Zobrazeno 1 - 10
of 142
pro vyhledávání: '"Akiyama, Ryota"'
We have found that surface superstructures made of "monolayer alloys" of Tl and Pb on Si(111), having giant Rashba effect, produce non-reciprocal spin-polarized photocurrent via circular photogalvanic effect (CPGE) by obliquely shining circularly pol
Externí odkaz:
http://arxiv.org/abs/2308.02485
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
Various types of magnetism can appear in emerging quantum materials such as van der Waals layered ones. Here, we report the successful doping of manganese atoms into a post-transition metal dichalcogenide semiconductor: SnSe$_2$. We synthesized a sin
Externí odkaz:
http://arxiv.org/abs/2106.12334
Autor:
Takashiro, Takuya, Akiyama, Ryota, Kibirev, Ivan A., Matetskiy, Andrey V., Nakanishi, Ryosuke, Sato, Shunsuke, Fukasawa, Takuro, Sasaki, Taisuke, Toyama, Haruko, Hiwatari, Kota L., Zotov, Andrey V., Saranin, Alexander A., Hirahara, Toru, Hasegawa, Shuji
A magnetic skyrmion induced on a ferromagnetic topological insulator (TI) is a real-space manifestation of the chiral spin texture in the momentum space, and can be a carrier for information processing by manipulating it in tailored structures. Here,
Externí odkaz:
http://arxiv.org/abs/2105.13796
Autor:
Akiyama, Ryota, Ishikawa, Ryo, Akutsu, Kazuhiro, Nakanishi, Ryosuke, Tomohiro, Yuta, Watanabe, Kazumi, Iida, Kazuki, Mitome, Masanori, Hasegawa, Shuji, Kuroda, Shinji
Introducing magnetic order into a topological insulator (TI) system has been attracting much attention with an expectation of realizing exotic phenomena such as quantum anomalous Hall effect (QAHE) or axion insulator states. The magnetic proximity ef
Externí odkaz:
http://arxiv.org/abs/1910.10540
Akademický článek
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Publikováno v:
Phys. Rev. Research 2, 023055 (2020)
Using circularly polarized light is an alternative to electronic ways for spin injection into materials. Spins are injected at a point of the light illumination, and then diffuse and spread radially due to the in-plane gradient of the spin density. T
Externí odkaz:
http://arxiv.org/abs/1809.08063
Autor:
Hatada, Miki1 (AUTHOR), Akiyama, Ryota1 (AUTHOR), Yamagishi, Moeko1 (AUTHOR), Ishizaki, Kimitsune2 (AUTHOR), Mizutani, Masaharu1 (AUTHOR) mizutani@gold.kobe-u.ac.jp
Publikováno v:
Plant & Cell Physiology. Jul2023, Vol. 64 Issue 7, p826-838. 13p.
Autor:
Hirahara, Toru, Eremeev, Sergey V., Shirasawa, Tetsuroh, Okuyama, Yuma, Kubo, Takayuki, Nakanishi, Ryosuke, Akiyama, Ryota, Takayama, Akari, Hajiri, Tetsuya, Ideta, Shin-ichiro, Matsunami, Masaharu, Sumida, Kazuki, Miyamoto, Koji, Takagi, Yasumasa, Tanaka, Kiyohisa, Okuda, Taichi, Yokoyama, Toshihiko, Kimura, Shin-ichi, Hasegawa, Shuji, Chulkov, Evgueni V.
Publikováno v:
Nano Letters 17, 3493 (2017)
Inducing magnetism into topological insulators is intriguing for utilizing exotic phenomena such as the quantum anomalous Hall effect (QAHE) for technological applications. While most studies have focused on doping magnetic impurities to open a gap a
Externí odkaz:
http://arxiv.org/abs/1709.02004
Autor:
Akiyama, Ryota, Takano, Yuma, Endo, Yukihiro, Ichinokura, Satoru, Nakanishi, Ryosuke, Nomura, Kentaro, Hasegawa, Shuji
We have found that the Berry phase of bilayer graphene becomes from 2$\pi$ estimated by Shubnikov-de Haas oscillations when the A-B stacked pristine bilayer graphene experiences the Li-intercalation and sequential Li-desorption process in ultrahigh v
Externí odkaz:
http://arxiv.org/abs/1701.03936