Local piezo- and ferroelectric properties of γ-glycine single crystal observed via piezoresponse force microscopy

被引：1

作者：

Ivanov, Maxim ^{[1
,2
]}

Buryakov, Arseniy ^{[3
]}

Khusyainov, Dinar ^{[4
]}

Silibin, Maxim ^{[5
]}

Vilarinho, Paula M. ^{[1
,2
]}

Paixao, Jose Antonio ^{[6
]}

机构：

[1] Univ Aveiro, Dept Mat & Ceram Engn, P-3810193 Aveiro, Portugal

[2] Univ Aveiro, Aveiro Inst Mat, CICECO, P-3810193 Aveiro, Portugal

[3] MIREA Russian Technol Univ RTU MIREA, Moscow 119454, Russia

[4] Radboud Univ Nijmegen, Inst Mol & Mat, NL-6525 AJ Nijmegen, Netherlands

[5] Natl Res Univ Elect Technol MIET, Zelenograd 124498, Moscow, Russia

[6] Univ Coimbra, Dept Phys, CFisUC, P-3004516 Coimbra, Portugal

来源：

PHYSICA SCRIPTA | 2023年 / 98卷 / 08期

关键词：

organic piezo- and ferroelectrics; & gamma; -phase glycine single crystal; piezoresponse force microscopy (PFM); BETA-GLYCINE; SURFACES;

D O I：

10.1088/1402-4896/ace861

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

In this work, we demonstrate an approach of local mechanical polishing processing to modify the type of intrinsic piezoelectric activity of ?-glycine polymorph grown in a form of a single crystal. By using the piezoresponse force microscopy, the increase in intensity for both out-of-plane (3 times) and in-plane (5 times) piezoelectric tensor components is demonstrated. Application of local switching spectroscopy reveals the piezoelectric behavior of non-polished and the ferroelectric behavior of polished areas being related to the local mechanical polishing-assistant rearrangement of NH (3+ ) tails of zwitterions in polymorph molecular chain of ?-glycine. These rearrangements were demonstrated to facilitate the switching behavior of the local dipole moment at the applied electric field surpassing the internal coercive field of about Ec & SIM; 3 G V /m .

引用

页数：6