Zobrazeno 1 - 10
of 27
pro vyhledávání: '"Takeshi J. Inagaki"'
Publikováno v:
Japanese Journal of Applied Physics. 60:064004
To explain the deviation in the valence subband energy levels of the Si(111) inversion layer obtained by experiments and calculations, the band edge profile that has the same subband levels as the experimental results is searched through numerical ca
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::235f7853c3ff972d98d64f3267f41233
https://doi.org/10.35848/1347-4065/ac022a
https://doi.org/10.35848/1347-4065/ac022a
Publikováno v:
Physical Review B. 95
We present the results of exact numerical calculations of the dielectric properties of tetrathiafulvalene-$p$-chloranil (TTF-CA) using the extended Hubbard model. The electronic polarization ${\overline{P}}_{\mathrm{el}}$ of the ionic ground state is
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::257065ee2b0c78f189168632a0b1f644
https://doi.org/10.1103/physrevb.95.094116
https://doi.org/10.1103/physrevb.95.094116
Autor:
Yen Thi Hai Le, Takeshi J. Inagaki
Publikováno v:
physica status solidi (b). 252:589-599
We theoretically investigate the terahertz (THz) absorption spectra in optically excited direct bandgap bulk semiconductors for various electron–hole (e–h) pair densities with analyzing Coulomb interacting two-band e–h systems. The exciton Mott
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::42a436f6ce6803dd98949601588c9a03
https://doi.org/10.1002/pssb.201451191
https://doi.org/10.1002/pssb.201451191
Publikováno v:
Journal of the Physical Society of Japan. 74:1745-1749
We analyze the effects of effective mass anisotropy and the effective mass difference between electrons and holes on the electron–hole ( e – h ) BCS state in highly excited semiconductors at variou...
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8d88abd756239771c9425d6e3cccf0c7
https://doi.org/10.1143/jpsj.74.1745
https://doi.org/10.1143/jpsj.74.1745
Publikováno v:
physica status solidi (c). :495-498
We have studied photoluminescence (PL) properties of GaN thin films at low temperatures for various excitation intensities. Under weak excitation intensities, the free exciton line as well as the bound exciton line appear in the PL spectrum. With an
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0ad4b93f0baf66685ecbe6163cc747f7
https://doi.org/10.1002/pssc.200390097
https://doi.org/10.1002/pssc.200390097
Autor:
Takeshi J. Inagaki, Yoshihiko Kanemitsu, Takeshi Ota, T. Kushida, Hisao Nakashima, M. Ando, Kenzo Maehashi, Yasuhiro Murase
Publikováno v:
Journal of Luminescence. :403-406
Many-body effects were studied in highly photoexcited CdSe quantum dots (QDs). The size of the QDs was larger than the exciton Bohr radius in bulk CdSe crystals, so that the excitons are confined in the CdSe QDs. With increasing excitation density, t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f7ed8ea7d98fe0fe2497c214d58f874f
https://doi.org/10.1016/s0022-2313(01)00313-1
https://doi.org/10.1016/s0022-2313(01)00313-1
Autor:
M. Aihara, Takeshi J. Inagaki
Publikováno v:
Journal of Luminescence. :533-536
We analyze infrared absorption and reflection spectra of high-density electron–hole (e–h) systems. The BCS-like energy gap (BEG) is found in the calculated spectra. We incorporate the large quantum fluctuation with the quasi-static Eliashberg equ
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4286834cbed877d2b0f9416f8c5d6bdb
https://doi.org/10.1016/s0022-2313(01)00379-9
https://doi.org/10.1016/s0022-2313(01)00379-9
Publikováno v:
Physical Review B. 62:10852-10860
We present a unified theory for pump-probe spectra in highly excited semiconductors, which is applicable throughout the whole density regime including the high-density electron-hole BCS state and the low-density excitonic Bose-Einstein condensate (BE
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ebf634565f27373ead839f3b89a0eea6
https://doi.org/10.1103/physrevb.62.10852
https://doi.org/10.1103/physrevb.62.10852
Autor:
Takeshi J. Inagaki, Masaki Aihara
Publikováno v:
Journal of Luminescence. :79-82
The pump-probe spectra in highly excited semiconductors are calculated to clarify the quantum fluctuation effect in a dense electron-hole system. In practical electron-hole densities, center-of-mass motion of excitons as well as state-filling effect
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c25d854795d3e003de33c089e46f3bb4
https://doi.org/10.1016/s0022-2313(97)00179-8
https://doi.org/10.1016/s0022-2313(97)00179-8
Autor:
Hiroki Gomi, Masaki Aihara, Masahiro Ikenaga, Daiki Segawa, Yasuhiro Hiragi, Takeshi J. Inagaki, Akira Takahashi
Publikováno v:
Physical Review B. 87
We theoretically investigate the dielectric properties of dimer Mott insulators. We adopt the two-dimensional quarter-filled extended Hubbard model for $\ensuremath{\kappa}$-(BEDT-TTF)${}_{2}$$X$ that includes the coupling with the dimer lattice mode
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c605325f216987affba542fc7cc0743d
https://doi.org/10.1103/physrevb.87.195126
https://doi.org/10.1103/physrevb.87.195126