論文 - 宇佐美 徳隆
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Interfacial roughness of Si1-xGex/Si multilayer structures on Si(111) probed by x-ray scattering
P. M. Reimer, J. H. Li, Y. Yamaguchi, O. Sakata, H. Hashizume, N. Usami and Y. Shiraki
Journal of Physics-Condensed Matter 9 巻 ( 22 ) 頁： 4521-4533 1997年6月
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Precise control of island formation using overgrowth technique on cleaved edges of strained multiple quantum wells
J. Arai, N. Usami, K. Ota, Y. Shiraki, A. Ohga and T. Hattori
Applied Physics Letters 70 巻 ( 22 ) 頁： 2981-2983 1997年6月
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Photoluminescence study of the optical properties of SiGe quantum wells on separation by implanted oxygen substrates
D. K. Nayak, N. Usami, S. Fukatsu and Y. Shiraki
Journal of Applied Physics 81 巻 ( 8 ) 頁： 3484-3489 1997年4月
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Anomalous luminescence peak shift of SiGe/Si quantum well induced by self-assembled Ge islands
E. S. Kim, N. Usami and Y. Shiraki
Applied Physics Letters 70 巻 ( 3 ) 頁： 295-297 1997年1月
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Oxidation of strained Si in a microwave electron cyclotron resonance plasma
L. K. Bera, M. Mukhopadhyay, S. K. Ray, D. K. Nayak, N. Usami, Y. Shiraki and C. K. Maiti
Applied Physics Letters 70 巻 ( 2 ) 頁： 217-219 1997年1月
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Electrical properties of oxides grown on strained Si using microwave N2O plasma
L. K. Bera, S. K. Ray, D. K. Nayak, N. Usami, Y. Shiraki and C. K. Maiti
Applied Physics Letters 70 巻 ( 1 ) 頁： 66-68 1997年1月
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Anomalous photoluminescence of pure-Ge/Si type-II coupled quantum wells (II-CQWs)
H. Sunamura, N. Usami, Y. Shiraki and S. Fukatsu
THIN SOLID FILMS 294 巻 ( 1-2 ) 頁： 336-339 1997年
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Luminescence study on Ge islands as stressors on Si1-xGex/Si quantum well
E. S. Kim, N. Usami, H. Sunamura, S. Fukatsu and Y. Shiraki
JOURNAL OF CRYSTAL GROWTH 175 巻 頁： 519-523 1997年
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Time-resolved photoluminescence study on AlxGa1-xAs spontaneous vertical quantum well structures
N. Usami, W. G. Pan, H. Yaguchi, R. Ito, K. Onabe, H. Akiyama and Y. Shiraki
Applied Physics Letters 68 巻 ( 23 ) 頁： 3221-3223 1996年6月
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Ultrashort lifetime photocarriers in Ge thin films
N. Sekine, K. Hirakawa, F. Sogawa, Y. Arakawa, N. Usami, Y. Shiraki and T. Katoda
Applied Physics Letters 68 巻 ( 24 ) 頁： 3419-3421 1996年6月
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Role of heterointerface on enhancement of no-phonon luminescence in Si-based neighboring confinement structure
N. Usami, Y. Shiraki and S. Fukatsu
Applied Physics Letters 68 巻 ( 17 ) 頁： 2340-2342 1996年4月
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Observation of lateral confinement effect in Ge quantum wires self-aligned at step edges on Si(100)
H. Sunamura, N. Usami, Y. Shiraki and S. Fukatsu
Applied Physics Letters 68 巻 ( 13 ) 頁： 1847-1849 1996年3月
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Exciton diffusion dynamics in SiGe/Si quantum wells on a V-groove patterned Si substrate
N. Usami, H. Akiyama, Y. Shiraki and S. Fukatsu
SOLID-STATE ELECTRONICS 40 巻 頁： 733-736 1996年
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Formation and optical properties of SiGe/Si quantum structures
Y. Shiraki, H. Sunamura, N. Usami and S. Fukatsu
APPLIED SURFACE SCIENCE 102 巻 頁： 263-271 1996年
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Rectangular AlGaAs/AlAs quantum wires using spontaneous vertical quantum wells
W. G. Pan, H. Yaguchi, K. Onabe, R. Ito, N. Usami and Y. Shiraki
JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS 35 巻 ( 2B ) 頁： 1214-1216 1996年
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Polarization properties of GaAsP/AlGaAs tensilely strained quantum wire structures grown on V-grooved GaAs substrates
W. Pan, H. Yaguchi, K. Onabe, R. Ito, N. Usami and Y. Shiraki
INSTITUTE OF PHYSICS CONFERENCE SERIES 145 巻 頁： 925-930 1996年
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Improved luminescence quality with an asymmetric confinement potential in Si-based type-II quantum wells grown on a graded SiGe relaxed buffer
S. Fukatsu, N. Usami and Y. Shiraki
J. Vac. Sci. Technol 14 巻 頁： 2387-2390 1996年
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CHARACTERIZATION OF SIGE QUANTUM-WIRE STRUCTURES BY CATHODOLUMINESCENCE IMAGING AND SPECTROSCOPY
V. Higgs, E. C. Lightowlers, N. Usami, T. Mine, S. Fukatsu and Y. Shiraki
Applied Physics Letters 67 巻 ( 12 ) 頁： 1709-1711 1995年9月
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DYNAMICS OF EXCITON DIFFUSION IN SIGE QUANTUM-WELLS ON A V-GROOVE PATTERNED SI SUBSTRATE
N. Usami, H. Akiyama, Y. Shiraki and S. Fukatsu
Physical Review B 52 巻 ( 7 ) 頁： 5132-5135 1995年8月
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ENHANCEMENT OF RADIATIVE RECOMBINATION IN SI-BASED QUANTUM-WELLS WITH NEIGHBORING CONFINEMENT STRUCTURE
N. Usami, F. Issiki, D. K. Nayak, Y. Shiraki and S. Fukatsu
Applied Physics Letters 67 巻 頁： 524-526 1995年7月