Barium strontium titanate thin film varactors for room-temperature microwave device applications

P Bao, TJ Jackson, X Wang… - Journal of physics D …, 2008 - iopscience.iop.org
Recent progress in the development of barium strontium titanate thin film varactors for room
temperature tunable microwave devices applications is reviewed, with emphasis on efforts …

Studies on ferroelectric perovskites and Bi‐layered compounds using micro‐Raman spectroscopy

PS Dobal, RS Katiyar - Journal of Raman Spectroscopy, 2002 - Wiley Online Library
This paper provides a review of a systematic micro‐Raman scattering study on various lead‐
and barium‐based ABO3 perovskites (A= Pb, La, Ba, Sr, Ce, Gd, Nd and B= Ti, Zr) …

Symbiotic MoO3–SrTiO3 Heterostructured Nanocatalysts for Sustainable Hydrogen Energy: Combined Experimental and Theoretical Simulations

SA Ali, J Ahmed, Y Mao, T Ahmad - Langmuir, 2023 - ACS Publications
Highly efficient Z-scheme MoO3–SrTiO3 heterostructured nanocatalytic systems were
engineered via a sol–gel chemical route and exploited in green H2 energy synthesis via …

Soft-mode hardening in SrTiO3 thin films

AA Sirenko, C Bernhard, A Golnik, AM Clark, J Hao… - Nature, 2000 - nature.com
Understanding the behaviour of the dielectric constant in ferroelectric thin films remains a
challenging problem. These ferroelectric materials have high static dielectric constants, and …

Dielectric, infrared, and Raman response of undoped ceramics: Evidence of polar grain boundaries

J Petzelt, T Ostapchuk, I Gregora, I Rychetský… - Physical Review B, 2001 - APS
Thorough Raman and infrared (IR) reflectivity investigations of nominally pure SrTiO 3
ceramics in the 10–300 K range have revealed a clear presence of the polar phase whose …

Hydrothermal-synthesized SrTiO3 photocatalyst codoped with rhodium and antimony with visible-light response for sacrificial H2 and O2 evolution and application to …

R Niishiro, S Tanaka, A Kudo - Applied Catalysis B: Environmental, 2014 - Elsevier
The codoping effect of antimony on the photocatalytic activity of visible-light-driven SrTiO 3
doped with rhodium (SrTiO 3: Rh) was investigated. SrTiO 3 doped with rhodium and …

Synthesis-Dependent First-Order Raman Scattering in SrTiO3 Nanocubes at Room Temperature

FA Rabuffetti, HS Kim, JA Enterkin, Y Wang… - Chemistry of …, 2008 - ACS Publications
Raman spectroscopy was used to demonstrate that the lattice dynamics of SrTiO3 (STO)
nanoparticles strongly depends on their microstructure, which is in turn determined by the …

Excitation and detection of acoustic phonons in nanoscale systems

RC Ng, A El Sachat, F Cespedes, M Poblet, G Madiot… - Nanoscale, 2022 - pubs.rsc.org
Phonons play a key role in the physical properties of materials, and have long been a topic
of study in physics. While the effects of phonons had historically been considered to be a …

First-principles study of ferroelectric and antiferrodistortive instabilities in tetragonal

N Sai, D Vanderbilt - Physical Review B, 2000 - APS
We carry out first-principles density-functional calculations of the antiferrodistortive (AFD)
and ferroelectric (FE) soft-mode instabilities in tetragonal SrTiO 3, with the structural degrees …

Effects of strain on the dielectric properties of tunable dielectric thin films

S Hyun, K Char - Applied Physics Letters, 2001 - pubs.aip.org
We fabricated an epitaxial Au/SrTiO 3 (001)/SrRuO 3 (or CaRuO 3)(001)/SrTiO 3 (or LaAlO
3)(001) heterostructure to investigate the effect of the strain on the epitaxial tunable dielectric …