Accumulation of ion beam induced disorder in strontium titanate

S. Thevuthasan, W. Jiang, V. Shutthanandan, W. J. Weber

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

Damage accumulation has been investigated in single crystal SrTiO3(100) irradiated with 1.0 MeV Au2+ by using in situ Rutherford backscattering spectrometry in channeling geometry (RBS/C). Samples were irradiated at temperatures of 170, 300 and 350 K with ion fluences ranging from 0.05 to 0.60 Au2+/nm2. The in situ RBS/C analysis indicates that the relative disorder in both Sr and Ti sublattices shows a strong sigmoidal dependence on ion dose. After an ion fluence of 0.30 Au2+/nm2 at 170 K, the buried region at the damage peak (∼60 nm) becomes fully amorphous, which corresponds to a dose of ∼0.39 dpa. For irradiation at 300 and 350 K, ion fluences of 0.40 Au2+/nm2 (∼0.52 dpa) and 0.45 Au2+/nm2 (∼0.59 dpa) are necessary to achieve an amorphous state at the damage peak, respectively.

Original languageEnglish
Pages (from-to)162-165
Number of pages4
JournalNuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms
Volume206
DOIs
Publication statusPublished - May 2003
Externally publishedYes

Fingerprint

Strontium
strontium
Ion beams
ion beams
disorders
Ions
fluence
Rutherford backscattering spectroscopy
damage
Spectrometry
backscattering
ions
dosage
Geometry
geometry
spectroscopy
sublattices
Dosimetry
Irradiation
Single crystals

Keywords

  • Amorphization
  • Atomic defects
  • Ceramics
  • Ion irradiation
  • Radiation effects

ASJC Scopus subject areas

  • Surfaces, Coatings and Films
  • Instrumentation
  • Surfaces and Interfaces

Cite this

Accumulation of ion beam induced disorder in strontium titanate. / Thevuthasan, S.; Jiang, W.; Shutthanandan, V.; Weber, W. J.

In: Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms, Vol. 206, 05.2003, p. 162-165.

Research output: Contribution to journalArticle

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