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220chengeng: 金币+1, 感谢应助。 2012-11-30 19:16:06
annahit: 金币+30, 翻译EPI+1, ★★★★★最佳答案 2012-12-01 22:16:23
This demonstrates the entry of Mg2+ and Er3+ into the crystal lattice of lithium niobate and crystal structure changes a little. The radius of Mg2+ and Er3+ incorporated is different from that of Li+ and Nb5+ in the crystal lattice of lithium niobate,so the size, form of cell and the position of atom is slightly changed and in turn the position and intension of diffraction peak in the diffraction pattern changes.
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