SrTiO_3（110）上水热法外延生长PbTiO_3薄膜

HYDROTHERMAL GROWTHOFEPITAXIAL PbTiO_3THIN FILM ON SrTiO_3(110)SUBSTRATE

利用低温水热合成工艺，在一定浓度比的Ｐｂ（ＮＯ）＿３，ＴｉＣｌ＿４的混合强碱性水溶液中，和在（１２０℃，０．２５ＭＰａ）的水热反应条件下，首次成功地在ＳｒＴｉＯ＿３（１１０）单晶衬底上生长出具有（１１０）面织构的ＰｂＴｉＯ＿３外延薄膜。Ｒｕｔｈｅｒｆｏｒｄ背散射／沟道（ＲＢＳ／Ｃ）分析表明薄膜外延质量较高，沟道最低产额（Ｘ＿（ｍｉｎ））达０．４２。

A(110)in-plane textured PbTiO_3 thin film has been successfully synthesized on SrTiO_3(110)single crystal substrate by using a new hydrothermal scheme.This technique involed submerging thesubstrate in an alkaline aqueous solution of Pb (NO_3)2 and TiCl_4 and holding the system under ahydrothermal condition of l20℃ and 0.25MPa. RBS/C analysis proved that a high quality epitaxialPbTiO_3 thin film with minimum yield (X_(min) of 0.42 was obtained。