caa a22 4500 445827211 CHVBK 20180317145302.0 cr unu---uuuuu 170323e20110701xx s 000 0 eng 10.1007/s10854-010-0227-3 doi (NATIONALLICENCE)springer-10.1007/s10854-010-0227-3 Structure, dielectric and magnetic properties of Ba6FeNb9O30 tungsten bronze ceramics [Elektronische Daten] [P. Liu, S. Wu, X. Zhu, X. Chen, X. Liu] Ba6FeNb9O30 ceramics were synthesized by a standard solid-state sintering process. X-ray powder diffraction (XRD) refinements were carried out to analyze the crystal structure, and the dielectric, ferroelectric and magnetic properties were investigated and discussed. The tetragonal tungsten bronze structure in space group P4bm was determined with the lattice parameters: a=12.597(6) Å, b=12.597(6) Å, c=3.989(1) Å. An extremely high dielectric constant was indicated at higher temperatures, and it dropped quickly when the sample was cooled down through a critical temperature, and this critical temperature showed strong frequency dependence. This dielectric relaxation was more obviously observed in the dielectric loss curve. The nonlinear magnetic hysteresis curve was observed in the present ceramics at 5K, which was related to the magnetic ions (Fe3+) in tungsten bronze structure. Springer Science+Business Media, LLC, 2010 Liu P. Laboratory of Dielectric Materials, Department of Material Science and Engineering, Zhejiang University, 310027, Hangzhou, China aut Wu S. Laboratory of Dielectric Materials, Department of Material Science and Engineering, Zhejiang University, 310027, Hangzhou, China aut Zhu X. Laboratory of Dielectric Materials, Department of Material Science and Engineering, Zhejiang University, 310027, Hangzhou, China aut Chen X. Laboratory of Dielectric Materials, Department of Material Science and Engineering, Zhejiang University, 310027, Hangzhou, China aut Liu X. Laboratory of Dielectric Materials, Department of Material Science and Engineering, Zhejiang University, 310027, Hangzhou, China aut Journal of Materials Science: Materials in Electronics Springer US; http://www.springer-ny.com 22/7(2011-07-01), 866-871 0957-4522 22:7<866 2011 22 10854 https://doi.org/10.1007/s10854-010-0227-3 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10854-010-0227-3 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Liu P. Laboratory of Dielectric Materials, Department of Material Science and Engineering, Zhejiang University, 310027, Hangzhou, China aut NATIONALLICENCE 700 1- Wu S. Laboratory of Dielectric Materials, Department of Material Science and Engineering, Zhejiang University, 310027, Hangzhou, China aut NATIONALLICENCE 700 1- Zhu X. Laboratory of Dielectric Materials, Department of Material Science and Engineering, Zhejiang University, 310027, Hangzhou, China aut NATIONALLICENCE 700 1- Chen X. Laboratory of Dielectric Materials, Department of Material Science and Engineering, Zhejiang University, 310027, Hangzhou, China aut NATIONALLICENCE 700 1- Liu X. Laboratory of Dielectric Materials, Department of Material Science and Engineering, Zhejiang University, 310027, Hangzhou, China aut NATIONALLICENCE 773 0- Journal of Materials Science: Materials in Electronics Springer US; http://www.springer-ny.com 22/7(2011-07-01), 866-871 0957-4522 22:7<866 2011 22 10854 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer