Chinese Optics Letters, 2020, 18 (2): 021901, Published Online: Jan. 7, 2020
Dynamic relaxation process of a 3D super crystal structure in a Cu:KTN crystal Download: 935次
Abstract
In this Letter, we report the existence and relaxation properties of a critical phenomenon on called a 3D super crystal that emerges at T = TC ? 3.5°C, that is, in the proximity of the Curie temperature of a Cu:KTN sample. The dynamics processes of a 3D super crystal manifest in its formation containing polarized nanometric regions and/or polarized clusters. However, with strong coupling and interaction of microcomponents, the characteristic relaxation time measured by dynamic light scattering demonstrates a fully new relaxation mechanism with a much longer relaxation time. As the relaxation mechanism of a relaxator is so-far undetermined, this research provides a novel perspective. These results can help structure a fundamental theory of ferroelectric relaxation.
Quanxin Yang, Xin Zhang, Hongliang Liu, Xuping Wang, Yingying Ren, Shan He, Xiaojin Li, Pengfei Wu. Dynamic relaxation process of a 3D super crystal structure in a Cu:KTN crystal[J]. Chinese Optics Letters, 2020, 18(2): 021901.