Fabrication and electrical properties of KTN multilayer thin films

Wu, Hui; Wang, Shi Min; Xu, Zu Xun; Fu, Jiahui

doi:10.1016/s0167-577x(02)01368-x

Cited by 11 publications

(4 citation statements)

References 4 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In case of STO/CTO multilayers, very high compositional fluctuation, strain relaxation and interdiffusion at several interfaces during film growth rule out the sharp change of dielectric constant as a function of temperature [21]. As a result a broad dielectric peak has been observed around 273 K. The effect of various stacking and annealing sequence of multilayered films related to structural and dielectric properties have been discussed elsewhere [35].…”

Section: Electrical Propertiesmentioning

confidence: 99%

See 1 more Smart Citation

Structural and dielectric behavior of pulsed laser ablated Sr0.6Ca0.4TiO3 thin film and asymmetric multilayer of SrTiO3 and CaTiO3

Chakraborty¹,

Choudhury²,

Krupanidhi³

2011

Journal of Crystal Growth

View full text Add to dashboard Cite

Section: Electrical Propertiesmentioning

confidence: 99%

“…In recent years, it has been realized that the formation of multilayer of different materials in a constitutional mode can exhibit newer and better properties [8][9][10][11][19][20][21]. It is possible for such structures to show properties much different from their parent members.…”

Section: Introductionmentioning

confidence: 99%

Structural and dielectric behavior of pulsed laser ablated Sr0.6Ca0.4TiO3 thin film and asymmetric multilayer of SrTiO3 and CaTiO3

Chakraborty¹,

Choudhury²,

Krupanidhi³

2011

Journal of Crystal Growth

View full text Add to dashboard Cite

“…For decades, KTa 1−x Nb x O 3 (KTN)-based single crystals have exhibited several fascinating features, especially when approaching their paraelectric-ferroelectric phase transition, such as a giant quadratic electro-optic effect, abnormal electrostrictive effect, [1][2][3][4][5][6][7][8][9][10] and pyroelectric effect. 11,12 This extraordinary performance is attributed to their compositional disordering, which can introduce a short-range polar characteristic, indicating the existence of polar nanoregions (PNRs). 1,7,9,13 Based on these Xiangda Meng and Xiaolin Huang contributed equally to this work.…”

Section: Introductionmentioning

confidence: 99%

Dynamic of polar nanoregions and its impact on the pyroelectric and dielectric properties in paraelectric KTN materials

et al. 2023

View full text Add to dashboard Cite

The origin of the excellent properties of KTN‐based materials around Curie temperature (TC), which should be originated form the motion of polar nanoregions (PNRs), has attracted considerable research interest. In this paper, the relaxation of a KTa0.63Nb0.37O3 single crystal is discussed with the temperature dependence of permittivity. Moreover, its pyroelectric effect above TC is investigated. In detail, the pyroelectric coefficient decreases from ∼110.0 to ∼13.0 μC/(m2 K), with the temperature increasing from 22 to 33°C, and finally reduces to 0 at 100°C with PNRs disappear. Moreover, the dynamic dielectric nonlinearity for the KTN single crystal is studied in the paraelectric phase. To investigate these mechanisms, the amplitude and phase angle of the first and third harmonics under various electric fields, frequencies, and temperatures are analyzed. As a result, the motions of PNRs induced by electric field, which is pinned and depinned by the defect, are presented to explain the nonlinear dielectric response observed in the paraelectric KTN single crystal.

show abstract

“…The growth of barium-doped KT was already reported from our laboratory [10,11], but to our knowledge there are no reports on the investigations on the growth of bulk homogeneously-doped KT:Ba crystals. The investigations on the growth of KTN and KNTN thin films have been reported by several authors [12][13][14][15][16][17][18]. For the practical realization of optical devices such as waveguides and microresonators wide area (5 Â 5 mm 2 ) with flat as grown epilayers of uniform composition are needed.…”

Section: Introductionmentioning

confidence: 99%