Preparation and characterization of Bi-layer-structured multiferroic Bi5Ti3FeO15 thin films prepared by pulsed laser deposition

被引：27

作者：

Nakashima, Seiji ^{[1
]}

Nakamura, Yoshitaka ^{[1
]}

Yun, Kwi-Young ^{[1
]}

Okuyama, Masanori ^{[1
]}

机构：

[1] Osaka Univ, Grad Sch Engn Sci, Dept Syst Innovat, Div Adv Elect & Opt Sci, Osaka 5608531, Japan

来源：

JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS BRIEF COMMUNICATIONS & REVIEW PAPERS | 2007年 / 46卷 / 10B期

关键词：

multiferroic; thin film; Bi5Ti3FeO15; pulsed laser deposition (PLD); BLSFs;

D O I：

10.1143/JJAP.46.6952

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Bi-layer-structured multiferroic Bi5Ti3FeO15 (BTFO15) thin films have been fabricated on the Pt/TiO2/SiO2/Si substrate at a low temperature of similar to 520 degrees C and various 0, pressures of 0.01-0.12Torr by pulsed laser deposition, and their dielectric, ferroelectric, and magnetic properties have been characterized. The X-ray diffraction patterns of the BTFO15 thin films indicate the mixed phases of Bi5Ti3FeO15 and pyrochlore Bi2Ti2O7. The BTFO15 thin films (520 degrees C and 0.12Torr) show a good ferroelectric hysteresis loop, and a large double remanent polarization (2P(r)) of 32 mu C/cm(2) was obtained at a maximum applied electric field of 1120kV/cm (40V) despite the coexistence of the Bi5Ti3FeO15 and pyrochlore Bi2Ti2O7 phases. The magnetic M-H hysteresis measurement shows that a weak ferromagnetic characteristic was also obtained.

引用

页码：6952 / 6955

页数：4

共 11 条

[1] Designed ferromagnetic, ferroelectric Bi2NiMnO6 [J].