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Studies from Northwestern Polytechnic University Add New Findings in the Area of Physics Research (First-principles calculations of the dielectric...

July 29, 2014



Studies from Northwestern Polytechnic University Add New Findings in the Area of Physics Research (First-principles calculations of the dielectric and vibrational properties of ferroelectric and paraelectric BaAl2O4)

By a News Reporter-Staff News Editor at Physics Week -- Current study results on Physics Research have been published. According to news reporting originating from Shaanxi, People's Republic of China, by VerticalNews correspondents, research stated, "First-principles calculations have been conducted to study the structural, dielectric, and vibrational properties of ferroelectric and paraelectric BaAl2O4. High-frequency and static dielectric constants, and phonon frequencies at the Brillouin zone center are reported."

Our news editors obtained a quote from the research from Northwestern Polytechnic University, "Both BaAl2O4 polymorphs are promising infrared-transparent materials due to their low electronic dielectric constants. The ferroelectric and paraelectric BaAl2O4 have much smaller permittivity compared to the classical ferroelectric materials."

According to the news editors, the research concluded: "From an atomic nanostructure standpoint, the abnormally low permittivity of BaAl2O4 polymorphs is mainly related to low coordination numbers of Ba (9) and Al (4)."

For more information on this research see: First-principles calculations of the dielectric and vibrational properties of ferroelectric and paraelectric BaAl2O4. Physics Letters A, 2014;378(26-27):1867-1870. Physics Letters A can be contacted at: Elsevier Science Bv, PO Box 211, 1000 Ae Amsterdam, Netherlands. (Elsevier - www.elsevier.com; Physics Letters A - www.elsevier.com/wps/product/cws_home/505705)

The news editors report that additional information may be obtained by contacting C.W. Xie, Northwestern Polytechnic Univ, Sch Mat Sci & Engn, Xian 710072, Shaanxi, People's Republic of China. Additional authors for this research include Q.F. Zeng, D. Dong, S. Gao, Y.Q. Cai and A.R. Oganov.

Keywords for this news article include: Shaanxi, People's Republic of China, Asia, Physics Research

Our reports deliver fact-based news of research and discoveries from around the world. Copyright 2014, NewsRx LLC


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Source: Physics Week


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