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113 results on '"Kamigaki, K."'

7. Atomic layer growth of oxide thin films with perovskite-type structure by reactive evaporation

Author

Iijima, K., Terashima, T., Bando, Y., Kamigaki, K., and Terauchi, H.

Subjects
Thin films -- Research, Crystals -- Growth, Physics
Abstract

The atomic layer growth of oxide thin films with perovskite-type structure by reactive evaporation was investigated using reflection high-energy electron diffraction. The results showed that the alternate supply of Ba or Sr and Ti on the growing surface allowed atomic layer growth to be achieved. In coevaporation, epitaxial growth was characterized by a unit-cell-by-unit-cell mode, with the surface of each unit cell terminated by a TiO2 layer.

Published
1992

8. X-ray diffraction analysis of buffer layer effects on lattice distortions of strained layer superlattices.

Author

Kamigaki, K., Sakashita, H., Kato, H., Nakayama, M., Sano, N., and Terauchi, H.

Subjects
*INDIUM compounds, *SUPERLATTICES, *ALLOYS
Abstract

Investigates the effects of indium[sub0.2]aluminum[sub0.8]arsenic buffer layers on the lattice distortions of strained layer superlattices (SLS) by x-ray diffraction. Methods to superimpose the SLS on the large lattice mismatched substrate without defect structures near the interfaces; Determination of alloy compositions and layer thicknesses; Summary of observed and calculated intensities around the reflection and four fitting parameters.

Published
1987
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9. Anomalous misfit strain relaxation in ultrathin YBa2Cu3O7-δ epitaxial films.

Author

Kamigaki, K., Terauchi, H., Terashima, T., Bando, Y., Iijima, K., Yamamoto, K., Hirata, K., Hayashi, K., Nakagawa, I., and Tomii, Y.

Subjects
*THIN films, *YTTRIUM, *EPITAXY
Abstract

Presents information on a study which examined the establishment of ultrathin yttrium barrium copper oxide epitaxial films in situ on strontium titanium oxide and magnesium oxide substrates by means of ozone-incorporating activated reactive evaporation. Methodology of the study; Results and discussion; Conclusions.

Published
1991
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10. Growth and characterization of InAs/In1-xAlxAs strained-layer superlattices on GaAs.

Author

Kato, H., Iguchi, N., Kamigaki, K., Chika, S., Nakayama, M., Sano, N., and Terauchi, H.

Subjects
SUPERLATTICES, ARSENIDES, GALLIUM arsenide, X-ray diffraction, STRAINS & stresses (Mechanics)
Abstract

Reports on the growth and characterization of indium arsenide/In[sub1-x]Al[subx]As strained-layer superlattices on gallium arsenide. Growth of the strained-layer superlattices; X-ray diffraction measurements of the superlattices; Measurements conducted to evaluate the strain-induced effects on band structures.

Published
1987
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11. A Reintegration Program for Elderly Prisoners Reduces Reoffending

Author

Kenji Yokotani and Kamigaki K

Subjects
Gerontology, media_common.quotation_subject, Context (language use), Residence, Psychology, Welfare, Sentence, media_common
Abstract

Harsh sentences have resulted in many prisoners being elderly at the time of their release. However, the longer individuals have been incarcerated and the older they are, the more difficult it may be for them to re-enter free society. We developed a reintegration program to promote their successful adjustment to society and to prevent their reoffending, and evaluated its effectiveness. Participants were 25 older prisoners in Japan; all were homeless and more than 65 years old. Ten participants voluntarily participated in the reintegration programs, while the other 15 participants rejected participation in the programs. The programs provided a temporary residence, money, and job support in a community where they desired to live. Participants involved with the reintegration programs had not reoffended at 252 days, while 37.5% of those not involved in the programs reoffended. The two groups did not significantly differ in age, health status, educational level, and total length of sentence. Reintegration of older prisoners into society is more effective when done in the context of a prevention program and welfare support.

Published
2014
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18. Epitaxial BaTiO3crystals

Author

Terauchi, H., primary, Yoneda, Y., additional, Watanabe, Y., additional, Kasatani, H., additional, Sakaue, K., additional, Kamigaki, K., additional, Iijima, K., additional, Yano, Y., additional, Terashima, T., additional, and Bando, Y., additional

Published
1994
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30. Effects of hydrocortisone on the adrenaline-adenylate cyclase system of the skin.

Author

Iizuka, H., Kamigaki, K., Nemoto, O., Aoyag, T., and Miura, Y.

Subjects
HYDROCORTISONE, DERMATOLOGY, ADRENALINE, SKIN physiology, CYTOLOGY, CELL physiology, PHYSIOLOGY, BIOCHEMISTRY
Abstract

Using pig skin slices, we investigated the effects of hydrocortisone on the adenylate cyclase system of the skin. In short-term experiments, hydrocortisone, when added singly or in combination with other stimulators of adenylate cyclase in the skin (adrenaline or histamine), had no effect on cyclic AMP accumulation. However, when skin slices were incubated with hydrocortisone for more than 6 h, the response to adrenaline differed, with a greater accumulation of cyclic AMP in the hydrocortisone-treated skin. This effect was seen at a concentration of more than 1 μM hydrocortisone and was most marked 48 h later, while responses to adrenaline in control skin gradually decreased and remained low. Histamine, which is another stimulator of adenylate cyclase of the skin, did not cause a greater cyclic AMP accumulation in response to this hydrocortisone treatment. There was no significant difference in either low Km or high Km cyclic AMP phosphodiesterase activities as a result of this hydrocortisone treatment. Hydrocortisone seems to act by protecting the adrenaline-adenylate cyclase system of the skin. [ABSTRACT FROM AUTHOR]

Published
1980
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32. Epitaxial BaTiO3 crystals

Author

Terauchi, H., Yoneda, Y., Watanabe, Y., Kasatani, H., Sakaue, K., Kamigaki, K., Iijima, K., Yano, Y., Terashima, T., and Bando, Y.

Abstract

Epitaxial crystals of BaTiO3 have been grown by activated reactive evaporation. The ultra-thin crystal less than 100Å thickness shows an elongation along the c-direction. The ferroelectric phase transition of the thin films is discussed in terms of the epitaxial effect and the surface layer.

Published
1994
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33. X-ray study of misfit strain relaxation in lattice-mismatched heterojunctions.

Author

Kamigaki, K., Sakashita, H., Kato, H., Nakayama, M., Sano, N., and Terauchi, H.

Subjects
*GALLIUM compounds, *MOLECULAR beam epitaxy
Abstract

High-resolution x-ray diffraction measurements have been carried out in AlxGa1-xAs and InxGa1-xAs grown by the molecular beam epitaxy method on (001) GaAs substrates. The thin epitaxial layers in these lattice-mismatched semiconductor single heterojunctions are uniformly distorted and there is an elastic limit for large x. The epitaxial layer is affected by a thick substrate even over the elastic limit, i.e., the epitaxial layer still shows a strained state beyond the elastic limit. The relationship between the misfit strain and the lattice distortion is discussed. [ABSTRACT FROM AUTHOR]

Published
1986
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