Damage evolution in Au-implanted Ho2Ti2O7 titanate pyrochlore

被引：13

作者：

Zhang, Yanwen ^{[1
]}

Jagielski, Jacek ^{[2
,3
]}

Bae, In-Tae ^{[4
]}

Xiang, Xia ^{[5
]}

Thome, Lionel ^{[6
]}

Balakrishnan, Geetha ^{[7
]}

Paul, Don M. ^{[7
]}

Weber, William J. ^{[1
]}

机构：

[1] Pacific NW Natl Lab, Richland, WA 99352 USA

[2] Inst Elect Mat Technol, PL-01919 Warsaw, Poland

[3] Andrzej Soltan Inst Nucl Studies, PL-05400 Otwock, Poland

[4] SUNY Binghamton, Small Scale Syst Integrat & Packaging Ctr, Binghamton, NY 13902 USA

[5] Univ Elect Sci & Technol China, Chengdu 610054, Peoples R China

[6] Univ Paris 11, CNRS, IN2P3,UMR 8609, Ctr Spectrometrie Nucl & Spectrometrie Masse, F-91405 Orsay, France

[7] Univ Warwick, Dept Phys, Coventry CV4 7AL, W Midlands, England

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS | 2010年 / 268卷 / 19期

关键词：

Damage accumulation; Amorphization; Holmium titanate pyrochlore; Irradiation; Rutherford backscattering spectroscopy; HEAVY-ION IRRADIATION; SELF-RADIATION DAMAGE; LEVEL NUCLEAR-WASTE; OXIDES; GD2TI2O7; AMORPHIZATION; ACCUMULATION; AL; IMMOBILIZATION; ZIRCONOLITE;

D O I：

10.1016/j.nimb.2010.05.029

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

Damage evolution at room temperature in Ho2Ti2O7 single crystals is studied under 1 MeV Au2+ ion irradiation by Rutherford backscattering spectroscopy along the (0 0 1) direction. For a better determination of ion-induced disorder profile, an iterative procedure and a Monte Carlo code (McChasy) were used to analyze ion channeling spectra. A disorder accumulation model, with contributions from the amorphous fraction and the crystalline disorder, is fit to the Ho damage accumulation data. The damage evolution behavior indicates that the relative disorder on the Ho sublattice follows a nonlinear dependence on dose and that defect-stimulated amorphization is the primary amorphization mechanism. Similar irradiation behavior previously was observed in Sm2Ti2O7. A slower damage accumulation rate for Ho2Ti2O7, as compared with damage evolution in Sm2Ti2O7, is mainly attributed to a lower effective cross section for defect-stimulated amorphization. (c) 2010 Elsevier B.V. All rights reserved.

引用

页码：3009 / 3013

页数：5

共 49 条

[1] Single crystal growth of rare earth titanate pyrochlores
Balakrishnan, G
Petrenko, OA
Lees, MR
Paul, DM
[J]. JOURNAL OF PHYSICS-CONDENSED MATTER, 1998, 10 (44) : L723 - L725
[2] Heavy-ion irradiation effects on structures and acid dissolution of pyrochlores
Begg, BD
Hess, NJ
Weber, WJ
Devanathan, R
Icenhower, JP
Thevuthasan, S
McGrail, BP
[J]. JOURNAL OF NUCLEAR MATERIALS, 2001, 288 (2-3) : 208 - 216
[3] Ewing R. C., 1995, Progress in Nuclear Energy, V29, P63, DOI 10.1016/0149-1970(94)00016-Y
[4] Ewing RC, 1996, NATO SCI S 1 DISARM, V4, P65
[5] AMORPHIZATION OF ZIRCONOLITE - ALPHA-DECAY EVENT DAMAGE VERSUS KRYPTON ION IRRADIATION
EWING, RC
WANG, LM
[J]. NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS, 1992, 65 (1-4) : 319 - 323
[6] Feldman L.C., 1982, MAT ANAL ION CHANNEL, P117
[7] GOODENOUGH JB, 1982, SOLID STATE CHEM, V44, P109
[8] ELECTRICAL AND CATALYTIC PROPERTIES OF SOME OXIDES WITH THE FLUORITE OR PYROCHLORE STRUCTURE - CO OXIDATION ON SOME COMPOUNDS DERIVED FROM GD2ZR2O7
KORF, SJ
KOOPMANS, HJA
LIPPENS, BC
BURGGRAAF, AJ
GELLINGS, PJ
[J]. JOURNAL OF THE CHEMICAL SOCIETY-FARADAY TRANSACTIONS I, 1987, 83 : 1485 - 1491
[9] Single-ion tracks in Gd2Zr2-xTixO7 pyrochlores irradiated with swift heavy ions
Lang, Maik
Lian, Jie
Zhang, Jiaming
Zhang, Fuxiang
Weber, William J.
Trautmann, Christina
Ewing, Rodney C.
[J]. PHYSICAL REVIEW B, 2009, 79 (22)
[10] The order-disorder transition in ion-irradiated pyrochlore
Lian, J
Wang, L
Chen, J
Sun, K
Ewing, RC
Farmer, JM
Boatner, LA
[J]. ACTA MATERIALIA, 2003, 51 (05) : 1493 - 1502

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