title: [Study on far-infrared reflectivity spectra of microwave dielectric ceramic (RbBi)1/2MoO4].
abstract: The (RbBi)1/2 MoO4 ceramic was prepared via solid state reaction method. The room temperature far-infrared reflectivity spectra were measured and 15 vibration modes were observed. Kramers-Kronig (K-K) relationship was employed to fit infrared spectra. The optical frequency permittivity epsilon infinity is equal to 2. 17 for the dielectric materials, and the extrapolated value to microwave frequency (at about 9 GHz) is 20.56 and it is slightly smaller than the actual measured value -21.4. The calculated value of quality factor (Q x f) is 11 790 GHz, which is higher than the actual measured value -6 200 GHz, and it can be deduced that the quality factor of the (RbBi)1/2 MoO4 ceramic material has large room for improvement.
authors.affiliation: School of Science, Xi'an Polytechnic University, Xi'an 710048, China. wangjup@163.com
authors.forename: Qiu-Ping
authors.initials: QP
authors.lastname: Wang
authors.forename: Han-Chen
authors.initials: HC
authors.lastname: Liu