Real-time Raman measurements of graphite under Ar sup + irradiation

Journal Article · Mon Sep 23 00:00:00 EDT 1991 · Applied Physics Letters; (United States)

DOI:https://doi.org/10.1063/1.106279· OSTI ID:5170295

Nakamura, K; Kitajima, M ^[1]

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1. Second Research Group, Tsukuba Laboratories, National Research Institute for Metals, 1-2-1 Sengen, Tsukuba-shi, Ibaraki-ken 305 (Japan)

The time dependence of the Raman spectra of graphite is measured under 3-keV Ar{sup +}-ion irradiation by developing a real-time Raman measurement apparatus. An ion flux of 3{times}10{sup 11} ions/cm{sup 2} s is used and the time resolution of the Raman measurement is about 6 s. The lattice damage of graphite is evaluated by the relative intensity of the disorder-induced peak ({similar to}1360 cm{sup {minus}1}) with respect to the Raman active {ital E}{sub 2{ital g}{sub 2}} mode peak ({similar to}1580 cm{sup {minus}1}). An initial steep rise and a successive slow increase to saturation of the relative intensity ratio are observed.

• OSTI ID: 5170295
• Journal Information: Applied Physics Letters; (United States), Journal Name: Applied Physics Letters; (United States) Vol. 59:13; ISSN APPLA; ISSN 0003-6951
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360605* -- Materials-- Radiation Effects
ARGON IONS
CARBON
CHARGED PARTICLES
DAMAGE
ELEMENTAL MINERALS
ELEMENTS
GRAPHITE
IONS
LASER SPECTROSCOPY
MINERALS
NONMETALS
PHYSICAL RADIATION EFFECTS
RADIATION EFFECTS
RAMAN SPECTROSCOPY
REAL TIME SYSTEMS
SPECTROSCOPY