메뉴 건너뛰기




Volumn 60, Issue 15, 1999, Pages 10616-10619

Bi-self-trapped-exciton model for frenkel defect formation in amorphous (formula presented) by proton irradiation

Author keywords

[No Author keywords available]

Indexed keywords


EID: 0000488131     PISSN: 10980121     EISSN: 1550235X     Source Type: Journal    
DOI: 10.1103/PhysRevB.60.10616     Document Type: Article
Times cited : (13)

References (35)
  • 17
    • 85037900853 scopus 로고    scopus 로고
    • It is more appropriate to define EED as the electronic energy deposition per unit volume to obtain the electron-hole pair concentration. For laser irradiation, EED distribution is approximately uniform. For ion and electron irradiation, EED can be assumed to be distributed uniformly over the adiabatic radius (Formula presented) (see text or Ref. 23). Moreover, the energy variation of (Formula presented) is relatively weak. Thus the EED distribution per unit volume can be approximated by EED per unit length (Formula presented) This approximation is supported by the fact that the defect formation by electrons (Ref. 13) and ions (Refs. 14 and 15) is found to be nearly proportional to (Formula presented) For x- and γ-ray irradiation, the situation is more complicated because photoionization and Compton processes play a role.
    • It is more appropriate to define EED as the electronic energy deposition per unit volume to obtain the electron-hole pair concentration. For laser irradiation, EED distribution is approximately uniform. For ion and electron irradiation, EED can be assumed to be distributed uniformly over the adiabatic radius (Formula presented) (see text or Ref. 23). Moreover, the energy variation of (Formula presented) is relatively weak. Thus the EED distribution per unit volume can be approximated by EED per unit length (Formula presented) This approximation is supported by the fact that the defect formation by electrons (Ref. 13) and ions (Refs. 14 and 15) is found to be nearly proportional to (Formula presented) For x- and γ-ray irradiation, the situation is more complicated because photoionization and Compton processes play a role.
  • 26
    • 0000018939 scopus 로고
    • It was pointed out in Ref. 18 that the STE lifetime is shorter than 10 ms, but this does not affect the discussion in this study.
    • J. H. Stathis and M. Kastner, Phys. Rev. B 35, 2972 (1987).It was pointed out in Ref. 18 that the STE lifetime is shorter than 10 ms, but this does not affect the discussion in this study.
    • (1987) Phys. Rev. B , vol.35 , pp. 2972
    • Stathis, J.H.1    Kastner, M.2
  • 33
    • 85037885173 scopus 로고    scopus 로고
    • ICRU Report No. 37, Stopping Powers for Electrons and Positrons (1984).
    • ICRU Report No. 37, Stopping Powers for Electrons and Positrons (1984).
  • 34
    • 0001155530 scopus 로고
    • )]. Yet, this effect may not simply result in the linear EED dependence of the defect formation.
    • There is a possibility that the two excitons are created in one or two (Formula presented) units due to fluctuation of the EED into the valence bands. The fluctuation is estimated to be ∼60 eV per (Formula presented) unit from the energy straggling of high energy (Formula presented) (independent of energy) [E. Bonderup and P. Hvelplund, Phys. Rev. A 4, 562 (1971)]. Yet, this effect may not simply result in the linear EED dependence of the defect formation.
    • (1971) Phys. Rev. A , vol.4 , pp. 562
    • Bonderup, E.1    Hvelplund, P.2


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.