Swift heavy ions induced nano-grain fragmentation in fluoride thin films

被引：13

作者：

Kumar, Manvendra ^{[1
]}

Pandey, Ratnesh K. ^{[1
,4
]}

Rajput, Parasmani ^{[2
]}

Khan, S. A. ^{[3
]}

Singh, Fouran ^{[3
]}

Avasthi, D. K. ^{[3
,5
]}

Pandey, Avinash C. ^{[1
]}

机构：

[1] Univ Allahabad, Nanotechnol Applicat Ctr, Allahabad 211002, Uttar Pradesh, India

[2] Bhabha Atom Res Ctr, Atom & Mol Phys Div, Mumbai 400085, Maharashtra, India

[3] Inter Univ Accelerator Ctr, Post Box 10502, New Delhi 110067, India

[4] Univ Petr & Energy Studies, Coll Engn Studies, Dept Phys, Dehra Dun 248007, Uttar Pradesh, India

[5] Amity Univ, Noida 201303, India

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2017年 / 695卷

关键词：

Nanograin fragmentation; Thin films; Swift heavy ions; Track radius; Thermal spike; Fluoride; ENHANCED ELECTRON INJECTION; LITHIUM-FLUORIDE; OPTICAL MODIFICATIONS; TRACK FORMATION; COLOR-CENTERS; IRRADIATION; DAMAGE; NANOSTRUCTURES; DEVICES; GROWTH;

D O I：

10.1016/j.jallcom.2016.10.125

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：

Influence of the swift heavy ions (SHIs) at various ion fluences in nanodimensional polycrystalline fluoride thin films (LiF, CaF2 and BaF2) were investigated by glancing angle X-ray diffraction (GAXRD), complemented by atomic force microscopy (AFM). Nano-grain fragmentation is observed with increasing ion fluences as evident from the increase of the peak width in GAXRD pattern. It is also observed that after certain fluence SHIs irradiation, there is a saturation in the nano-grain fragmentation. The track radius and damage cross section are deduced from peak width and area of the dominant diffraction. The track radii are 5.5 and 14.5 nm, 5.0 and 9.7 nm and 5.5 and 6.5 nm for BaF2, LiF, CaF2, deduced from width and area, respectively. It is noteworthy that the track radius is found to be higher than the previously estimated from sputtering studies of LiF thin films. (C) 2016 Elsevier B.V. All rights reserved.

引用

页码：83 / 90

页数：8

共 64 条

[1] Ion tracks in silica for engineering the embedded nanoparticles
Avasthi, D. K.
Mishra, Y. K.
Singh, F.
Stoquert, J. P.
[J]. NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS, 2010, 268 (19) : 3027 - 3034
[2] Avasthi DK, 2011, SPRINGER SER MATER S, V145, P1, DOI 10.1007/978-94-007-1229-4
[3] Transient enhanced diffusion of oxygen in Fe mediated by large electronic excitation -: art. no. 153106
Avasthi, DK
Assmann, W
Tripathi, A
Srivastava, SK
Ghosh, S
Grüner, F
Toulemonde, M
[J]. PHYSICAL REVIEW B, 2003, 68 (15):
[4] Averback RS, 1998, SOLID STATE PHYS, V51, P281
[5] Mechanism of the monoclinic-to-tetragonal phase transition induced in zirconia and hafnia by swift heavy ions
Benyagoub, A
[J]. PHYSICAL REVIEW B, 2005, 72 (09):
[6] Nanometric size effects on irradiation of tin oxide powder
Berthelot, A
Hémon, S
Gourbilleau, F
Dufour, C
Dooryhée, E
Paumier, E
[J]. NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS, 1998, 146 (1-4) : 437 - 442
[7] Thin reactive LiF films for nuclear sensors
Cosset, F
Celerier, A
Barelaud, B
Vareille, JC
[J]. THIN SOLID FILMS, 1997, 303 (1-2) : 191 - 195
[8] Crouch K.C., 1967, ELASTIC CONSTANTS FL
[9] Creation of nanohillocks on CaF2 surfaces by single slow highly charged ions
El-Said, A. S.
Heller, R.
Meissl, W.
Ritter, R.
Facsko, S.
Lemell, C.
Solleder, B.
Gebeshuber, I. C.
Betz, G.
Toulemonde, M.
Moeller, W.
Burgdoerfer, J.
Aumayr, F.
[J]. PHYSICAL REVIEW LETTERS, 2008, 100 (23)
[10] Tuning the Fabrication of Nanostructures by Low-Energy Highly Charged Ions
El-Said, Ayman S.
Wilhelm, Richard A.
Heller, Rene
Sorokin, Michael
Facsko, Stefan
Aumayr, Friedrich
[J]. PHYSICAL REVIEW LETTERS, 2016, 117 (12)

← 1 2 3 4 5 6 7 →