Substrate-induced dielectric polarization in thin films of lead-free (Sr_0.5Bi_0.5)₂Mn_2-xTi_xO_6-δ perovskites grown by pulsed laser deposition

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• 作者：I. Á ; lvarez-Serrano^a ; ^ias@ucm.es ; ^{iasfacultad@gmail.com} ; I. Ruiz de Larramendi^b ; M.L. Ló ; pez^a ; M.L. Veiga^a
• 关键词：Pulsed laser deposition ; Lead-free perovskite ; Dielectric polarization ; Relaxor
• 刊名：Applied Surface Science
• 出版年：2017
• 出版时间：31 March 2017
• 年：2017
• 卷：399
• 期：Complete
• 页码：387-395
• 全文大小：3427 K
• 卷排序：399

文摘

Highly oriented SrBiMn2-xTixO6 thin films are successfully fabricated by PLD. Thicknesses between 80 and 900 nm depending on x, substrate-type and chamber pressure. Compositional A-segregation controlled by the STO substrate orientation. Dielectric response analyzed under impedance and modulus formalisms. Relaxor phenomena obtained related to NPRs formation and compositional scenario.