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Irradiation-Induced Nanostructures in Cadmium Niobate Pyrochlores

Conference ·
OSTI ID:979577
This paper reports the formation processes of crystalline Cd nanostructures on ion-cut surfaces of cadmium niobate pyrochlores (Cd{sub 2}Nb{sub 2}O{sub 7}). Irradiation with 3 MeV He{sup +} ions has been performed at low temperatures (295 K) to induce material decomposition and aggregation of host atoms. The irradiation also leads to surface exfoliation due to rupture of gas (He and O{sub 2}) filled blisters. Nanoparticles and nanowires are observed on the ion-cut surfaces at low and higher doses, respectively. These structures are examined and characterized using a suite of experimental tools. Both the particles and wires are found to be single crystals that primarily consist of metallic Cd.
Research Organization:
Oak Ridge National Laboratory (ORNL)
Sponsoring Organization:
SC USDOE - Office of Science (SC)
DOE Contract Number:
AC05-00OR22725
OSTI ID:
979577
Country of Publication:
United States
Language:
English

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