Results 191 to 200 of about 123,359 (254)

Tunable strontium titanate terahertz all-dielectric metamaterials

Journal of Physics D: Applied Physics, 2020
Based on SrTiO3 (STO) elliptical metamaterials (MMs) structures, the tunable propagation properties have been systematically investigated in the THz regime, including the effects of temperatures, incident angles, operation frequencies, and graphene Fermi
Xiaoyong He, F. Lin, Feng Liu, W. Shi
semanticscholar   +1 more source

Enhanced dielectric properties from barium strontium titanate films with strontium titanate buffer layers

Journal of Applied Physics, 2013
In order to enhance the permittivity and tunability of the dielectric component, a thin film dielectric composite consisting of a radio frequency sputtered SrTiO3 (STO) buffer layer and metalorganic solution deposited Mg-doped BaxSr1−xTiO3 (Mg-BST) thin film overgrowth was developed using affordable industry standard processes and materials. The effect
M. W. Cole, E. Ngo, C. Hubbard, S. G. Hirsch, M. Ivill, W. L. Sarney, J. Zhang, S. P. Alpay   +7 more
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Preparation of Barium Titanate/Strontium Titanate Multilayered Nanoparticles

Key Engineering Materials, 2011
Nucleation and particle growth conditions of barium titanate (BaTiO3, BT) were investigated for preparation of the BT/strontium titanate (SrTiO3, ST) multilayered nanoparticles. The conditions with and without BT nucleation were clarified. Epitaxial growth of the BT layer on the ST substrate particles was studied using both conditions. The formation of
Takayuki Goto, Kouichi Nakashima, Ichiro Fujii, Yoshihiro Kuroiwa, Yoji Makita, Satoshi Wada   +5 more
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Driving strontium titanate ferroelectric

Science, 2019
Physics Hidden phases are metastable collective states of matter that are typically not accessible on equilibrium phase diagrams. Nova et al. used infrared pulses to excite higher-frequency lattice modes that drive the crystal into a metastable ferroelectric phase, a phase that can persist for many hours. X. Li et al. used terahertz fields to drive the
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Scaling behaviour of strontium titanate

Journal of Physics: Condensed Matter, 1999
The dielectric susceptibility, = ´ - i´´, of nominally pure strontium titanate is measured between 4 and 70 K as a function of an external bias field. Static scaling analysis of the susceptibility reveals a very good scaling behaviour with a quasi-critical exponent a = /( - 1) = 2.00 ± 0.02 extracted consistently from two different experiments.
J Dec, W Kleemann, B Westwanski
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Synthesis of nanocrystalline strontium titanate by a sol–gel assisted solid phase method and its formation mechanism and photocatalytic activity

CrysteEngComm, 2019
Strontium titanate (SrTiO3) with a perovskite structure is widely applied to hydrogen production by photolysis water splitting.
Yuan Ma, Zhengjie Wu, Haiwang Wang, Guanqi Wang, Yukai Zhang, Pengcheng Hu, Yuanming Li, Dekuan Gao, Hong-Ting Pu, Bingzhu Wang, X. Qi   +10 more
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Strontium Titanate (SrTiO3)

1997
Publisher Summary Strontium Titanate (SrTiO3) crystallizes in the cubic perovskite structure. Therefore, the optical properties of this material are isotropic. SrTiO3 behaves like a ferroelectric material in the paraelectric phase. This property is referred to as incipient ferroelectric.
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Electronic Transport in Strontium Titanate

Physical Review, 1964
The conductivity and the Hall and Seebeck coefficients of reduced and doped strontium titanate were measured over the temperature range 4.2-300\ifmmode^\circ\else\textdegree\fi{}K. An average effective mass of about 10 ${m}_{0}$ was deduced from these experiments.
H. P. R. Frederikse, W. R. Thurber, W. R. Hosler   +2 more
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Unique Features of Strontium Titanate

Ferroelectrics, 2005
Some novel features of strontium titanate are presented. First, it reveals secondary ferroicity when exposed to an external electric field in its tetragonal paraelectric state. It is shown on isotopically doped SrTi 18 O 3 (STO18) that odd-oriented ferroelastic domains can be switched under anomalously large electrostriction such as to create a perfect
J. Dec, W. Kleemann, K. Boldyreva, M. Itoh   +3 more
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Enhanced Photocatalytic Activity of Hydrothermally Synthesized Perovskite Strontium Titanate Nanocubes

Topics in catalysis, 2022
Kiran Kenchappa Somashekharappa, K. Kiran, R. Shashanka, S. Lokesh   +3 more
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