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Title: Ultrafast laser and swift heavy ion irradiation: Response of Gd2O3 and ZrO2 to intense electronic excitation

Journal Article · · Applied Physics Letters
DOI:https://doi.org/10.1063/1.4919720· OSTI ID:1370876
ORCiD logo [1]; ORCiD logo [2]; ORCiD logo [2]; ORCiD logo [2];  [3];  [4];  [2]
  1. Univ. of Michigan, Ann Arbor, MI (United States). Dept. of Nuclear Engineering and Radiological Sciences; Stanford Univ., CA (United States). Dept. of Geological Sciences
  2. Univ. of Michigan, Ann Arbor, MI (United States). Dept. of Materials Science and Engineering
  3. Univ. of Michigan, Ann Arbor, MI (United States). Dept. of Atmospheric, Oceanic and Space Sciences
  4. Stanford Univ., CA (United States). Dept. of Geological Sciences

In order to investigate the response of materials to extreme conditions, there are several approaches to depositing extremely high concentrations of energy into very small volumes of material, including ultrafast laser and swift heavy ion (SHI) irradiation. In this study, crystalline-to-crystalline phase transformations in cubic Gd2O3 and monoclinic ZrO2 have been investigated using ultrafast laser irradiation. The phases produced by the extreme conditions of irradiation were characterized by grazing incidence x-ray diffraction (GIXRD) and Raman spectroscopy. Gd2O3 exhibited a cubic-to-monoclinic phase transformation, as evidenced by the appearance of the monoclinic (40$$\bar{2}$$), (003), (310), and (112$$\bar{2}$$) peaks in the GIXRD pattern and of four Ag and three Bg Raman modes. ZrO2 underwent a monoclinic-to-tetragonal phase transformation, as evidenced by the emergence of the tetragonal (101) peak in the GIXRD pattern and of Eg and A1g Raman modes. The new phases formed by ultrafast laser irradiation are high temperature polymorphs of the two materials. No evidence of amorphization was seen in the GIXRD data, though Raman spectroscopy indicated point defect accumulation. These results are identical to those produced by irradiation with SHIs, which also deposit energy in materials primarily through electronic excitation. Finally, the similarity in damage process and material response between ultrafast laser and SHI irradiation suggests a fundamental relationship between these two techniques.

Research Organization:
Energy Frontier Research Centers (EFRC), Washington D.C. (United States). Materials Science of Actinides (MSA)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
Grant/Contract Number:
SC0001089; #DE SC0001089
OSTI ID:
1370876
Alternate ID(s):
OSTI ID: 1420462
Journal Information:
Applied Physics Letters, Vol. 106, Issue 17; Related Information: MSA partners with University of Notre Dame (lead); University of California, Davis; Florida State University; George Washington University; University of Michigan; University of Minnesota; Oak Ridge National Laboratory; Oregon state University; Rensselaer Polytechnic Institute; Savannah River National Laboratory; ISSN 0003-6951
Publisher:
American Institute of Physics (AIP)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 13 works
Citation information provided by
Web of Science

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Cited By (2)

Modeling the contribution of point defects to the Raman spectrum of crystalline materials journal July 2019
The effects of external fields in ceramic sintering journal September 2018