Zobrazeno 1 - 10
of 227
pro vyhledávání: '"KAWAMURA, MINORU"'
Autor:
Birch, Max T., Belopolski, Ilya, Fujishiro, Yukako, Kawamura, Minoru, Kikkawa, Akiko, Taguchi, Yasujiro, Hirschberger, Max, Nagaosa, Naoto, Tokura, Yoshinori
The coupling of conduction electrons and magnetic textures leads to quantum transport phenomena described by the language of emergent electromagnetic fields [1-3]. For magnetic skyrmions, spin-swirling particle-like objects, an emergent magnetic fiel
Externí odkaz:
http://arxiv.org/abs/2406.01847
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:
Wang, Taige, Wu, Chen, Mogi, Masataka, Kawamura, Minoru, Tokura, Yoshinori, Shen, Zhi-Xun, You, Yi-Zhuang, Allen, Monica T.
Publikováno v:
Phys. Rev. B 108, 235432 (2023)
Microwave impedance microscopy (MIM) has been utilized to directly visualize topological edge states in many quantum materials, from quantum Hall systems to topological insulators, across the GHz regime. While the microwave response for conventional
Externí odkaz:
http://arxiv.org/abs/2304.09227
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:
Ueda, Kentaro, Ishizuka, Hiroaki, Kriener, Markus, Kitou, Shunsuke, Maryenko, Denis, Kawamura, Minoru, Arima, Taka-hisa, Kawasaki, Masashi, Tokura, Yoshinori
We report experimental signatures of topological transitions among the Weyl semimetal states of pyrochlore Pr2Ir2O7, where the Kondo coupling between the Ir topological electrons and the spin-ice like orders of Pr moments plays a decisive role. The m
Externí odkaz:
http://arxiv.org/abs/2202.09984
Autor:
Yoshimi, Ryutaro, Masuko, Makoto, Ogawa, Naoki, Kawamura, Minoru, Tsukazaki, Atsushi, Takahashi, Kei S., Kawasaki, Masashi, Tokura, Yoshinori
Publikováno v:
Phys. Rev. Materials 5, 094202 (2021)
Epitaxial thin films of (Sn$_{x}$Pb$_{1-x}$)$_{1-y}$In$_{y}$Te were successfully grown by molecular-beam-epitaxy (MBE) in a broad range of compositions (0 $\leq$ x $\leq$ 1, 0 $\leq$ y $\leq$ 0.23). We investigated electronic phases of the films by t
Externí odkaz:
http://arxiv.org/abs/2104.09436
Autor:
Kawamura, Minoru, Mogi, Masataka, Yoshimi, Ryutaro, Tsukazaki, Atsushi, Kozuka, Yusuke, Takahashi, Kei S., Kawasaki, Masashi, Tokura, Yoshinori
We report a current scaling study of a quantum phase transition between a quantum anomalous Hall insulator and a trivial insulator on the surface of a heterostructure film of magnetic topological insulators. The transition was observed by tilting the
Externí odkaz:
http://arxiv.org/abs/2007.01197
Autor:
Uchida, Masaki, Sakuraba, Ikkei, Kawamura, Minoru, Ide, Motoharu, Takahashi, Kei S., Tokura, Yoshinori, Kawasaki, Masashi
Publikováno v:
Phys. Rev. B 101, 035107 (2020)
We have studied fundamental properties of weak-link Sr2RuO4/Sr2RuO4 Josephson junctions fabricated by making a narrow constriction on superconducting Sr2RuO4 films through laser micro-patterning. The junctions show a typical overdamped behavior with
Externí odkaz:
http://arxiv.org/abs/2001.01844
Autor:
Watanabe, Ryota, Yoshimi, Ryutaro, Kawamura, Minoru, Mogi, Masataka, Tsukazaki, Atsushi, Yu, Xiuzhen, Nakajima, Kiyomi, Takahashi, Kei S, Kawasaki, Masashi, Tokura, Yoshinori
The quantum anomalous Hall effect (QAHE) is an exotic quantum phenomenon originating from dissipation-less chiral channels at the sample edge. While the QAHE has been observed in magnetically doped topological insulators (TIs), exploiting magnetic pr
Externí odkaz:
http://arxiv.org/abs/1908.07163