Dielectric Properties of Barium Strontium Titanate (BST) Thin Films and Phase Shifters Based on BST Thin Films PDF Download
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Author: Xiaoyuan Zhou
Publisher:
ISBN:
Category : Barium compounds
Languages : en
Pages : 334
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Book Description
Author: Xiaoyuan Zhou
Publisher:
ISBN:
Category : Barium compounds
Languages : en
Pages : 334
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Book Description
Author: Gorur Govinda Raju
Publisher: CRC Press
ISBN: 1498765211
Category : Science
Languages : en
Pages : 774
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Book Description
Dielectrics in Electric Fields explores the influence of electric fields on dielectric—i.e., non-conducting or insulating—materials, examining the distinctive behaviors of these materials through well-established principles of physics and engineering. Featuring five new chapters, nearly 200 new figures, and more than 800 new citations, this fully updated and significantly expanded Second Edition: Analyzes inorganic substances with real-life applications in harsh working conditions such as outdoor, nuclear, and space environments Introduces methods for measuring dielectric properties at microwave frequencies, presenting results obtained for specific materials Discusses the application of dielectric theory in allied fields such as corrosion studies, civil engineering, and health sciences Combines in one chapter coverage of electrical breakdown in gases with breakdown in micrometric gaps Offers extensive coverage of electron energy distribution—essential knowledge required for the application of plasma sciences in medical science Delivers a detailed review of breakdown in liquids, along with an overview of electron mobility, providing a clear understanding of breakdown phenomena Explains breakdown in solid dielectrics such as single crystals, polycrystalline and amorphous states, thin films, and powders compressed to form pellets Addresses the latest advances in dielectric theory and research, including cutting-edge nanodielectric materials and their practical applications Blends early classical papers that laid the foundation for much of the dielectric theory with more recent work The author has drawn from more than 55 years of research studies and experience in the areas of high-voltage engineering, power systems, and dielectric materials and systems to supply both aspiring and practicing engineers with a comprehensive, authoritative source for up-to-date information on dielectrics in electric fields.
![Structural and Dielectric Properties of Ba[sub 0.6]r[sub 0.4]TiO[sub 3] Thin Films PDF](https://books.google.com/books/content/images/frontcover/6X1qnQAACAAJ?fife=w80-h100)
Author:
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ISBN:
Category :
Languages : en
Pages : 5
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Book Description
We report a systematic study of the structural and dielectric properties of barium strontium titanate, Ba{sub 0.6}Sr{sub 0.4}TiO3 (BST-0.4), films grown by pulsed laser deposition on LaAlO3 and MgO substrates. By optimizing the processing conditions, choosing appropriate substrate materials, and constructing layered architectures, we have successfully deposited BST-0.4 films on both LaAlO3 and MgO substrates with large dielectric nonlinearity and low dielectric loss. X-ray diffraction and transmission electron microscopy analyses reveal that the dielectric tunability and the dielectric loss are closely related to the crystallinity of the BST-0.4 films. We have also observed that a small variation of D value, defined as the ratio of in-plane lattice constant/out-of-plane lattice constant, can result in a significantly large change of dielectric properties of the BST films.
Author: Wan Shen
Publisher: Forschungszentrum Jülich
ISBN: 3893366083
Category :
Languages : en
Pages : 129
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Book Description
Author: K. M. Nair
Publisher: John Wiley & Sons
ISBN: 1118408179
Category : Technology & Engineering
Languages : en
Pages : 323
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Book Description
This proceedings contains papers presented at the Advanced Dielectric Materials: Design, Preparation, Processing and Applications; and Advanced Dielectrics for Wireless Communications symposia. Topics include design of material, materials synthesis and processing, processing-microstructure-property relationship, multilayer device materials, thin and thick films, device applications, low temperature co-fired ceramics (LTCC)for multilayer devices, microwave dielectric materials and much more.
