2011
DOI: 10.1016/j.jallcom.2011.01.028
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Synthesis and conductivity of GdPO4 nanorods: Impacts of particle size and Ca2+ doping

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Cited by 17 publications
(14 citation statements)
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“…Clearly, the cubic lattice parameters with pyrochlore-phase structure display a rapid increase for x ≤ 0.05, and then gradual decrease for x ≥ 0.1, whereas the lattice parameters of the samples with defect fluorite structure are nearly half of the corresponding pyrochlore value. Since Ca 2+ possesses similar ionic radius to Gd 3+ other than Zr 4+ 36 38 , the excess Ca 2+ tends to be arranged in A-site. The substitution of Gd 3+ by a fraction of Ca 2+ is favorable to the pyrochlore-phase structure as the ionic radius of Ca 2+ is slightly larger than that of Gd 3+ 36 , 37 , which makes the ionic radius ratio of r(Gd 3+ -Ca 2+ ) average /r(Zr 4+ ) larger than 1.46 and inevitably creates larger A-site volume.…”
Section: Resultsmentioning
confidence: 99%
See 1 more Smart Citation
“…Clearly, the cubic lattice parameters with pyrochlore-phase structure display a rapid increase for x ≤ 0.05, and then gradual decrease for x ≥ 0.1, whereas the lattice parameters of the samples with defect fluorite structure are nearly half of the corresponding pyrochlore value. Since Ca 2+ possesses similar ionic radius to Gd 3+ other than Zr 4+ 36 38 , the excess Ca 2+ tends to be arranged in A-site. The substitution of Gd 3+ by a fraction of Ca 2+ is favorable to the pyrochlore-phase structure as the ionic radius of Ca 2+ is slightly larger than that of Gd 3+ 36 , 37 , which makes the ionic radius ratio of r(Gd 3+ -Ca 2+ ) average /r(Zr 4+ ) larger than 1.46 and inevitably creates larger A-site volume.…”
Section: Resultsmentioning
confidence: 99%
“…Since Ca 2+ possesses similar ionic radius to Gd 3+ other than Zr 4+ 36 38 , the excess Ca 2+ tends to be arranged in A-site. The substitution of Gd 3+ by a fraction of Ca 2+ is favorable to the pyrochlore-phase structure as the ionic radius of Ca 2+ is slightly larger than that of Gd 3+ 36 , 37 , which makes the ionic radius ratio of r(Gd 3+ -Ca 2+ ) average /r(Zr 4+ ) larger than 1.46 and inevitably creates larger A-site volume. However, Ca 2+ can only substitute for a fraction of Gd 3+ because the extent of lattice distortion of pyrochlore structure is limited.…”
Section: Resultsmentioning
confidence: 99%
“…39 Using K e = 4.3 Â 10 À4 S m À1 determined in the previous section, eqn (23) leads then to Da 0 /k B T E 10 À13 m 2 V À2 and therefore B 0 0 = 10 À9 m V À2 { B exp 0 E 10 À6 m V À2 as reported in Fig. 39 Using K e = 4.3 Â 10 À4 S m À1 determined in the previous section, eqn (23) leads then to Da 0 /k B T E 10 À13 m 2 V À2 and therefore B 0 0 = 10 À9 m V À2 { B exp 0 E 10 À6 m V À2 as reported in Fig.…”
Section: B Determination Of the Kerr Coefficient And Comparison Withmentioning
confidence: 99%
“…Wang and co‐workers have synthesized nanorod‐like Ca 2+ doped GdPO 4 by hydrothermal process at 160 °C for 12 h with different pH values. The pH only modified the nanorods sizes and GdPO 4 exhibited the hexagonal phase . Zhang et al have prepared GdPO 4 by another hydrothermal process at 220 °C for 17 h with pH 2 and obtained nanowires with monoclinic phase.…”
Section: Introductionmentioning
confidence: 99%