The Structural Modification of LiTaO3 Crystal Induced by 100-keV H-ion Implantation
PANG Li-Long1,2, WANG Zhi-Guang1**, YAO Cun-Feng1, ZANG Hang3, LI Yuan-Fei1,2, SUN Jian-Rong1, SHEN Tie-Long1,2, WEI Kong-Fang1, ZHU Ya-Bin1,2, SHENG Yan-Bin1, CUI Ming-Huan1,2, JIN Yun-Fan1
1Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000 2Graduate University of Chinese Academy of Sciences, Beijing 100049 3Xi'an Jiaotong University, Xi'an 710049
The Structural Modification of LiTaO3 Crystal Induced by 100-keV H-ion Implantation
PANG Li-Long1,2, WANG Zhi-Guang1**, YAO Cun-Feng1, ZANG Hang3, LI Yuan-Fei1,2, SUN Jian-Rong1, SHEN Tie-Long1,2, WEI Kong-Fang1, ZHU Ya-Bin1,2, SHENG Yan-Bin1, CUI Ming-Huan1,2, JIN Yun-Fan1
1Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000 2Graduate University of Chinese Academy of Sciences, Beijing 100049 3Xi'an Jiaotong University, Xi'an 710049
摘要The effects of 100 keV H-ion implantation on the structure of LiTaO3 crystal are investigated by Raman and UV/VIS/NIR spectroscopies. The implantation fluence is in the range from 1.0×1013 to 1.0×1017 H+/cm2. The experimental results show the dependence of the crystal structure on ion fluence. It is found that the structural modification of the LiTaO3 crystal is due to two processes. One is H?ions occupying lithium vacancies (VLi), which is predominant at a fluence less than 1.0×1014 H+/cm2. This process causes the reduction of negative charge centers in the crystal and relaxation of distortion in the local lattice structure. The other is the influence of defects created during implantation, which plays a dominant role gradually in the structural modification at a fluence larger than 1.0×1015 H+/cm2.
Abstract：The effects of 100 keV H-ion implantation on the structure of LiTaO3 crystal are investigated by Raman and UV/VIS/NIR spectroscopies. The implantation fluence is in the range from 1.0×1013 to 1.0×1017 H+/cm2. The experimental results show the dependence of the crystal structure on ion fluence. It is found that the structural modification of the LiTaO3 crystal is due to two processes. One is H?ions occupying lithium vacancies (VLi), which is predominant at a fluence less than 1.0×1014 H+/cm2. This process causes the reduction of negative charge centers in the crystal and relaxation of distortion in the local lattice structure. The other is the influence of defects created during implantation, which plays a dominant role gradually in the structural modification at a fluence larger than 1.0×1015 H+/cm2.
(Absorption and reflection spectra: visible and ultraviolet)
引用本文:
PANG Li-Long, WANG Zhi-Guang, YAO Cun-Feng, ZANG Hang, LI Yuan-Fei, SUN Jian-Rong, SHEN Tie-Long, WEI Kong-Fang, ZHU Ya-Bin, SHENG Yan-Bin, CUI Ming-Huan, JIN Yun-Fan. The Structural Modification of LiTaO3 Crystal Induced by 100-keV H-ion Implantation[J]. 中国物理快报, 2012, 29(6): 66801-066801.
PANG Li-Long, WANG Zhi-Guang, YAO Cun-Feng, ZANG Hang, LI Yuan-Fei, SUN Jian-Rong, SHEN Tie-Long, WEI Kong-Fang, ZHU Ya-Bin, SHENG Yan-Bin, CUI Ming-Huan, JIN Yun-Fan. The Structural Modification of LiTaO3 Crystal Induced by 100-keV H-ion Implantation. Chin. Phys. Lett., 2012, 29(6): 66801-066801.
2012, Vol. 29 
