[15p-A409-1~11] 6.3 Oxide electronics

△ [15p-A409-6] Epitaxially stabilized single-crystalline pyrochlore Bi₂Rh₂O₇ thin films by interface control

〇Mizuki Ohno¹, Takahiro C. Fujita¹, Kawasaki Masashi^1,2 (1.Dept. of Appl. Phys., The Univ. of Tokyo, 2.RIKEN CEMS)

Keywords:thin film, pulse laser deposition, pyrochlore oxide

All reported studies of pyrochlore oxides A₂Rh₂O₇ with Rh⁴⁺ are performed by using bulk polycrystals because Rh³⁺ is stable. Most of the pyrochlore oxide thin films have been fabricated on YSZ substrates with good lattice matching, but in the case of Bi-Rh oxides, new layered compounds [Bi_nO_n]-[RhO₂] (n=2, 3) are stabilized on the YSZ substrates. Here we report the fabrication of Bi₂Rh₂O₇ by inserting a pyrochlore Eu₂Ti₂O₇ buffer layer on the YSZ(111) substrate by using pulsed laser deposition (PLD).