Structural, vibrational and microwave properties of xLa(Mg1/2Ti1/2)O3–(1 − x)Ba(Mg1/3Nb2/3)O3

被引：0
作者：
Ram Awdhesh Kumar
Alo Dutta
T P Sinha
机构：
[1] Bose Institute,Department of Physics
来源：
Bulletin of Materials Science | 2021年 / 44卷
关键词：
Rietveld refinement; microwave dielectric; Raman spectroscopy;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Vibrational and microwave dielectric properties of xLa(Mg1/2Ti1/2)O3–(1−x)Ba(Mg1/3Nb2/3)O3 (x = 0.0, 0.1, 0.3, 0.5, 0.7, 0.9 and 1.0) synthesized by the solid-state reaction technique are investigated. The Rietveld refinement of the X-ray diffraction (XRD) data confirms that Ba(Mg1/3Nb2/3)O3 (x = 0.0) adopts the 1:2-ordered structure with trigonal P-3m1 space group, whereas La(Mg1/2Ti1/2)O3 (x = 1) has monoclinic P21/n crystal structure. Both the materials have single phase crystal structure. For x = 0.1, the sample is found to have double phase. Further, with the increase in the value of x, the crystal structure becomes monoclinic P21/n. The vibrational properties of the materials are studied by the Raman spectroscopy and are correlated with the structural parameters. All the materials show high dielectric constant (εr > 35) at microwave range. The factors affecting the microwave dielectric properties are discussed based on the vibrational and structural data.
引用
收藏
相关论文
共 99 条
  • [1] Cava RJ(2001)undefined J. Mater. Chem. 11 54-undefined
  • [2] Desu SB(1985)undefined J. Am. Ceram. Soc. 68 546-undefined
  • [3] O’Bryan HM(2003)undefined J. Electroceram. 11 5-undefined
  • [4] Tagantsev AK(1998)undefined J. Am. Ceram. Soc. 81 670-undefined
  • [5] Sherman VO(2013)undefined Ceram. Int. 30 3614-undefined
  • [6] Astafiev KF(2012)undefined Ceram. Int. 38 1127-undefined
  • [7] Venkatesh J(1995)undefined J. Am. Ceram. Soc. 78 3117-undefined
  • [8] Setter N(1991)undefined Jpn. J. Appl. Phys. 30 2347-undefined
  • [9] Akbas MA(2005)undefined J. Eur. Ceram. Soc. 25 2759-undefined
  • [10] Davies PK(2018)undefined J. Am. Ceram. Soc. 101 1974-undefined
12345678910