,Atsushi Hachiya","Electrochemical Impedance Analysis of Electric Field Dependence of the Permittivity of SrTiO3 and TiO2 Single Crystals",,"Journal of Applied Physics",,"Vol. 109","No. 014112",,2011,Jan.