Results 31 to 40 of about 399,051 (306)

Dielectric behavior of Copper Tantalum Oxide

, 2003
A thorough investigation of the dielectric properties of Cu2Ta4O12, a material crystallizing in a pseudo-cubic, perovskite-derived structure is presented.
A. Loidl, A. Reller, B. Renner, Jonscher A. K., M. Schetter, Mott N. F., P. Lunkenheimer, S. G. Ebbinghaus   +7 more
core   +1 more source

A Field-Induced Re-Entrant Novel Phase and A Ferroelectric-Magnetic Order Coupling in HoMnO3 [PDF]

, 2004
A re-entrant novel phase has been observed in the hexagonal ferroelectric HoMnO3 in the presence of magnetic fields, in the temperature ranges defined by the plateau of the dielectric constant anomaly.
A. P. Litvinchuk, B. Lorenz, C. W. Chu, M. M. Gospodinov, N. Iwata, R. R. Birss   +5 more
core   +1 more source

Non-intrinsic origin of the Colossal Dielectric Constants in CaCu3Ti4O12

, 2004
The dielectric properties of CaCu3Ti4O12, a material showing colossal values of the dielectric constant, were investigated in a broad temperature and frequency range extending up to 1.3 GHz.
A. Loidl, A.K. Jonscher, P. Lunkenheimer, R. Fichtl, S. G. Ebbinghaus   +4 more
core   +1 more source

Effects of post-anneal conditions on the dielectric properties of CaCu3Ti4O12 thin films prepared on Pt/Ti/SiO2/Si substrates

, 2003
High-dielectric-constant CaCu3Ti4O12 (CCTO) thin films were prepared on Pt/Ti/SiO2/Si(100) substrates by pulsed-laser deposition. The 480 nm thick polycrystalline films have preferred orientation and show obvious crystallization on the surface.
Kolev N., Kotizsch A., Liang Fang, Mingrong Shen, Subramanian M. A., Wenwu Cao, Wu J. B., Yang C. F.   +7 more
core   +1 more source

Correlations of structural, magnetic, and dielectric properties of undoped and doped CaCu3Ti4O12 [PDF]

, 2009
The present work reports synthesis, as well as a detailed and careful characterization of structural, magnetic, and dielectric properties of differently tempered undoped and doped CaCu3Ti4O12 (CCTO) ceramics.
A. Collomb, A. Douy, A. Hassini, A. Krimmel, A. Loidl, A.P. Ramirez, B. Bochu, C. Autret-Lambert, C. Kant, C. Lacroix, C.C. Homes, D.C. Sinclair, F. Bourée, F. Gervais, F. Porcher, G. Deng, H. Toraya, I.D. Brown, J. Chenavas, J. Hemberger, J. Hemberger, J. Li, J. Lu, J. Rodriguez-Carvajal, J.G. Bednorz, J.H. Barrett, J.L. Zhang, K.A. Müller, L. He, M. Gervais, M. Li, M. Li, M. Maglione, M.A. Subramanian, M.A. Subramanian, M.H. Cohen, M.N. Deschizeaux, N.A. Vasil’ev, P. Fiorenza, P. Lunkenheimer, P. Lunkenheimer, P. Lunkenheimer, R. Weht, R.D. Shannon, R.K. Grubbs, S. Krohns, S. Krohns, S. Krohns, S.-Y. Chung, S.-Y. Chung, S.R. Elliott, T. Park, T.B. Adams, U. Schneider, V. Brize, V. Brize, V. Brizé, W. Kobayashi, W. Kobayashi, Y. Lin, Y. Zhu, Y.J. Kim   +61 more
core   +3 more sources

Mechanochemical Synthesis and Characterization of Nanostructured ErB4 and NdB4 Rare‐Earth Tetraborides

Advanced Engineering Materials, Volume 27, Issue 6, March 2025.
ErB4 and NdB4 nanostructured powders are produced by mechanochemical synthesis. 5 h mechanical alloying and 4 M HCl acid leaching are used in the production. ErB4 and NdB4 powders exhibit maximum magnetization of 0.4726 emu g−1 accompanied with an antiferromagnetic‐to‐paramagnetic phase transition at about TN = 18 K and 0.132 emu g−1 with a maximum at ...
Burçak Boztemur, Faruk Kaya, Bora Derin, Mustafa Lütfi Öveçoğlu, Ju Li, Duygu Ağaoğulları   +5 more
wiley   +1 more source

Effects of Lattice Types on the Frequency Band Widths in Photonic Crystals

مجلة علوم ذي قار, 2022
The plane wave expansion method was implemented in modeling and simulating the band structures of two dimensional photonic crystals (PhCs) with square, triangular and honeycomb lattices with circular air holes in dielectric or circular GaAs rods in air.
Ahmed M. Kadhim , Hassan A. Yasser
doaj   +1 more source

Epitaxial Thin Films of the Giant-Dielectric-Constant Material CaCu_3Ti_4O_{12} Grown by Pulsed-laser Deposition

, 2002
Pulsed-laser deposition has been used to grow epitaxial thin films of the giant-dielectric-constant material CaCu_3Ti_4O_{12} on LaAlO_3 and SrTiO_3 substrates with or without various conducting buffer layers.
Barnes, P. W., Cruz, E. M., Johnson, P. D., Ramirez, A. P., Si, W., Woodward, P.   +5 more
core   +1 more source

A Compact Spin‐Coated Graphene UWB Antenna for Breast Tumor Detection

Advanced Engineering Materials, EarlyView.
A compact, spin‐coated graphene ultra‐wideband patch antenna designed for breast tumor detection, capable of distinguishing between malignant and benign tumors. This innovative antenna can serve as an effective initial screening tool, particularly in resource‐limited settings such as rural areas, where access to advanced medical equipment like MRI and ...
Raja Rashidul Hasan, Shuvra Saha, Sumit Hassan Eshan, Rinku Basak, Md. Nahian Al Subri Ivan, Ahmed Murtuza Saleque, Raja Tariqul Hasan Tusher, Sadia Zabin, Md. Abdur Rahman, Yuen Hong Tsang   +9 more
wiley   +1 more source

DIELECTRIC CONSTANT [PDF]

, 2014
Citation: 'dielectric constant' in the IUPAC Compendium of Chemical Terminology, 3rd ed.; International Union of Pure and Applied Chemistry; 2006. Online version 3.0.1, 2019. 10.1351/goldbook.D01697 • License: The IUPAC Gold Book is licensed under Creative Commons Attribution-ShareAlike CC BY-SA 4.0 International for individual terms.
openaire   +2 more sources