Development of a high-pressure brillouin spectrometer and its application to an ethylene-vinyl acetate copolymer

Kim, Jae Hyun; Choi, Jin-Young; Jeong, Minseok; Ko, Jae‐Hyeon; Ahart, Muhtar; Ko, Young Ho; Kim, Kwang Joo

doi:10.3938/jkps.60.1419

Cited by 20 publications

(8 citation statements)

References 17 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…A solid state laser (Excelsior 532-300, SpectraPhysics) at a wavelength of 532 nm was used as an excitation source. The details of the Brillouin spectrometer can be found elsewhere 18 .…”

Section: Methodsmentioning

confidence: 99%

Lattice dynamics and antiferroelectricity inPbZrO3tested by x-ray and Brillouin light scattering

et al. 2014

Self Cite

View full text Add to dashboard Cite

We report the results of comprehensive study of the critical dynamics of the prototype perovskite antiferroelectric PbZrO3. The combination of inelastic X-ray and diffuse X-ray scattering techniques and Brillouin light scattering was used. It is found that the dispersion of the TA phonons is strongly anisotropic. The dispersion curve of the in-plane polarized TA phonons propagating in [1 1 0] direction demonstrates pronounced softening. Slowing down of the excitations at R-point is found, it is manifested in growing of the central peak. This slowing down is too weak to be considered as a primary origin of the corresponding order parameter. Obtained results are treated in terms of TA-TO flexoelectric mode coupling. It is demonstrated that the structural phase transformation in PbZrO3 can be considered as the result of the only intrinsic instability associated with the ferroelectric soft mode.

show abstract

“…A solid state laser (Excelsior 532-300, SpectraPhysics) at a wavelength of 532 nm was used as an excitation source. The details of the Brillouin spectrometer can be found elsewhere 18 .…”

Section: Methodsmentioning

confidence: 99%

Lattice dynamics and antiferroelectricity inPbZrO3tested by x-ray and Brillouin light scattering

et al. 2014

Self Cite

View full text Add to dashboard Cite

show abstract

“…This paper will be a complementary work to our previous report on the high-pressure Brillouin spectroscopy. [30] The acoustic properties obtained will be compared to previous studies on ethanol. [32,33] II.…”

Section: Introductionmentioning

confidence: 99%

“…Recently, Kim et al successfully developed a high-pressure Brillouin spectrometer and applied this technique to some amorphous materials. [30,31] The purpose of this study is to report the detailed optical configuration of the high-pressure Brillouin spectrometer set up at Hallym University, to describe the concrete experimental procedure in more detail, and to discuss the experimental results of acoustic properties of liquid ethanol under high pressure obtained by using this spectrometer. This paper will be a complementary work to our previous report on the high-pressure Brillouin spectroscopy.…”

Section: Introductionmentioning

confidence: 99%

“…Another advantage of the present setup is that it can be used for the pressure measurement by using the same microscope and the excitation source. One difference of this optical setup from our previous one [30] is that a right-angle scattering experiment can be carried out at the furnace location in Fig. 3 without backward scattering geometry as shown in Fig.1(b) b)…”

mentioning

confidence: 99%

See 1 more Smart Citation

Pressure Dependence of Acoustic Properties of Liquid Ethanol by using High-pressure Brillouin Spectroscopy

Ko¹,

Jeong²,

Lee³

et al. 2013

Korean Journal of Optics and Photonics

Self Cite

View full text Add to dashboard Cite

Brillouin spectroscopy has been widely used for the investigation of acoustic properties of condensed matters in the hypersonic region. A high-pressure Brillouin spectrometer was set up by combining a diamond anvil cell and a tandem multi-pass Fabry-Perot interferometer. It was successfully applied to liquid ethanol, and the pressure dependence of the sound velocity, the refractive index and other acoustic properties were derived based on the measurements. The detailed optical setup and experimental procedure are described.

show abstract

“…The details of the experimental setup may be found elsewhere. 16 3. Results Figure 1 shows the temperature dependence of the real part of the complex dielectric constant " 0 at a probe frequency of 3 MHz.…”

Section: Methodsmentioning

confidence: 99%

Influence of KF substitution on the ferroelectric phase transition of lead titanate single crystals studied by Brillouin light scattering

Shin

Tsukada

et al. 2015

J. Adv. Dielect.

Self Cite

View full text Add to dashboard Cite

The elastic properties of KF-substituted perovskite lead titanate (PbTiO 3 ) were investigated by dielectric measurements and Brillouin light scattering. The ferroelectric phase transition occurred at substantially lower temperature due to KF substitution, which was attributed to the modification of the covalency in Pb-O and Ti-O bonds. The longitudinal acoustic (LA) mode of KF-substituted PbTiO 3 showed a frequency softening in the paraelectric phase, which was accompanied by increasing acoustic damping. This indicated that polarization fluctuations responsible for the acoustic anomalies were enhanced by KF substitution.

show abstract

Development of a high-pressure brillouin spectrometer and its application to an ethylene-vinyl acetate copolymer

Cited by 20 publications

References 17 publications

Lattice dynamics and antiferroelectricity inPbZrO3tested by x-ray and Brillouin light scattering

Lattice dynamics and antiferroelectricity inPbZrO3tested by x-ray and Brillouin light scattering

Pressure Dependence of Acoustic Properties of Liquid Ethanol by using High-pressure Brillouin Spectroscopy

Influence of KF substitution on the ferroelectric phase transition of lead titanate single crystals studied by Brillouin light scattering

Contact Info

Product

Resources

About