Zobrazeno 1 - 10
of 308
pro vyhledávání: '"Tsukazaki, Atsushi"'
Autor:
Belopolski, Ilya, Watanabe, Ryota, Sato, Yuki, Yoshimi, Ryutaro, Kawamura, Minoru, Nagahama, Soma, Zhao, Yilin, Shao, Sen, Jin, Yuanjun, Kato, Yoshihiro, Okamura, Yoshihiro, Zhang, Xiao-Xiao, Fujishiro, Yukako, Takahashi, Youtarou, Hirschberger, Max, Tsukazaki, Atsushi, Takahashi, Kei S., Chiu, Ching-Kai, Chang, Guoqing, Kawasaki, Masashi, Nagaosa, Naoto, Tokura, Yoshinori
Quantum materials governed by emergent topological fermions have become a cornerstone of physics. Dirac fermions in graphene form the basis for moir\'e quantum matter, and Dirac fermions in magnetic topological insulators enabled the discovery of the
Externí odkaz:
http://arxiv.org/abs/2411.04179
Autor:
Noro, Kosuke, Kozuka, Yusuke, Matsumura, Kazuma, Kumasaka, Takeshi, Fujiwara, Yoshihiro, Tsukazaki, Atsushi, Kawasaki, Masashi, Otsuka, Tomohiro
Publikováno v:
Nature Communications 15, 9556 (2024)
Quantum devices such as spin qubits have been extensively investigated in electrostatically confined quantum dots using high-quality semiconductor heterostructures like GaAs and Si. Here, we present the first demonstration of electrostatically formin
Externí odkaz:
http://arxiv.org/abs/2311.12508
Autor:
Sato, Yuki, Nagahama, Soma, Belopolski, Ilya, Yoshimi, Ryutaro, Kawamura, Minoru, Tsukazaki, Atsushi, Kanazawa, Naoya, Takahashi, Kei S., Kawasaki, Masashi, Tokura, Yoshinori
Engineering heterostructures with various types of quantum materials can provide an intriguing playground for studying exotic physics induced by the proximity effect. Here, we report the successful synthesis of iron-based superconductor FeSe$_{x}$Te$
Externí odkaz:
http://arxiv.org/abs/2310.18147
Autor:
Watanabe, Ryota, Yoshimi, Ryutaro, Takahashi, Kei S., Tsukazaki, Atsushi, Kawasaki, Masashi, Kawamura, Minoru, Tokura, Yoshinori
Surface states of a topological insulator demonstrate interesting quantum phenomena, such as the quantum anomalous Hall (QAH) effect and the quantum magnetoelectric effect. Fermi energy tuning plays a role in inducing phase transitions and developing
Externí odkaz:
http://arxiv.org/abs/2309.13510
Autor:
Yoshikawa, Naotaka, Hirai, Yoshua, Ogawa, Kazuma, Okumura, Shun, Fujiwara, Kohei, Ikeda, Junya, Koretsune, Takashi, Arita, Ryotaro, Mitra, Aditi, Tsukazaki, Atsushi, Oka, Takashi, Shimano, Ryo
The concept of the chiral gauge field (CGF), originally developed in theoretical particle physics, has now emerged in condensed matter systems in materials known as Weyl semimetals. In general, Weyl semimetals emerge from Dirac semimetals when time-r
Externí odkaz:
http://arxiv.org/abs/2209.11932
Autor:
Seki, Takeshi, Lau, Yong-Chang, Ikeda, Junya, Fujiwara, Kohei, Ozawa, Akihiro, Iihama, Satoshi, Nomura, Kentaro, Tsukazaki, Atsushi
Publikováno v:
Phys. Rev. Research 5, 013222-1-14 (2023)
Co$_{3}$Sn$_{2}$S$_{2}$ (CSS) is one of the shandite compounds and becomes a magnetic Weyl semimetal candidate below the ferromagnetic phase transition temperature ($\textit{T}_\textrm{C}$). In this paper, we investigate the temperature ($\textit{T}$
Externí odkaz:
http://arxiv.org/abs/2208.05394
Autor:
Yoshimi, Ryutaro, Kawamura, Minoru, Yasuda, Kenji, Tsukazaki, Atsushi, Takahashi, Kei S., Kawasaki, Masashi, Tokura, Yoshinori
We have investigated the nonreciprocal electrical transport, that is a nonlinear resistance effect depending on the current direction, in multiferroic Rashba semiconductor (Ge,Mn)Te. Due to coexistence of ferromagnetic and ferroelectric orders, (Ge,M
Externí odkaz:
http://arxiv.org/abs/2204.12427
Autor:
Lau, Yong-Chang, Ikeda, Junya, Fujiwara, Kohei, Ozawa, Akihiro, Seki, Takeshi, Nomura, Kentaro, Tsukazaki, Atsushi, Takanashi, Koki
Magnetic Weyl semimetals (mWSMs) are characterized by linearly dispersive bands with chiral Weyl node pairs associated with broken time reversal symmetry. One of the hallmarks of mWSMs is the emergence of large intrinsic anomalous Hall effect. On hea
Externí odkaz:
http://arxiv.org/abs/2203.02356
Autor:
Lee, Jin Hong, Harada, Takayuki, Trier, Felix, Marcano, Lourdes, Godel, Florian, Valencia, Sergio, Tsukazaki, Atsushi, Bibes, Manuel
Rashba interfaces yield efficient spin-charge interconversion and give rise to nonreciprocal transport phenomena. Here, we report magnetotransport experiments in few-nanometer-thick films of PdCoO$_2$, a delafossite oxide known to display a large Ras
Externí odkaz:
http://arxiv.org/abs/2109.14503
Autor:
Ikeda, Junya, Fujiwara, Kohei, Shiogai, Junichi, Seki, Takeshi, Nomura, Kentaro, Takanashi, Koki, Tsukazaki, Atsushi
Publikováno v:
Communications Physics 4, 117 (2021)
Two-dimensional (2D) surface of the topological materials is an attractive channel for the electrical conduction reflecting the linearly-dispersive electronic bands. By applying a reliable systematic thickness t dependent measurement of sheet conduct
Externí odkaz:
http://arxiv.org/abs/2106.01843