Modification of Lithium Tantalate Implanted by 250 keV He-ions

PANG Li-long; WANG Zhi-guang; YAO Cun-feng; CUI Ming-huan; SUN Jian-rong; SHEN Tie-long; WEI Kong-fang; ZHU Ya-bin; SHENG Yan-bin; LI Yuan-fei; LI Jin-yu

doi:10.11804/NuclPhysRev.30.01.067

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Article Navigation > Nuclear Physics Review > 2013 > 30(1): 67-71

PANG Li-long, WANG Zhi-guang, YAO Cun-feng, CUI Ming-huan, SUN Jian-rong, SHEN Tie-long, WEI Kong-fang, ZHU Ya-bin, SHENG Yan-bin, LI Yuan-fei, LI Jin-yu. Modification of Lithium Tantalate Implanted by 250 keV He-ions[J]. Nuclear Physics Review, 2013, 30(1): 67-71. doi: 10.11804/NuclPhysRev.30.01.067

Citation:

PANG Li-long, WANG Zhi-guang, YAO Cun-feng, CUI Ming-huan, SUN Jian-rong, SHEN Tie-long, WEI Kong-fang, ZHU Ya-bin, SHENG Yan-bin, LI Yuan-fei, LI Jin-yu. Modification of Lithium Tantalate Implanted by 250 keV He-ions[J]. Nuclear Physics Review, 2013, 30(1): 67-71. doi: 10.11804/NuclPhysRev.30.01.067

Modification of Lithium Tantalate Implanted by 250 keV He-ions

doi: 10.11804/NuclPhysRev.30.01.067

Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China;

Received Date: 1900-01-01
Rev Recd Date: 1900-01-01
Publish Date: 2013-03-20

Abstract

The effects of 250 keV He + implantation in the fluence from 5.0x10¹⁴ to 5.0x10¹⁶ He⁺/cm² on lithium tantalate at room temperature were investigated by 3D surface profiler, XRD and UV-Vis optical absorption spectroscopies.The experimental results show that a large number of raised stripes appear on the surface of the sample and the significant lattice swelling occurs along the direction [ 001 ] at the fluence of 5.0x10¹⁶ He⁺/cm². The dependence of changes absorption edge on the fluences was revealed. After the samples had been exposed to the air for 60 days, the raised stripes on the surface have evolved into narrow cracks. Furthermore, the lattice strain and the optical absorption edge has also recovered dramatically. The relationship between surface morphology, lattice strain, optical absorption edge and behavior
of He-ions was discussed.
- Lithium tantalate,
- He-ions implantation,
- surface morphology,
- XRD,
- optical absorption edge
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通讯作者: 陈斌, bchen63@163.com

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沈阳化工大学材料科学与工程学院沈阳 110142

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Modification of Lithium Tantalate Implanted by 250 keV He-ions

doi: 10.11804/NuclPhysRev.30.01.067

Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China;

Received Date: 1900-01-01
Rev Recd Date: 1900-01-01
Publish Date: 2013-03-20

Key words:

Abstract: The effects of 250 keV He + implantation in the fluence from 5.0x10¹⁴ to 5.0x10¹⁶ He⁺/cm² on lithium tantalate at room temperature were investigated by 3D surface profiler, XRD and UV-Vis optical absorption spectroscopies.The experimental results show that a large number of raised stripes appear on the surface of the sample and the significant lattice swelling occurs along the direction [ 001 ] at the fluence of 5.0x10¹⁶ He⁺/cm². The dependence of changes absorption edge on the fluences was revealed. After the samples had been exposed to the air for 60 days, the raised stripes on the surface have evolved into narrow cracks. Furthermore, the lattice strain and the optical absorption edge has also recovered dramatically. The relationship between surface morphology, lattice strain, optical absorption edge and behavior
of He-ions was discussed.

Citation:

PANG Li-long, WANG Zhi-guang, YAO Cun-feng, CUI Ming-huan, SUN Jian-rong, SHEN Tie-long, WEI Kong-fang, ZHU Ya-bin, SHENG Yan-bin, LI Yuan-fei, LI Jin-yu. Modification of Lithium Tantalate Implanted by 250 keV He-ions[J]. Nuclear Physics Review, 2013, 30(1): 67-71. doi: 10.11804/NuclPhysRev.30.01.067