Physics of ferroelectric interfaces: An attempt at nanoferroelectric physics

Yukio Watanabe

Research output: Chapter in Book/Report/Conference proceedingChapter

5 Citations (Scopus)


Experiments on devices can be regarded as part of basic physics. Here, theoretical analyses of devices using the interface in a ferroelectric junction reveal novel basic properties unknown in conventional experiments. Devices using interfaces in ferroelectric junctions are grouped into two types: (1) the lateral-type, or field-effect, devices that use the transconductance, i.e., the conduction parallel to the interface; and (2) the vertical-type, or diode-like, devices, in which the conduction is perpendicular to the interface and the current flows through the ferroelectric. The discussion below concentrates on the field-effect type (1). On the other hand, the other type of devices have recently attracted intense interest due to the resistance RAM (R-RAM). Additionally, modulation of the tunneling current and the photovoltaic effect have been demonstrated. Details of these topics will be discussed elsewhere. We start our journey by assuming for the present that the ferroelectric is an ideal insulator.

Original languageEnglish
Title of host publicationFerroelectric Thin Films
Subtitle of host publicationBasic Properties and Device Physics for Memory Applications
PublisherSpringer Verlag
Number of pages23
ISBN (Print)3540241639, 9783540241638
Publication statusPublished - Feb 5 2005

Publication series

NameTopics in Applied Physics
ISSN (Print)0303-4216
ISSN (Electronic)1437-0859

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy (miscellaneous)


Dive into the research topics of 'Physics of ferroelectric interfaces: An attempt at nanoferroelectric physics'. Together they form a unique fingerprint.

Cite this