We report the fabrication of BiFeo(3)/BiCrO3(111) artificial superlattices with 1/1 stacking in a layer-by-layer growth mode on atomically flat SrTio(3)(111) surfaces. While BiFeo(3) and BiCro(3) are antiferromagnets having Fe-O-Fe and Cr-O-Cr bon...
Koji Iijima   Masako Goto   Shogo Enomoto   Hideyuki Kunugita   Kazuhiro Ema   Masanori Tsukamoto   Noriya Ichikawa   Hiroshi Sakama   
JOURNAL OF LUMINESCENCE 128(5-6) 911-913 2008年5月 [査読有り]
This paper presents an investigation into the relaxation process of photo-excited carriers in anatase TiO2 thin films, in which the concentration of oxygen vacancy is controlled by annealing at various temperatures in an oxygen atmosphere. The inf...
JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS BRIEF COMMUNICATIONS & REVIEW PAPERS 46(7A) 4170-4171 2007年7月 [査読有り]
The dynamics of photoexcited carriers in standard TiO2 photocatalytic powders has been studied by investigating the time decay and temperature dependence of the photoluminescence. A biexponential decay curve in a time-resolved signal suggests that...
PHYSICS OF SEMICONDUCTORS, PTS A AND B 893 161-+ 2007年 [査読有り]
We have investigated the relaxation process of photo-excited carriers in anatase TiO2 films, in which the concentration of the oxygen vacancy is controlled by annealing in ultra high vacuum. A broad luminescence band peaked at 2.32 eV is ascribed ...