Dielectric properties of hydrothermally grown gallium orthophosphate single crystals

Hirano, Shin‐ichi; Kim, Pan Chae; Orihara, Hiroshi; Umeda, Hiroshi; Ishibashi, Yoshihiro

doi:10.1007/bf00584883

Cited by 30 publications

(3 citation statements)

References 6 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The dissipation factor, tan δ, exhibits a similar behavior: it exhibits a value of 0.004 roughly temperature independently up to 300 K and increases above 350 K at higher temperatures when the frequency increases. The present dielectric behavior is consistent with that already reported in GaPO 4 .…”

Section: Resultssupporting

confidence: 93%

Density Functional Theory Prediction of the Second Harmonic Generation and Linear Pockels Effect in Trigonal BaZnO₂

et al. 2018

View full text Add to dashboard Cite

Polycrystalline powder of trigonal BaZnO2 has been synthesized and characterized by X-ray diffraction, dielectric measurements, and vibrational spectroscopy (infrared and Raman). These properties have been also calculated using the density functional theory and compared with the experimental ones. The experimental phonon modes have been assigned, and we have revisited the previous theoretical assignment reported in the literature combining the calculated and the experimental data. The dielectric constant has been analyzed by decoupling it into three contributions (electronic, phonon, and strain). The second-order nonlinear susceptibility and the electro-optic response have been predicted as no theoretical or experimental investigations of these optical properties have been previously reported in the literature. The second-order nonlinear optical susceptibility and the electro-optic coefficients of BaZnO2 are predicted to be significantly higher than those reported in α-quartz or α-GeO2. Thus, considering the stability of BaZnO2 within a large range of temperature, this compound could be a possible candidate for nonlinear optical applications when compared with α-quartz.

show abstract

Section: Resultssupporting

confidence: 93%

Density Functional Theory Prediction of the Second Harmonic Generation and Linear Pockels Effect in Trigonal BaZnO₂

et al. 2018

View full text Add to dashboard Cite

show abstract

“…These materials went largely unnoticed in the West until the presentation of two papers on langasite devices at the 1991 Frequency Control Symposium. 24 ' 27 To some, this represented the piezoelectric version of a Soviet "secret weapon" that had been deliberately hidden and hence triggered a "materials race" as the West rushed to catch up. In reality, however, the development of the calcium gallogermanates had not been hidden, 41 and the article "A New Piezoelectric Material, Langasite (La 3 Ga 5 SiOi 4 ), with a Zero Temperature Coefficient of the Elastic Vibration Frequency" by Andreev and Dubovik was readily available in the West.…”

Section: General Commentsmentioning

confidence: 98%

“…8 ' 1019 " 24 Gallium orthophosphate crystals have been grown hydrothermally in silica, pyrex, and teflon, 24 and tantalum-lined 19 autoclaves using sulfuric, phosphoric, and hydrochloric acid solutions. The material features a retrograde solubility in all acids; nutrient material is dissolved in the cold region and crystal growth occurs in the hot region of the autoclave.…”

Section: Crystal Growthmentioning

confidence: 99%

New Piezoelectric Substrates for Saw Devices

Kosinski

2000

Int. J. Hi. Spe. Ele. Syst.

View full text Add to dashboard Cite

Recent developments in single crystal piezoelectric materials have focused on the search for "ideal" materials with zero temperature coefficient of frequency orientations featuring jointly high piezoelectric coupling, high intrinsic Q, zero power flow angle, and minimized diffraction effects. In addition, the desired materials should have no low temperature phase transitions, and a physical chemistry conducive to repeatable, low cost growth and wafer scale device production. As difficult as it might seem to find such "ideal" materials, three completely different but strong candidate materials have emerged recently: the quartz homeotype gallium orthophosphate, the quartz isotype calcium gallogermanates (langasite, langanite, langatate, etc.), and diomignite (lithium tetraborate). The current state-of-the-art and prospects for future development of these materials are considered.

show abstract

Dielectric studies on sodium fluoroantimonate single crystals

Charles

Gnanam

1994

Cryst. Res. Technol.

View full text Add to dashboard Cite

show abstract

Dielectric properties of hydrothermally grown gallium orthophosphate single crystals

Cited by 30 publications

References 6 publications

Density Functional Theory Prediction of the Second Harmonic Generation and Linear Pockels Effect in Trigonal BaZnO₂

Density Functional Theory Prediction of the Second Harmonic Generation and Linear Pockels Effect in Trigonal BaZnO₂

New Piezoelectric Substrates for Saw Devices

Dielectric studies on sodium fluoroantimonate single crystals

Contact Info

Product

Resources

About

Dielectric properties of hydrothermally grown gallium orthophosphate single crystals

Cited by 30 publications

References 6 publications

Density Functional Theory Prediction of the Second Harmonic Generation and Linear Pockels Effect in Trigonal BaZnO2

Density Functional Theory Prediction of the Second Harmonic Generation and Linear Pockels Effect in Trigonal BaZnO2

New Piezoelectric Substrates for Saw Devices

Dielectric studies on sodium fluoroantimonate single crystals

Contact Info

Product

Resources

About

Density Functional Theory Prediction of the Second Harmonic Generation and Linear Pockels Effect in Trigonal BaZnO₂

Density Functional Theory Prediction of the Second Harmonic Generation and Linear Pockels Effect in Trigonal BaZnO₂