Pure ferroelectric polarization of lead-free Na0.5K0.5NbO3 thin films by using the double wave method

Autor:	Chang Won Ahn, Hai Joon Lee, Achiri Tange, Sung Sik Won, Hae Jin Seog, Bong Chan Park, Ill Won Kim
Rok vydání:	2015
Předmět:	Materials science Condensed matter physics business.industry General Physics and Astronomy Dielectric Polarization (waves) Ferroelectricity Condensed Matter::Materials Science Hysteresis Optics Sputtering Thin film business Electrical conductor Natural bond orbital
Zdroj:	Journal of the Korean Physical Society. 66:1401-1405
ISSN:	1976-8524 0374-4884
DOI:	10.3938/jkps.66.1401
Popis:	Na0.5K0.5NbO3 (NKN) thin films were grown on Pt(111)/Ti/SiO2/Si substrates by using RFmagnetron sputtering. We investigated the behavior of the ferroelectric polarization. Well-saturated P-V hysteresis loops were observed, but the P-V hysteresis loops were sometimes distorted and consisted of three roughly parallel components, such as ferroelectric, dielectric and conductive components. Correction methods were proposed to identify the undesirable components and the pure ferroelectric polarization components from the observed P-V hysteresis loops. A new polarization hysteresis loop measurement technique, the double wave method (DWM), was applied to NKN thin films to obtain pure ferroelectric polarization and elucidate the behaviors of the polarization components.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::be3d2663e726619cbf0538c24537fc5f https://doi.org/10.3938/jkps.66.1401 Zobrazit plný text záznamu Full text from SpringerLink