Ferroelectric memory characteristics of VDF/TrFE thin films

Takeo Furukawa; Takashi Nakajima; Ryosuku Abe; Yusuke Arayashiki; Syota Kanai; Yoshiyuki Takahashi

Ferroelectric memory characteristics of VDF/TrFE thin films

Takeo Furukawa, Takashi Nakajima, Ryosuku Abe, Yusuke Arayashiki, Syota Kanai, Yoshiyuki Takahashi

Research output: Contribution to conference › Paper › peer-review

Abstract

Ferroelectric switching characteristics were investigated by applying various forms of voltage pulses and measuring the time evolution of charge responses for 50-500nm-thick films of a VDF(75)/TrFE(25) copolymer. It is shown that he use of Au electrode reveals thickness-independent switching time and remanent polarization down to 50nmn unlike the previous reports on the films with Al electrode. The switching time depends on the various factors not only the applied electric field strength but also the previous poling conditions. Remarkable acceleration in polarization reversal is found to occur when the bipolar electric field short pulses is applied periodically. These results are discussed in relation to the memory characteristics such as imprint and fatigue effects.

Original language	English
Pages	4486-4487
Number of pages	2
Publication status	Published - 2005
Event	54th SPSJ Symposium on Macromolecules - Yamagata, Japan Duration: 20 Sept 2005 → 22 Sept 2005

Conference

Conference	54th SPSJ Symposium on Macromolecules
Country/Territory	Japan
City	Yamagata
Period	20/09/05 → 22/09/05

Keywords

Ferroelectric polymer memory
Polarization reversal
VDF/TrFE copolymer

Cite this

@conference{b75ca5c752cc49a1acdd8b7ee8b7c71e,

title = "Ferroelectric memory characteristics of VDF/TrFE thin films",

abstract = "Ferroelectric switching characteristics were investigated by applying various forms of voltage pulses and measuring the time evolution of charge responses for 50-500nm-thick films of a VDF(75)/TrFE(25) copolymer. It is shown that he use of Au electrode reveals thickness-independent switching time and remanent polarization down to 50nmn unlike the previous reports on the films with Al electrode. The switching time depends on the various factors not only the applied electric field strength but also the previous poling conditions. Remarkable acceleration in polarization reversal is found to occur when the bipolar electric field short pulses is applied periodically. These results are discussed in relation to the memory characteristics such as imprint and fatigue effects.",

keywords = "Ferroelectric polymer memory, Polarization reversal, VDF/TrFE copolymer",

author = "Takeo Furukawa and Takashi Nakajima and Ryosuku Abe and Yusuke Arayashiki and Syota Kanai and Yoshiyuki Takahashi",

year = "2005",

language = "English",

pages = "4486--4487",

}

TY - CONF

T1 - Ferroelectric memory characteristics of VDF/TrFE thin films

AU - Furukawa, Takeo

AU - Nakajima, Takashi

AU - Abe, Ryosuku

AU - Arayashiki, Yusuke

AU - Kanai, Syota

AU - Takahashi, Yoshiyuki

PY - 2005

Y1 - 2005

N2 - Ferroelectric switching characteristics were investigated by applying various forms of voltage pulses and measuring the time evolution of charge responses for 50-500nm-thick films of a VDF(75)/TrFE(25) copolymer. It is shown that he use of Au electrode reveals thickness-independent switching time and remanent polarization down to 50nmn unlike the previous reports on the films with Al electrode. The switching time depends on the various factors not only the applied electric field strength but also the previous poling conditions. Remarkable acceleration in polarization reversal is found to occur when the bipolar electric field short pulses is applied periodically. These results are discussed in relation to the memory characteristics such as imprint and fatigue effects.

AB - Ferroelectric switching characteristics were investigated by applying various forms of voltage pulses and measuring the time evolution of charge responses for 50-500nm-thick films of a VDF(75)/TrFE(25) copolymer. It is shown that he use of Au electrode reveals thickness-independent switching time and remanent polarization down to 50nmn unlike the previous reports on the films with Al electrode. The switching time depends on the various factors not only the applied electric field strength but also the previous poling conditions. Remarkable acceleration in polarization reversal is found to occur when the bipolar electric field short pulses is applied periodically. These results are discussed in relation to the memory characteristics such as imprint and fatigue effects.

KW - Ferroelectric polymer memory

KW - Polarization reversal

KW - VDF/TrFE copolymer

UR - http://www.scopus.com/inward/record.url?scp=33645555545&partnerID=8YFLogxK

M3 - Paper

AN - SCOPUS:33645555545

SP - 4486

EP - 4487

T2 - 54th SPSJ Symposium on Macromolecules

Y2 - 20 September 2005 through 22 September 2005

ER -

Ferroelectric memory characteristics of VDF/TrFE thin films

Abstract

Conference

Keywords

Other files and links

Fingerprint

Cite this