Effect of Ion Irradiation in Cadmium Niobate Pyrochlores

Journal Article · Fri May 16 04:00:00 EDT 2003 · Nuclear Instruments and Methods in Physics Research. Section B, Beam Interactions with Materials and Atoms, 207(1):85-91

DOI:https://doi.org/10.1016/S0168-583X(03)00526-3· OSTI ID:15007554

Jiang, Weilin; Weber, William J; Thevuthasan, Suntharampillai; Boatner, Lynn A

Irradiation experiments have been performed for cadmium niobate pyrochlore (CdNb2O) single crystals at both 150 and 300 K using 1.0 MeV Au ions over fluences ranging from 0.01 to 0.10 ions/nm. In-situ 3.0 MeV He Rutherford backscattering spectrometry along the <100>-axial channeling direction (RBS/C) has been applied to study the damage states ranging from small defect concentrations to a fully amorphous state. Results show that the crystal can be readily amorphized under the irradiation conditions. Room-temperature recovery of the defects produced at 150 K has been observed, while the defects produced at 300 K are thermally stable at room temperature. Results also indicate that the RBS/C analysis used in this study induced negligible damage in the near-surface regime. In addition, irradiation at and below room temperature using He and C3 ions leads to surface exfoliation at the corresponding damage peaks.

• Research Organization: Pacific Northwest National Laboratory (PNNL), Richland, WA (US), Environmental Molecular Sciences Laboratory (EMSL)
• Sponsoring Organization: USDOE
• DOE Contract Number: AC06-76RL01830
• OSTI ID: 15007554
• Report Number(s): PNNL-SA-36676; 3448; KC0201020
• Journal Information: Nuclear Instruments and Methods in Physics Research. Section B, Beam Interactions with Materials and Atoms, 207(1):85-91, Journal Name: Nuclear Instruments and Methods in Physics Research. Section B, Beam Interactions with Materials and Atoms, 207(1):85-91
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
Cadmium niobate
Irradiation effects
Pyrochlore
environmental molecular sciences laboratory