Investigation of bulk and interfacial properties of Ba0.5Sr0.5TiO3 thin film capacitors

Abstract

Articles you may be interested inEffects of in-plane compressive stress on electrical properties of ( Ba,Sr)TiO 3 thin film capacitors prepared by on-and off-axis rf magnetron sputtering Epitaxial growth and planar dielectric properties of compositionally graded ( Ba 1−x Sr x ) TiO 3 thin films prepared by pulsed-laser deposition

Electric response as a function of applied voltage of Nb-doped Bi4Ti3O12 thin films

“…In order to clarify the interfacial problem, the frequency dependence of complex dielectric constant for some compounds in PZT and (Bi 2 O 2 ) 2+ (A m−1 B m O 3m+1 ) 2− systems has been studied. A remarkable low frequency dielectric dispersion below T c was observed in thin film capacitors of PZT [18], BST [19][20][21], Sr x Bi y Ta 2 O 9 (SBT) [8], Bi 2 Ti 2 O 7 [9], and Bi 4 Ti 3 O 12 [10]. It has been shown that this phenomenon greatly affects the electrical properties of the capacitors.…”

“…They proposed that the BLT thin film exhibits a fatigue-free characteristic and large remanent polarization. However, even if the BLT thin film is free from fatigue and imprint to simple Pt electrodes, they can also see an interfacial (electrode/bulk) problem similar to Pb(Zr x Ti 1−x ) O 3 (PZT) [18] and (Ba, Sr)TiO 3 (BST) [19][20][21] thin films. In order to clarify the interfacial problem, the frequency dependence of complex dielectric constant for some compounds in PZT and (Bi 2 O 2 ) 2+ (A m−1 B m O 3m+1 ) 2− systems has been studied.…”

Improvement of ferroelectric fatigue endurance in multiferroic (Ba0.5Sr0.5)TiO3∕(Bi1.05La0.05)FeO3∕(Ba0.5Sr0.5)TiO3 sandwich structures

“…A higher dielectric permittivity at lower frequency region is expected due to the increasing polarization contribution ͑consisting of interface, dipolar, ionic/atomic, and electronic͒ at the lower frequencies. 20 However, compared with the BLF film, permittivity of BST/BLF/BST structure exhibited a relatively weak frequency dependence. The dielectric constant of the trilayer structures is almost uniform at ϳ 180 throughout the measurement frequency.…”

Electric response as a function of applied voltage of Bi3.25La0.75Ti3O12 thin films grown by pulsed-laser deposition

“…In order to clarify the interfacial problem, the frequency dependence of complex dielectric constant for some compounds in PZT and (Bi 2 O 2 ) 2+ (A m−1 B m O 3m+1 ) 2− systems has been studied. A remarkable low frequency dielectric dispersion below T c was observed in thin film capacitors of PZT [18], BST [19][20][21], Sr x Bi y Ta 2 O 9 (SBT) [8], Bi 2 Ti 2 O 7 [9], and Bi 4 Ti 3 O 12 [10]. It has been shown that this phenomenon greatly affects the electrical properties of the capacitors.…”

“…: +82 55 740 1241; fax: +82 55 740 1240. (BST) [19][20][21] thin films. In order to clarify the interfacial problem, the frequency dependence of complex dielectric constant for some compounds in PZT and (Bi 2 O 2 ) 2+ (A m−1 B m O 3m+1 ) 2− systems has been studied.…”