Zobrazeno 1 - 10
of 321
pro vyhledávání: '"Komori, Fumio"'
Autor:
Sato, Yusuke, Fukaya, Yuki, Nakano, Akito, Hoshi, Takeo, Lee, Chi-Cheng, Yoshimi, Kazuyoshi, Ozaki, Taisuke, Nakashima, Takeru, Ando, Yasunobu, Aoyama, Hiroaki, Abukawa, Tadashi, Tsujikawa, Yuki, Horio, Masafumi, Niibe, Masahito, Komori, Fumio, Matsuda, Iwao
The structure of an Al(111)3x3-Si surface was examined by combining data from positron diffraction and core-level photoemission spectroscopy. Analysis of the diffraction rocking curves indicated that the overlayer had a flat honeycomb lattice structu
Externí odkaz:
http://arxiv.org/abs/2409.19666
Autor:
Tanaka, Hiroaki, Okazaki, Shota, Fukushima, Yuto, Kawaguchi, Kaishu, Harasawa, Ayumi, Iimori, Takushi, Komori, Fumio, Arita, Masashi, Mori, Ryo, Kuroda, Kenta, Sasagawa, Takao, Kondo, Takeshi
Publikováno v:
Phys. Rev. B 109, L241114 (2024)
We develop a simulation procedure for angle-resolved photoemission spectroscopy (ARPES), where a photoelectron wave function is set to be an outgoing plane wave in a vacuum associated with the emitted photoelectron wave packet. ARPES measurements on
Externí odkaz:
http://arxiv.org/abs/2311.05953
Autor:
Tanaka, Hiroaki, Okazaki, Shota, Kobayashi, Masaru, Fukushima, Yuto, Arai, Yosuke, Iimori, Takushi, Lippmaa, Mikk, Yamagami, Kohei, Kotani, Yoshinori, Komori, Fumio, Kuroda, Kenta, Sasagawa, Takao, Kondo, Takeshi
Publikováno v:
Phys. Rev. Lett. 132, 136402 (2024)
We investigate the electronic structure of $2H$-$\mathrm{Nb}\mathrm{S}_2$ and $h$-$\mathrm{BN}$ by angle-resolved photoemission spectroscopy (ARPES) and photoemission intensity calculations. Although in bulk form, these materials are expected to exhi
Externí odkaz:
http://arxiv.org/abs/2308.00999
Autor:
Fukushima, Yuto, Kawaguchi, Kaishu, Kuroda, Kenta, Ochi, Masayuki, Tanaka, Hiroaki, Harasawa, Ayumi, Iimori, Takushi, Zhao, Zhigang, Tani, Shuntaro, Yaji, Koichiro, Shin, Shik, Komori, Fumio, Kobayashi, Yohei, Kondo, Takeshi
We use a pump-probe, spin-, and angle-resolved photoemission spectroscopy (ARPES) with a 10.7 eV laser accessible up to the Brillouin zone edge, and reveal for the first time the entire band structure, including the unoccupied side, for the elemental
Externí odkaz:
http://arxiv.org/abs/2303.17816
Autor:
Nakamura, Takuto, Ohtsubo, Yoshiyuki, Harasawa, Ayumi, Yaji, Koichiro, Shin, Shik, Komori, Fumio, Kimura, Shin-ichi
Publikováno v:
Phys. Rev. B 105, 235141 (2022)
Spin-orbit interaction (SOI) in low-dimensional systems, namely Rashba systems and the edge states of topological materials, is extensively studied in this decade as a promising source to realize various fascinating spintronic phenomena, such as the
Externí odkaz:
http://arxiv.org/abs/2112.13496
Autor:
Toyama, Haruko, Akiyama, Ryota, Ichinokura, Satoru, Hashizume, Mizuki, Iimori, Takushi, Endo, Yukihiro, Hobara, Rei, Matsui, Tomohiro, Horii, Kentaro, Sato, Shunsuke, Hirahara, Toru, Komori, Fumio, Hasegawa, Shuji
Ca-intercalation has opened a way for superconductivity in graphene on SiC. However, the atomic and electronic structures being critical for superconductivity are still under discussion. We find the essential role of the interface between monolayer g
Externí odkaz:
http://arxiv.org/abs/2111.13012
Publikováno v:
Phys. Rev. B 104, 165419 (2021)
We report the growth process, structure, and electronic states of 1 unit layer (u.l.) of a Ce-Pt intermetallic compound on Pt(111) using scanning tunneling microscopy/spectroscopy (STM/STS) and low-energy electron diffraction. An ordered $(2 \times 2
Externí odkaz:
http://arxiv.org/abs/2110.13469
Thermal decomposition of vicinal 6H-SiC(0001) surfaces with off-angles toward the $[1\bar{1}00]$ direction results in the appearance of pairs of (0001) macroterraces and $(1\bar{1}0n)$ macrofacets covered with graphene, as follows. A carpet-like carb
Externí odkaz:
http://arxiv.org/abs/2110.13321
Autor:
Kuroda, Kenta, Yaji, Koichiro, Noguchi, Ryo, Harasawa, Ayumi, Shin, Shik, Kondo, Takeshi, Komori, Fumio
Publikováno v:
Phys. Rev. B 105, L121106 (2022)
Similar to light polarization that is selected by a superposition of optical basis, electron spin direction can be controlled through a superposition of spin basis. We investigate such a spin interference occurring in photoemission of the spin-orbit
Externí odkaz:
http://arxiv.org/abs/2105.02749
Autor:
Yoshizawa, Shunsuke, Kobayashi, Takahiro, Nakata, Yoshitaka, Yaji, Koichiro, Yokota, Kenta, Komori, Fumio, Shin, Shik, Sakamoto, Kazuyuki, Uchihashi, Takashi
Publikováno v:
Nat Commun 12, 1462 (2021)
Spin-momentum locking is essential to the spin-split Fermi surfaces of inversion-symmetry broken materials, which are caused by either Rashba-type or Zeeman-type spin-orbit coupling (SOC). While the effect of Zeeman-type SOC on superconductivity has
Externí odkaz:
http://arxiv.org/abs/2103.07143