Zobrazeno 1 - 10
of 90
pro vyhledávání: '"Maiko, Kofu"'
Autor:
Maiko Kofu, Seiko Ohira-Kawamura, Naoki Murai, Rieko Ishii, Daigorou Hirai, Hiroshi Arima, Kenichi Funakoshi
Publikováno v:
Physical Review Research, Vol 6, Iss 1, p 013006 (2024)
We revisited spin dynamics in archetypical classical spin-glass (SG) systems, such as Cu_{1−x}Mn_{x} (x=0.017, 0.034, and 0.067) dilute alloys and iron aluminosilicate glass, using a modern neutron scattering spectrometer with high neutron flux. Th
Externí odkaz:
https://doaj.org/article/2ab492ca687446bb9a01d9a0e3e898b2
Autor:
Peng Luo, Yanqin Zhai, Peter Falus, Victoria García Sakai, Monika Hartl, Maiko Kofu, Kenji Nakajima, Antonio Faraone, Y Z
Publikováno v:
Nature Communications, Vol 13, Iss 1, Pp 1-9 (2022)
Length scale dependence is important for understanding the collective relaxation dynamics in glass-forming liquids. Here, the authors find in liquid Ca0.4K0.6(NO3)1.4 a change in the dominant relaxation mechanisms around 2.6 Å, below which the relax
Externí odkaz:
https://doaj.org/article/f559b24cc89c426a9a5988849c609ac3
Autor:
Ryutaro Okuma, Maiko Kofu, Shinichiro Asai, Maxim Avdeev, Akihiro Koda, Hirotaka Okabe, Masatoshi Hiraishi, Soshi Takeshita, Kenji M. Kojima, Ryosuke Kadono, Takatsugu Masuda, Kenji Nakajima, Zenji Hiroi
Publikováno v:
Nature Communications, Vol 12, Iss 1, Pp 1-7 (2021)
Dimensionality reduction can occur in magnetically frustrated systems; however, it typically involves lattice distortions. Here, the authors report two- and one-dimensional character of spin correlations in a three-dimensional tetrahedral cluster ant
Externí odkaz:
https://doaj.org/article/a779bbc01fc748dabdf2b74214302550
Autor:
Maiko Kofu, Ryuta Watanuki, Toshiro Sakakibara, Seiko Ohira-Kawamura, Kenji Nakajima, Masato Matsuura, Takeshi Ueki, Kazuhiro Akutsu, Osamu Yamamuro
Publikováno v:
Scientific Reports, Vol 11, Iss 1, Pp 1-8 (2021)
Abstract Glassy magnetic behavior has been observed in a wide range of crystalline magnetic materials called spin glass. Here, we report spin glass behavior in a structural glass of a magnetic ionic liquid, C4mimFeCl4. Magnetization measurements demo
Externí odkaz:
https://doaj.org/article/92420f52927345899b2528cdbaa2b921
Autor:
Xiyang Li, Peng-Fei Liu, Enyue Zhao, Zhigang Zhang, Tatiana Guidi, Manh Duc Le, Maxim Avdeev, Kazutaka Ikeda, Toshiya Otomo, Maiko Kofu, Kenji Nakajima, Jie Chen, Lunhua He, Yang Ren, Xun-Li Wang, Bao-Tian Wang, Zhifeng Ren, Huaizhou Zhao, Fangwei Wang
Publikováno v:
Nature Communications, Vol 11, Iss 1, Pp 1-9 (2020)
In order to optimize thermoelectric (TE) materials which are used to convert thermal energy and electrical energy, the underlying physics needs to be understood. Here, the authors show that by exploiting static local structure distortion, transverse
Externí odkaz:
https://doaj.org/article/b2faf42e0c404ff3a113744e46106b14
Autor:
Peng Wu, Naoki Murai, Tongrui Li, Ryoichi Kajimoto, Mitsutaka Nakamura, Maiko Kofu, Kenji Nakajima, Kang Xia, Kunling Peng, Yue Zhang, Weisheng Zhao
Publikováno v:
New Journal of Physics, Vol 25, Iss 1, p 013032 (2023)
The understanding of the lattice dynamics is essential for engineering the thermal transport properties in quantum materials. Based on the canonical point of view, acoustic phonons are believed to be the principal thermal carriers in heat flow. Here,
Externí odkaz:
https://doaj.org/article/726817e8b8154fdab747ed6ceef35001
Autor:
Satoshi Miyatsu, Maiko Kofu, Akihito Shigematsu, Teppei Yamada, Hiroshi Kitagawa, Wiebke Lohstroh, Giovanna Simeoni, Madhusudan Tyagi, Osamu Yamamuro
Publikováno v:
Structural Dynamics, Vol 8, Iss 5, Pp 054501-054501-8 (2021)
Dynamics of water and other small molecules confined in nanoporous materials is one of the current topics in condensed matter physics. One popular host material is a benzenedicarboxylate-bridging metal (III) complex abbreviated to MIL-53, whose chemi
Externí odkaz:
https://doaj.org/article/afd463d3f2a949aea7da66f924218c7f
Autor:
Yuka Masuda, Shiomi Sakata, Saori Kayahara, Natsumi Irie, Maiko Kofu, Yohei Kono, Toshiro Sakakibara, Yoji Horii, Takashi Kajiwara
Publikováno v:
The Journal of Physical Chemistry C. 127:3295-3306
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5b6b5ef017c1a7d42e5d41b396cce238
https://doi.org/10.1021/acs.jpcc.2c08323
https://doi.org/10.1021/acs.jpcc.2c08323
Autor:
Hiromu Tamatsukuri, Keiga Fukui, Soshi Iimura, Takashi Honda, Tomofumi Tada, Youichi Murakami, Jun-ichi Yamaura, Yoshio Kuramoto, Hajime Sagayama, Takeshi Yamada, Masato Matsuura, Kaoru Shibata, Maiko Kofu, Yukinobu Kawakita, Kazutaka Ikeda, Toshiya Otomo, Hideo Hosono
Publikováno v:
Physical Review B. 107
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ed6671dbdc72286d0a9e39bcbaf7535f
https://doi.org/10.1103/physrevb.107.184114
https://doi.org/10.1103/physrevb.107.184114
Autor:
Qingyong Ren, Mayanak K. Gupta, Min Jin, Jingxuan Ding, Jiangtao Wu, Zhiwei Chen, Siqi Lin, Oscar Fabelo, Jose Alberto Rodríguez-Velamazán, Maiko Kofu, Kenji Nakajima, Marcell Wolf, Fengfeng Zhu, Jianli Wang, Zhenxiang Cheng, Guohua Wang, Xin Tong, Yanzhong Pei, Olivier Delaire, Jie Ma
Publikováno v:
Nature Materials.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::46239d3595dfefa17ecf970a16aa10d1
https://doi.org/10.1038/s41563-023-01560-x
https://doi.org/10.1038/s41563-023-01560-x