Zobrazeno 1 - 10
of 15 009
pro vyhledávání: '"Arima, T"'
A new expression is here proposed for the production term Q in the Boltzmann Equation. This new expression satisfies the H-Theorem (non approximated) and, in the transition to Ordinary Thermodynamics gives a result which is independent on the number
Externí odkaz:
http://arxiv.org/abs/2411.03345
Autor:
Yoshimochi, H., Takagi, R., Ju, J., Khanh, N. D., Saito, H., Sagayama, H., Nakao, H., Itoh, S., Tokura, Y., Arima, T., Hayami, S., Nakajima, T., Seki, S.
Topological swirling spin textures, such as skyrmions and merons, have recently attracted much attention as a unique building block for high-density magnetic information devices. The controlled transformation among different types of such quasi-parti
Externí odkaz:
http://arxiv.org/abs/2402.13751
Autor:
Ihara, Y., Hiyoshi, R., Shimohashi, M., Kumar, R., Sasaki, T., Hirata, M., Araki, Y., Tokunaga, Y., Arima, T.
We have performed $^{115}$In-NMR spectroscopy for Ni$_{2}$InSbO$_6$ with corundum-related crystal structure to reveal magnetic structures that develop in high magnetic fields. At low fields Ni$_{2}$InSbO$_6$ shows a helical magnetic order with a long
Externí odkaz:
http://arxiv.org/abs/2307.09082
Autor:
Zhang, L. -F., Fujita, T. C., Masutake, Y., Kawamura, M., Arima, T., Kumigashira, H., Tokunaga, M., Kawasaki, M.
Publikováno v:
Commun Mater 5, 35 (2024)
Complex oxides are mesmerizing material systems to realize multiple physical properties and functionalities by integrating different elements in a single compound. However, owing to the chemical instability, not all the combinations of elements can b
Externí odkaz:
http://arxiv.org/abs/2305.09201
Autor:
Gen, M., Ishikawa, H., Miyake, A., Yajima, T., Jeschke, H. O., Sagayama, H., Ikeda, A., Matsuda, Y. H., Kindo, K., Tokunaga, M., Kohama, Y., Kurumaji, T., Tokunaga, Y., Arima, T.
Publikováno v:
Phys. Rev. Mater. 7, 104404 (2023)
We investigate the crystallographic and magnetic properties of a chromium-based thiospinel CuGaCr$_{4}$S$_{8}$. From a synchrotron x-ray diffraction experiment and structural refinement, Cu and Ga atoms are found to occupy the tetrahedral $A$-sites i
Externí odkaz:
http://arxiv.org/abs/2303.10671
Autor:
Gen, M., Miyake, A., Yagiuchi, H., Watanabe, Y., Ikeda, A., Matsuda, Y. H., Tokunaga, M., Arima, T., Tokunaga, Y.
The polar magnet CaBaCo$_{4}$O$_{7}$ is known to exhibit the largest magnetic-field-driven electric polarization change ($\Delta P$) associated with an antiferromagnetic (AFM)-ferrimagnetic (FIM) transition in a narrow temperature range between 62 an
Externí odkaz:
http://arxiv.org/abs/2203.16397
Autor:
Khanh, N. D., Nakajima, T., Hayami, S., Gao, S., Yamasaki, Y., Sagayama, H., Nakao, H., Takagi, R., Motome, Y., Tokura, Y., Arima, T., Seki, S.
Publikováno v:
Advanced Science (2022)
Magnetic skyrmion is a topologically stable particle-like swirling spin texture potentially suitable for high-density information bit, which was first observed in noncentrosymmetric magnets with Dzyaloshinskii-Moriya interaction. Recently, nanometric
Externí odkaz:
http://arxiv.org/abs/2201.06237
Autor:
Gen, M., Ishikawa, H., Ikeda, A., Miyake, A., Yang, Z., Okamoto, Y., Mori, M., Takenaka, K., Sagayama, H., Kurumaji, T., Tokunaga, Y., Arima, T., Tokunaga, M., Kindo, K., Matsuda, Y. H., Kohama, Y.
Frustrated magnets with a strong spin-lattice coupling can show rich magnetic phases and the associated fascinating phenomena. A promising platform is the breathing pyrochlore magnet CuInCr$_{4}$S$_{8}$ with localized $S=3/2$ Cr$^{3+}$ ions, which is
Externí odkaz:
http://arxiv.org/abs/2112.08990
Autor:
Masuda, H., Sakai, H., Takahashi, H., Yamasaki, Y., Nakao, A., Moyoshi, T., Nakao, H., Murakami, Y., Arima, T., Ishiwata, S.
Field-dependent magnetic structure of a layered Dirac material EuMnBi$_2$ was investigated in detail by the single crystal neutron diffraction and the resonant x-ray magnetic diffraction techniques. On the basis of the reflection conditions in the an
Externí odkaz:
http://arxiv.org/abs/2003.03719
Autor:
Khanh, N. D., Nakajima, T., Yu, X. Z., Gao, S., Shibata, K., Hirschberger, M., Yamasaki, Y., Sagayama, H., Nakao, H., Peng, L. C., Nakajima, K., Takagi, R., Arima, T., Tokura, Y., Seki, S.
Publikováno v:
Nature Nanotechnology (Advanced Online Publication) (2020)
Magnetic skyrmions are topologically stable spin swirls with particle-like character and potentially suitable for the design of high-density information bits. While most known skyrmion systems arise in noncentrosymmetric systems with Dzyaloshinskii-M
Externí odkaz:
http://arxiv.org/abs/2003.00626