Ion irradiation induced nano pattern formation on TiO2 single crystal

被引：11

作者：

Majumder, Subrata ^{[1
]}

Paramanik, D. ^{[2
]}

Solanki, V. ^{[1
]}

Mishra, I. ^{[1
]}

Avasthi, D. K. ^{[3
]}

Kanjilal, D. ^{[3
]}

Varma, Shikha ^{[1
]}

机构：

[1] Inst Phys, Bhubaneswar 751005, Orissa, India

[2] Katholieke Univ Leuven, B-3001 Heverlee, Belgium

[3] Inter Univ Accelerator Ctr, New Delhi 110067, India

来源：

APPLIED SURFACE SCIENCE | 2012年 / 258卷 / 09期

关键词：

PHASE-TRANSFORMATION;

D O I：

10.1016/j.apsusc.2011.11.067

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Nanodots have been fabricated on rutile TiO2(1 1 0) single crystals using Ar ion beam. Ion beam sputtering creates oxygen vacancies, leading to a 45 nm thick Ti rich layer, on the surface. Post-sputtering, rutile TiO2 also exhibits a decrease in the inter planar separation along [1 1 0] direction. Additionally, blueshift in the E-g Raman mode, representing the vibrations of oxygen atoms along c-axis, is also observed. Both these results suggest the development of a compressive stress along c-axis upon sputtering. Enhancement in intensity of A(1g) Raman mode also indicates modification in Ti-O vibrational influence. (C) 2011 Elsevier B. V. All rights reserved.

引用

收藏

页码：4122 / 4124

页数：3

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