Formation of Ferroelectricity in Hafnium Oxide Based Thin Films

Name: Formation of Ferroelectricity in Hafnium Oxide Based Thin Films
Brand: Books on Demand
SKU: 9783743127296
Price: 6609 HUF
Availability: InStock

Szerző: Tony Schenk

Nyelv:

Kötés: Puha kötésű

Kiadó: Books on Demand

Elérhetőség: Beszállítói készleten

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In 2011, Böscke et al. reported the unexpected discovery of ferroelectric properties in hafnia based...

Információk a könyvről

Szerző

Tony Schenk

Nyelv

Angol

Kötés

Könyv - Puha kötésű

Kiadva

2017

oldal

192

EAN

9783743127296

ISBN

3743127296

Enbook ID

16051213

Kiadó

Books on Demand

Súly

236

Méretek

148 x 210 x 10

Teljes leírás

In 2011, Böscke et al. reported the unexpected discovery of ferroelectric properties in hafnia based thin films, which has since initiated many further studies and revitalized research on the topic of ferroelectric memories. In spite of many efforts, the unveiling of the fundamentals behind this surprising discovery has proven rather challenging. In this work, the originally claimed Pca21 phase is experimentally proven to be the root of the ferroelectric properties and the nature of this ferroelectricity is classified in the frame of existing concepts of ferroelectric materials. Parameters to stabilize this polar phase are examined from a theoretical and fabrication point of view. With these very basic questions addressed, the application relevant electric field cycling behavior is studied. The results of first-order reversal curves, impedance spectroscopy, scanning transmission electron microscopy and piezoresponse force microscopy significantly advance the understanding of structural mechanisms underlying wake-up, fatigue and the novel phenomenon of split-up/merging of transient current peaks. The impact of field cycling behavior on applications like ferroelectric memories is highlighted and routes to optimize it are derived. These findings help to pave the road for a successful commercialization of hafnia based ferroelectrics.

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Formation of Ferroelectricity in Hafnium Oxide Based Thin Films

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