Author: Dileep Singh
Publisher: John Wiley & Sons
ISBN: 1119494125
Category : Technology & Engineering
Languages : en
Pages : 358
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Book Description
Ceramic Transactions, Volume 264, Proceedings of the 12th Pacific Rim Conference on Ceramic and Glass Technology Dileep Singh, Manabu Fukushima, Young-Wook Kim, Kiyoshi Shimamura, Nobuhito Imanaka, Tatsuki Ohji, Jake Amoroso, and Michael Lanagan; Editors This proceedings contains a collection of 32 papers presented at the 12th Pacific Rim Conference on Ceramic and Glass Technology (PacRim12), May 21-26, 2017 in Waikoloa, Hawaii. PacRim is a bi-annual conference held in collaboration with the ceramic societies of the Pacific Rim countries - The American Ceramic Society, The Chinese Ceramic Society, The Korean Ceramic Society, and the Australian Ceramic Society. Topics included in this collection include multiscale modeling and simulation, processing and manufacturing, nanotechnology, multifunctional materials, ceramics for energy and the environment, biomedical materials, and more
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 9
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In this paper we investigate the microstructural accommodation of nonstoichiometry in (Ba(subscript x)Sr{sub 1-x}Ti{sub 1+y}O{sub 3+z}) thin films grown by chemical vapor deposition. Films with three different (Ba+Sr)/Ti ratios of 49/51 (y=0.04 in the notation of the formula above), of 48/52 (y=0.08) and of 46.5/53.5 (y=O.15), were studied. High-resolution electron microscopy is used to study the microstructure of the BST films. High-spatial resolution electron energy-loss spectroscopy (EELS) is used to reveal changes in chemistry and local atomic environment both at grain boundaries and within grains as a function of titanium excess. We find an amorphous phase at the grain boundaries and grain boundary segregation of excess titanium in the samples with y=0.15. In addition, EELS is also used to show that excess titanium is being partially accommodated in the grain interior. Implications for the film electrical and dielectric properties are outlined.
Author: Wei Pan
Publisher: Trans Tech Publications Ltd
ISBN: 3038131202
Category : Technology & Engineering
Languages : en
Pages : 2800
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Book Description
Volume is indexed by Thomson Reuters CPCI-S (WoS).
Author: Clive Randall
Publisher: John Wiley & Sons
ISBN: 0470196394
Category : Technology & Engineering
Languages : en
Pages : 272
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Book Description
Papers from The American Ceramic Society's 31st International Conference on Advanced Ceramics and Composites, held in Daytona Beach, Florida, January 21-26, 2007. Topics include advances in dielectric, piezoelectric and ferroelectric materials; electroceramic materials for sensors; thermoelectric materials for power conversion applications; and transparent conductive oxides.
Author: R. S. Katiyar
Publisher:
ISBN:
Category :
Languages : en
Pages : 12
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Book Description
Highly (100) oriented Ba(0.5)Sr(0.5)Ti(1-delta)Mn(delta)O3 thin films were deposited on (100) LaAlO3 (LAO) substrate by sol-gel technique. We have studied systematically the effect of Mn doping on the degree of texturing, surface morphology, dielectric properties and phase transition behavior of barium strontium titanate (BST) thin films. Up to 3 at% Mn doping the degree of (100) texturing and grain size of BST (50/50) thin films were markedly improved, which led to an increased tunability from 29% (undoped) to 39% (3 at% Mn doped); measured at 1 MHz and 2,34V/micrometer bias field. The transition and Curie-Weiss temperaturs of BST (50/50) thin films were found to be about 266 K and 185 K respectively, which confirmed the first order phase transition in the films. The variation of transition temperatures as a function of Mn doping contents in BST (50/50) thin films were influenced by the variation of stress state and surface morphology modifications induced by Mn doping. The bias field dependence of the dielectric constant and loss tangents of undoped and Mn doped films were analyzed in terms of a model based on Devonshire theory. Phase shift measurements showed that the degree of phase shift increases from 239 deg to 337 deg with 0 to 3 at% Mn doping. The insertion loss also increases from 5.4 dB (undoped) to 9.9 dB (3 at% Mn doped) with doping content so that there is no effective improvement in the kappa factor, which remains in the range of 33-44 deg/dB. Modification in surface morphology and film stoichiometry induced by Mn doping is thought to play significant role in observed phase shifter characteristics.
