Nonlinear Optical Diagnostics of Thin Polycrystalline Lead Zirconate Titanate Films

被引：5

作者：

Elshin, A. S. ^{[1
]}

Pronin, I. P. ^{[2
]}

Senkevich, S. V. ^{[2
]}

Mishina, E. D. ^{[1
]}

机构：

[1] MIREA Russian Technol Univ, Moscow 119454, Russia

[2] Russian Acad Sci, Ioffe Inst, St Petersburg 194021, Russia

来源：

TECHNICAL PHYSICS LETTERS | 2020年 / 46卷 / 04期

关键词：

ferroelectric thin films; lead zirconate titanate; spherulitic structure; nonlinear optical diagnostics; second-harmonic generation; CRYSTALLIZATION;

D O I：

10.1134/S1063785020040215

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Nonlinear optical microscopy techniques have been used to study thin films of single-phase (perovskite) and two-phase (perovskite-pyrochlore) lead zirconate titanate (PZT) deposited on Pt/TiO2/SiO2/Si by means of radio-frequency magnetron sputtering at various target-substrate distances (D = 30-70 mm). Results revealed inhomogeneous distribution of second-harmonic generation in spherulitic perovskite islands, including increased signal intensity at perovskite/pyrochlore interface, which may be related to a nonuniform distribution of mechanical stresses. Factors responsible for the observed strong variation in second-harmonic signal are discussed, including the mutual relationship between changes in the character of spherulitic structure and conditions of PZT film deposition depending on the target-substrate distance.

引用

页码：385 / 388

页数：4

共 22 条

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