FERROELECTRIC SCHOTTKY DIODE

Authors
BLOM PWM WOLF RM CILLESSEN JFM KRIJN MPCM
Citation
Pwm. Blom et al., FERROELECTRIC SCHOTTKY DIODE, Physical review letters, 73(15), 1994, pp. 2107-2110
Citations number
11
Categorie Soggetti
Physics
Journal title
Physical review letters → ACNP
ISSN journal
00319007
Volume
73
Issue
15
Year of publication
1994
Pages
2107 - 2110
Database
ISI
SICI code
0031-9007(1994)73:15<2107:FSD>2.0.ZU;2-3
Abstract
A Schottky contact consisting of a semiconducting ferroelectric materi al and a high work function metal shows a bistable conduction characte ristic. An on/off ratio of about 2 orders of magnitude was obtained in a structure consisting of a 0.2 mu m ferroelectric PbTiO3 film, a Au Schottky contact, and a La0.5Sr0.5CoO3 Ohmic bottom electrode. The obs ervations are explained by a model in which the depletion width of the ferroelectric Schottky diode is determined by the polarization depend ence of the internal electric field at the metal-ferroelectric interfa ce.