标题:Orientation dependence of swift heavy ion track formation in potassium titanyl phosphate
作者:Ma, Yu-Jie; Santiago, Pablo Mota; Rodriguez, Matias D.; Kremer, Felipe; Schauries, Daniel; Afra, Boshra; Bierschenk, Thomas; Llewellyn, 更多
作者机构:[Ma, Yu-Jie; Santiago, Pablo Mota; Rodriguez, Matias D.; Kremer, Felipe; Schauries, Daniel; Afra, Boshra; Bierschenk, Thomas; Llewellyn, David J.; Rid 更多
通讯作者:Kluth, Patrick
通讯作者地址:[Kluth, P]Australian Natl Univ, Res Sch Phys & Engn, Dept Elect Mat Engn, Canberra, ACT 2601, Australia.
来源:JOURNAL OF MATERIALS RESEARCH
出版年:2016
卷:31
期:15
页码:2329-2336
DOI:10.1557/jmr.2016.184
关键词:ion-solid interactions; defects
摘要:Potassium titanyl phosphate crystals in both x-cut and z-cut were irradiated with 185 MeV Au ions. The morphology of the resulting ion tracks was investigated using small angle x-ray scattering (SAXS), transmission electron microscopy (TEM), and atomic force microscopy (AFM). SAXS measurements indicate the presence of cylindrical ion tracks with abrupt boundaries and a density contrast of 1 +/- 0.5% compared to the surrounding matrix, consistent with amorphous tracks. The track radius depends on the crystalline orientation, with 6.0 +/- 0.1 nm measured for ion tracks along the x-axis and 6.3 +/- 0.1 nm for those along the z-axis. TEM images in both cross-section and plan-view show amorphous ion tracks with radii comparable to those determined from SAXS analysis. The protruding hillocks covering the sample surface detected by AFM are consistent with a lower density of the amorphous material within the ion tracks compared to the surrounding matrix. Simulations using an inelastic thermal-spike model indicate that differences in the thermal conductivity along the z- and x-axis can partially explain the different track radii along these directions.
收录类别:EI;SCOPUS;SCIE
WOS核心被引频次:2
Scopus被引频次:2
资源类型:期刊论文
原文链接:https://www.scopus.com/inward/record.uri?eid=2-s2.0-84969217999&doi=10.1557%2fjmr.2016.184&partnerID=40&md5=93630bce8f626cbe63a705cf6e29b9a8
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