Dielectric relaxor behavior of Cd2Nb2O7

Yu, Zhi; Chen, Ang

doi:10.1063/1.1775038

Cited by 11 publications

(4 citation statements)

References 23 publications

(12 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…that is referred to as the complex mass scheme (CMS) [15]. The latter has the advantage that it preserves the lowest order Ward identities, which minimizes gauge invariance violation effects caused by (6).…”

Section: Details Of Calculationmentioning

confidence: 99%

“…Since the original work of the early 1990's [2] reaction (1) has received a lot of attention in literature. The quantum chromodynamics (QCD) radiative corrections to it were calculated in [5], O(α) EW corrections were calculated in [6] and full O(α) EW and O(α s ) QCD corrections were studied in [7]. Reaction (1) was considered in the kinematic region where the Higgs boson energy is close to its maximal energy in [8].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Off resonance background effects in

Kołodziej

Szczypinski

2008

Nuclear Physics B

View full text Add to dashboard Cite

The top quark Yukawa coupling to the intermediate mass Higgs boson can be determined in the reaction e + e − → ttH that, after taking into account decays, will be detected at the International Linear Collider through reactions with 8 particles in the final state. Such 2 → 8 reactions receive contributions from tens thousands of Feynman diagrams, already in the lowest order of Standard Model, most of which comprise background to resonant associated production and decay of the top quark pair and Higgs boson. We illustrate the background effects by comparing cross sections of three reactions, which represent different detection channels of e + e − → ttH, calculated with the complete sets of the lowest order Feynman diagrams with the corresponding signal cross sections calculated with the diagrams of associated production and decay of off mass shell top quark pair and Higgs boson only. The comparison that is performed with different selections of cuts shows that the background effects are sizeable, but they can be reduced by appropriate choice of cuts.

show abstract

Section: Details Of Calculationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Off resonance background effects in

Kołodziej

Szczypinski

2008

Nuclear Physics B

View full text Add to dashboard Cite

show abstract

“…An index guided mode generally shows a small group velocity near the band edge which eventually vanishes at the Brillouin zone edge. A simple parabolic approximation can be considered: 22) ! % Ák…”

Section: Flat Band and Slow Light Performancementioning

confidence: 99%

Flat Band Slow Light Performance in Dual-Slot Silicon-on-Insulator Based Photonic Crystal Waveguide

Tian

Zhou

Zhai

et al. 2013

Jpn. J. Appl. Phys.

View full text Add to dashboard Cite

The photonic band structure and slow light performance in dual-slot photonic crystal waveguide based on silicon-on-insulator (SOI) substrate are studied by using three-dimensional (3D) plane wave expansion method. The numerical results show that both the position and the width of the slots have significant effect on photonic band structure. The guided mode edge and the photonic band gap increases with the increasing of the two slots' widths. When slots move close to the boundary of the waveguide, a flat band of slow light appears. The slow light property has also been discussed by modifying the radius of the two rows of air holes nearest to the dual-slot waveguide. The negligible dispersion bandwidths ranging from 6.70 to 25.70 nm for group indices from 62 to 20 are obtained, respectively. The numerical results show that the proposal structure has potential application in optical buffer.

show abstract

“…Many superlattices have been fabricated and studied, including BaTiO 3 /SrTiO 3 [12,15,[20][21][22][23][24][25][26][27][28], PbTiO 3 /SrTiO 3 [8, 11, 14. 29, 30], KTaO 3 /KNbO 3 [31][32][33], SrTiO 3 /BaTiO 3 /CaTiO 3 [34,35], as well as relaxor superlattices [36][37][38][39][40][41].…”

Section: Introductionmentioning

confidence: 99%

Recent Applications of Landau-Ginzburg Theory to Ferroelectric Superlattices: A Review

Chew

2012

SSP

View full text Add to dashboard Cite

This article briefly reviews recent developments of Landau-Ginzburg theory to ferroelectric phase transitions in superlattices. An overview of the contributions of Landau-type theory to study ferroelectric superlattices is given. Recent findings from first-principles calculations and experiments on intermixing, local polarization coupling and polar discontinuity at interfaces that are not address in these contributions are highlighted. This is followed by a review of recent developments of Landau-Ginzburg theory that addresses these emergent phenomena at interfaces, which is the focus of this review article. The Landau-Ginzburg approach to ferroelectric superlattices with spatial distribution of polarization is outlined. It describes the formation of intermixed layer with properties different from those of both layers. These intermixed layers are mutually coupled through the local polarization at interfaces. Polarization continuity or continuity at interfaces is determined by the nature of the intermixed layer formed at the interface region. Recent results obtained in investigating superlattices comprised primarily of ferroelectric and paraelectric materials are discussed. The results include modulated polarizations, phase transitions, dielectric susceptibilities and switching behaviors.

show abstract

Dielectric relaxor behavior of Cd2Nb2O7

Cited by 11 publications

References 23 publications

Off resonance background effects in

Off resonance background effects in

Flat Band Slow Light Performance in Dual-Slot Silicon-on-Insulator Based Photonic Crystal Waveguide

Recent Applications of Landau-Ginzburg Theory to Ferroelectric Superlattices: A Review

Contact Info

Product

Resources

About