Zobrazeno 1 - 10
of 454
pro vyhledávání: '"YoshiChika Otani"'
Publikováno v:
npj Spintronics, Vol 2, Iss 1, Pp 1-6 (2024)
Abstract Magnons and phonons are engineered in artificial lattices with tunable modes and band dispersions. Recent advance in magnon-phonon coupling shined a light on combining magnonic and phononic crystals as hybrid magnon-phonon crystals, benefit
Externí odkaz:
https://doaj.org/article/739520bfb13d4d7dabe0afb4b49a7377
Autor:
Mingxing Wu, Taishi Chen, Takuya Nomoto, Yaroslav Tserkovnyak, Hironari Isshiki, Yoshinobu Nakatani, Tomoya Higo, Takahiro Tomita, Kouta Kondou, Ryotaro Arita, Satoru Nakatsuji, Yoshichika Otani
Publikováno v:
Nature Communications, Vol 15, Iss 1, Pp 1-9 (2024)
Abstract Antiferromagnets (AFMs) have the natural advantages of terahertz spin dynamics and negligible stray fields, thus appealing for use in domain-wall applications. However, their insensitive magneto-electric responses make controlling them in do
Externí odkaz:
https://doaj.org/article/36ed40eeca6a49cca0ea0d824dc292c8
Autor:
Bivas Rana, YoshiChika Otani
Publikováno v:
Scientific Reports, Vol 13, Iss 1, Pp 1-9 (2023)
Abstract Magnetic damping controls the performance and operational speed of many spintronics devices. Being a tensor quantity, the damping in magnetic thin films often shows anisotropic behavior with the magnetization orientation. Here, we have studi
Externí odkaz:
https://doaj.org/article/151bd59e2b8341009526e6e24dc34243
Autor:
Mingxing Wu, Kouta Kondou, Yoshinobu Nakatani, Taishi Chen, Hironari Isshiki, Tomoya Higo, Satoru Nakatsuji, Yoshichika Otani
Publikováno v:
APL Materials, Vol 11, Iss 8, Pp 081115-081115-6 (2023)
Antiferromagnets with the intrinsic advantages of terahertz spin dynamics and negligible stray fields have been extensively studied for spintronic applications. In particular, spintronic research on antiferromagnets has expanded its focus from collin
Externí odkaz:
https://doaj.org/article/077166bf4ec743728dfef64658d2b93a
Publikováno v:
Frontiers in Physics, Vol 11 (2023)
Mapping magneto-thermoelectric effects, such as the anomalous Nernst effect, are crucial to optimize devices that convert thermal energy to electric energy. In this article, we show the methodology to realize this based on a technique we recently est
Externí odkaz:
https://doaj.org/article/b9e87b9264d142298c5abb83d3e9c01e
Publikováno v:
AIP Advances, Vol 13, Iss 4, Pp 045102-045102-6 (2023)
The magnetic Weyl semimetallic state can lead to intriguing magnetotransport, such as chiral anomaly and the layered quantum Hall effect. Mn3X (X = Sn, Ge) is a noncollinear antiferromagnetic semimetal where a Weyl semimetallic state is stabilized by
Externí odkaz:
https://doaj.org/article/4d70f0ffac63451fb4dc25564f6dae26
Autor:
Kouta Kondou, Yoshichika Otani
Publikováno v:
Frontiers in Physics, Vol 11 (2023)
Spin–charge conversion (SCC) leads to the driving principle of spintronics devices, such as non-volatile magnetic memory and energy harvesting devices from light, sound, and heat to charge current. Recently, controllable SCCs have emerged in materi
Externí odkaz:
https://doaj.org/article/6201d693618048a6a02b5c0ed441ab85
Autor:
Kouta Kondou, Hua Chen, Takahiro Tomita, Muhammad Ikhlas, Tomoya Higo, Allan H. MacDonald, Satoru Nakatsuji, YoshiChika Otani
Publikováno v:
Nature Communications, Vol 12, Iss 1, Pp 1-8 (2021)
Conventional spin-orbit torque (SOT) enables electrical control of in-plane spins, not suitable for perpendicular magnetization. Here, the authors observe a large magnetic-field-like SOT due to a large out-of-plane spin accumulation in topological an
Externí odkaz:
https://doaj.org/article/cad5b41a07cf46f6bee2dfa003f318df
Publikováno v:
Advanced Materials Interfaces, Vol 9, Iss 36, Pp n/a-n/a (2022)
Abstract Under an external magnetic field, surface acoustic waves (SAWs) propagating onto a ferromagnetic thin film can excite ferromagnetic resonance (FMR). The magnetization precessional motion in resonance pumps spin current into the Rashba interf
Externí odkaz:
https://doaj.org/article/396f89d960a34f2d89e108e005961527
Publikováno v:
Communications Materials, Vol 1, Iss 1, Pp 1-9 (2020)
The current surge in data generation necessitates devices that can store and analyze data in an energy efficient way. This Review summarizes and discusses developments on the use of spintronic devices for energy-efficient data storage and logic appli
Externí odkaz:
https://doaj.org/article/6719ee3c165546a7839ccf4a39a1ff0d