Fabrication of 90° Domain Structures in KNbO 3 Single Crystals

Autor:	Hiroyuki Kamio, Junji Hirohashi, Kazuhiro Yamada, Shiro Shichijyo
Rok vydání:	2003
Předmět:	Diffraction Materials science business.industry Coercivity Condensed Matter Physics Ferroelectricity Electronic Optical and Magnetic Materials Domain (software engineering) Domain wall (magnetism) Optics Electric field Optoelectronics business Refractive index Single crystal
Zdroj:	Ferroelectrics. 282:29-36
ISSN:	1563-5112 0015-0193
DOI:	10.1080/00150190303806
Popis:	New domain (90° domain) structure in the KNbO 3 single crystal could be fabricated by applying electric field at room temperature. The coercive electric field of 90° domain is very low (140 V/mm) compared with that of 180° domain (250 V/mm). A very sharp boundary was observed across the whole sample thickness (2 mm). Fabricated 90° domain structures were also confirmed by the (101) surface profile measurement using the optical interferrometer and two peaks of the 404 X-ray diffraction analysis. We also demonstrated the fabrication of periodically 90° domain structures with 200 w m period without generating unwanted domain structures. As 90° domain structure feels the difference of the refractive index, new applications other than 180° domain will be possible.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::bf194e41afec63b3c25021089df230a5 https://doi.org/10.1080/00150190303806 Zobrazit plný text záznamu