Zobrazeno 1 - 10
of 740
pro vyhledávání: '"IWASAKI, Takuya"'
Autor:
Gu, Hao, Tsukamoto, Moeta, Nakamura, Yuki, Nakaharai, Shu, Iwasaki, Takuya, Watanabe, Kenji, Taniguchi, Takashi, Ogawa, Shinichi, Morita, Yukinori, Sasaki, Kento, Kobayashi, Kensuke
Publikováno v:
Physical Review Applied 22 (5), 054026 (2024)
The nanosized boron vacancy ($V_\mathrm{B}^-$) defect spot in hexagonal boron nitride ($h$-BN) is promising for a local magnetic field quantum sensor. One of its advantages is that a helium-ion microscope can make a spot at any location in an $h$-BN
Externí odkaz:
http://arxiv.org/abs/2411.10717
Autor:
Iwasaki, Takuya, Morita, Yoshifumi
We report on the fabrication and characterization of dual-gated hexagonal boron nitride (hBN)/bilayer-graphene (BLG) superlattices. Due to the moire effect, the hBN/BLG superlattice harbors an energy gap at the charge neutral point (CNP) and the sate
Externí odkaz:
http://arxiv.org/abs/2410.05649
Publikováno v:
Phys. Rev. B109, 075409 (2024)
In gapped Dirac materials, the topological current associated with each valley can flow in opposite directions creating long-range charge-neutral valley currents. We report valley currents in hBN/bilayer-graphene heterostructures with an energy gap,
Externí odkaz:
http://arxiv.org/abs/2410.05636
Autor:
Higashihara, Tomo, Asama, Ryotaro, Nakamura, Ryoya, Watanabe, Mori, Tomoda, Nanami, Hasiweder, Thomas Johannes, Fujisawa, Yuita, Okada, Yoshinori, Iwasaki, Takuya, Watanabe, Kenji, Taniguchi, Takashi, Jiang, Nan, Niimi, Yasuhiro
Publikováno v:
Phys. Rev. B 109, 134404 (2024)
Rare-earth tritellurides are van-der-Waals antiferromagnets which have been attracting attention as materials not only with high mobility, but also with various states such as superconductivity under high pressure, incommensurate charge-density-wave
Externí odkaz:
http://arxiv.org/abs/2403.09250
Autor:
Sasaki, Kento, Nakamura, Yuki, Gu, Hao, Tsukamoto, Moeta, Nakaharai, Shu, Iwasaki, Takuya, Watanabe, Kenji, Taniguchi, Takashi, Ogawa, Shinichi, Morita, Yukinori, Kobayashi, Kensuke
Publikováno v:
Appl. Phys. Lett. 122, 244003 (2023)
Placing a sensor close to the target at the nano-level is a central challenge in quantum sensing. We demonstrate high-spatial-resolution magnetic field imaging with a boron vacancy (V$_\text{B}^-$) defects array in hexagonal boron nitride with a few
Externí odkaz:
http://arxiv.org/abs/2301.12645
Autor:
Karanikolas, Vasilios, Iwasaki, Takuya, Henzie, Joel, Ikeda, Naoki, Yamauchi, Yusuke, Wakayama, Yutaka, Kuroda, Takashi, Watanabe, Kenji, Taniguchi, Takashi
High-quality emission centers in two-dimensional materials are promising components for future photonic and optoelectronic applications. Carbon-enriched hexagonal boron nitride (hBN:C) layers host atom-like color-center (CC) defects with strong and r
Externí odkaz:
http://arxiv.org/abs/2211.09339
Publikováno v:
Phys. Rev. B 106, 165134 (2022)
We report on transport properties in dual-gated hexagonal boron nitride (hBN)/bilayer-graphene (BLG) superlattices. Here, BLG is nontwisted, i.e., plain. This paper focuses on the charge neutrality point (CNP) for a plain BLG. Under a perpendicular m
Externí odkaz:
http://arxiv.org/abs/2206.05401
Autor:
Iwasaki, Takuya, Kimata, Motoi, Morita, Yoshifumi, Nakaharai, Shu, Wakayama, Yutaka, Watanabe, Eiichiro, Tsuya, Daiju, Watanabe, Kenji, Taniguchi, Takashi, Moriyama, Satoshi
Employing graphene as a template, we fabricate moir\'e superlattices by stacking bilayer or folded bilayer-bilayer graphene (BLG or fBBLG) and hexagonal boron nitride (hBN), i.e., hBN/BLG/hBN or hBN/fBBLG/hBN stacks, with a small twist angle between
Externí odkaz:
http://arxiv.org/abs/2110.00510
Autor:
Iwasaki, Takuya, Harazono, Yosuke, Fukawa, Yuki, Kaida, Atsushi, Kayamori, Kou, Sasaki, Yoshiyuki, Harada, Hiroyuki, Yoda, Tetsuya
Publikováno v:
In British Journal of Oral & Maxillofacial Surgery June 2024 62(5):464-470
