Risultati di ricerca
The dead layer is also formed by chemical intermixing between the electrode and the ferroelectric film. Considering the HZO ferroelectric film, if its thickness is decreased below 5 nm, orthorhombic formation is suppressed, so the device's performance is decreased sharply.
15 giu 2016 · Abstract. Interfacial dead layer effect has been widely noticed in the past and was thought to be responsible for the critical thickness of ferroelectric thin film. Despite extensive studies, the origin is still under fierce debate. The dead layer even exists at the perfect interface without defects and impurities.
- Qiong Yang, Juexian Cao, Yichun Zhou, Lizhong Sun, Xiaojie Lou
- 2016
23 dic 2020 · Share. Tools. In this study, we investigate the effects of various electrodes on the ferroelectric properties of ultrathin HfZrO x (HZO) films. The ferroelectric polarization is totally suppressed in the HZO films with TiN and W bottom electrodes when the film thickness is below 5 nm.
2 ott 2023 · Manfred Fiebig & Morgan Trassin. Nature Materials 22 , 1492–1498 ( 2023) Cite this article. 8596 Accesses. 5 Citations. 11 Altmetric. Metrics. Abstract. Material surfaces encompass structural and...
12 ott 2006 · We demonstrate the existence of a dielectric dead layer by calculating the dielectric profile across the interface and analyse its origin by extracting the ionic and electronic contributions to...
- Massimiliano Stengel, Nicola A. Spaldin
- 2006
14 mar 2001 · Very large dielectric response of thin ferroelectric films with the dead layers. A. M. Bratkovsky and A. P. Levanyuk. Phys. Rev. B 63, 132103 – Published 14 March 2001. More. PDF Export Citation. Abstract. We study the dielectric response of ferroelectric (FE) thin films with the “dead” dielectric layer at the interface with electrodes.
12 mar 2009 · This dramatic drop in capacitance is attributed to the so-called “dead layer”—a low-permittivity layer at the metal-dielectric interface in series with the high-permittivity dielectric. The exact nature of the dead layer and the reasons for its origin still remain somewhat unclear.
