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Journal Articles

Strong anti-stokes luminescence from H$$^{+}$$-irradiated diamond

Xu, Y.; Naramoto, Hiroshi; Narumi, Kazumasa; Miyashita, Kiyoshi*; Kamiya, Tomihiro; Sakai, Takuro

Applied Physics Letters, 83(10), p.1968 - 1970, 2003/09

https://doi.org/10.1063/1.1608465
 Times Cited Count：6 Percentile：28.18(Physics, Applied)

no abstracts in English

Journal Articles

Effect of ion irradiation on C$$_{60}$$ thin films

Narumi, Kazumasa; Xu, Y.; Miyashita, Kiyoshi*; Naramoto, Hiroshi

European Physical Journal D, 24(1-3), p.385 - 388, 2003/06

https://doi.org/10.1140/epjd/e2003-00150-5
 Times Cited Count：4 Percentile：22.99(Optics)

The structural changes have been investigated in C$$_{60}$$ thin films irradiated with 7-MeV $$^{12}$$C$$^{2+}$$ ions using Raman spectroscopy. First, irradiated C$$_{60}$$ thin films show resistance to photopolymerization. The extent of the resistance increases with increasing fluence of ion irradiation. The effect is qualitatively explained by the fact that the photochemical reaction is suppressed by destructive collisions of the C$$_{60}$$ molecules with the energetic ions followed by lattice damage. Secondly, no intermediate fragments of a C$$_{60}$$ molecule generated by ion impact are observed, ${it i.e.}$, each C$$_{60}$$ molecule completely decomposes into its constituent atoms in a single catastrophic event upon energetic-ion impact. An effective cross section for decomposition of the C$$_{60}$$ molecule is derived from dependence of the peak-intensity ratio of ${it A}$$$_{g}$$(2) as $$sigma$$ = 5.1$$times$$10$$^{-15}$$ cm$$^{2}$$.

Journal Articles

AFM observation of nanosized SiC dots prepared by ion beam deposition

Xu, Y.; Narumi, Kazumasa; Miyashita, Kiyoshi*; Naramoto, Hiroshi

Surface and Interface Analysis, 35(1), p.99 - 103, 2003/01

https://doi.org/10.1002/sia.1502
 Times Cited Count：9 Percentile：25.19(Chemistry, Physical)

no abstracts in English

Journal Articles

Modification of C$$_{60}$$ thin films by ion 7-MeV $$^{12}$$C$$^{2+}$$ ion irradiation

Narumi, Kazumasa; Xu, Y.; Miyashita, Kiyoshi*; Naramoto, Hiroshi

JAERI-Review 2002-035, TIARA Annual Report 2001, p.176 - 178, 2002/11

no abstracts in English

Journal Articles

Coarsening dynamics and surface instability during ion-beam-assisted growth of amorphous diamondlike carbon

Zhu, X. D.; Naramoto, Hiroshi; Xu, Y.; Narumi, Kazumasa; Miyashita, Kiyoshi*

Physical Review B, 66(16), p.165426_1 - 165426_5, 2002/10

https://doi.org/10.1103/PhysRevB.66.165426
 Times Cited Count：14 Percentile：57.58(Materials Science, Multidisciplinary)

no abstracts in English

Journal Articles

Tuning surface morphologies of ion-assisted diamondlike carbon film on the nanometer scale

Zhu, X. D.; Naramoto, Hiroshi; Xu, Y.; Narumi, Kazumasa; Miyashita, Kiyoshi*

Journal of Chemical Physics, 116(23), p.10458 - 10461, 2002/06

https://doi.org/10.1063/1.1473827
 Times Cited Count：5 Percentile：14.82(Chemistry, Physical)

no abstracts in English

Journal Articles

Modification of carbon related films with ion beams

Naramoto, Hiroshi; Xu, Y.; Narumi, Kazumasa; Zhu, X.; Vacik, J.; Yamamoto, Shunya; Miyashita, Kiyoshi*

JAERI-Review 2001-039, TIARA Annual Report 2000, p.183 - 185, 2001/11

https://doi.org/10.11484/jaeri-review-2001-039

no abstracts in English

Journal Articles

Pattern formation induced by co-deposition of Ni and C$$_{60}$$ on MgO(100)

Vacik, J.; Naramoto, Hiroshi; Narumi, Kazumasa; Yamamoto, Shunya; Miyashita, Kiyoshi*

Journal of Chemical Physics, 114(20), p.9115 - 9119, 2001/05

https://doi.org/10.1063/1.1368656
 Times Cited Count：20 Percentile：53.87(Chemistry, Physical)

no abstracts in English

Journal Articles

Effect of mass-selected ion species on structure and properties of diamond-like carbon films

Tang, Z.; Zhang, Z.; Narumi, Kazumasa; Xu, Y.; Naramoto, Hiroshi; Nagai, Shiro; Miyashita, Kiyoshi*

Journal of Applied Physics, 89(3), p.1959 - 1964, 2001/02

https://doi.org/10.1063/1.1333739
 Times Cited Count：30 Percentile：72.75(Physics, Applied)

no abstracts in English

Journal Articles

Modification of carbon related films with energy beams

Naramoto, Hiroshi; Xu, Y.; Narumi, Kazumasa; Vacik, J.; Zhu, X.; Yamamoto, Shunya; Miyashita, Kiyoshi*

Materials Research Society Symposium Proceedings, Vol.647, p.O5.18.1 - O5.18.16, 2001/00

no abstracts in English

Journal Articles

Mesoscopic patterning induced by co-deposition of C$$_{60}$$ and Ni on the MgO(100) single crystal

Vacik, J.; Naramoto, Hiroshi; Narumi, Kazumasa; Yamamoto, Shunya; Miyashita, Kiyoshi*

Materials Research Society Symposium Proceedings, Vol.648, p.P3.50.1 - P3.50.6, 2001/00

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11 (Records 1-11 displayed on this page)
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