On-line diffusion tracing in Li ionic conductors by the short-lived radioactive beam of8Li

Sun Chan Jeong, Ichiro Katayama, Hirokane Kawakami, Yutaka Watanabe, Hironobu Ishiyama, Nobuaki Imai, Yoshikazu Hirayama, Hiroari Miyatake, Masao Sataka, Hiroyuki Sugai, Satoru Okayasu, Shin Ichi Ichikawa, Katsuhisa Nishio, Shinichi Mitsuoka, Takamitsu Nakanoya, Takashi Hashimoto, Masahito Yahagi, Takanori Hashimoto

Research output: Contribution to journalArticlepeer-review

5 Citations (Scopus)


A non-destructive and on-line diffusion tracing in Li ionic conductors has been demonstrated. As the tracer, the pulsed beam of the short-lived 8L-emitting radioisotope of 8Li was implanted into a typical Li ionic conductor LiGa. By analyzing the time-dependent yields of the α-particles measured in coincident with the repetition cycle of the beam, the tracer diffusion coefficients were extracted with a good accuracy. The ordering of the Li vacancies in the Li-deficient β phase of LiGa wasobserved for the first time in terms ot the Li diffusion by the present method.

Original languageEnglish
Pages (from-to)6413-6415
Number of pages3
JournalJapanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers
Issue number8 PART 1
Publication statusPublished - 2008 Aug 8
Externally publishedYes


  • Diffusion coefficients
  • Li
  • Li ionic conductors
  • Order-disorder transformation
  • Short-lived radioactive diffusion tracer

ASJC Scopus subject areas

  • Engineering(all)
  • Physics and Astronomy(all)


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