Zobrazeno 1 - 10
of 36 943
pro vyhledávání: '"Sasaki, T"'
Autor:
Li, Z. H., Suto, H., Barwal, V., Masuda, K., Sasaki, T. T., Chen, Z. X., Tajiri, H., Kumara, L. S. R., Koganezawa, T., Amemiya, K., Kokado, S., Hono, K., Sakuraba, Y.
Magnetic materials with negative spin polarization have attracted attention for their potential to increase the design freedom of spintronic devices. This study investigated the effects of off-stoichiometry on the atomic ordering, microstructure, and
Externí odkaz:
http://arxiv.org/abs/2405.06362
Autor:
Tokiwa, Y., Opletal, . P., Sakai, H., Kambe, S., Yamamoto, E., Kimata, M., Awaji, S., Sasaki, T., Aoki, D., Haga, Y., Tokunaga, Y.
Publikováno v:
Phys. Rev. B 109, L140502 (2024)
The normal-conducting state of the superconductor UTe$_2$ is studied by entropy analysis for magnetic fields along the $b$-axis, obtained from magnetization using the relation $(\partial M/\partial T)_B=(\partial S/\partial B)_T$. We observe a strong
Externí odkaz:
http://arxiv.org/abs/2402.16258
Observation of gamma rays up to 320 TeV from the middle-aged TeV pulsar wind nebula HESS J1849$-$000
Autor:
Amenomori, M., Asano, S., Bao, Y. W., Bi, X. J., Chen, D., Chen, T. L., Chen, W. Y., Chen, Xu, Chen, Y., Cirennima, Cui, S. W., Danzengluobu, Ding, L. K., Fang, J. H., Fang, K., Feng, C. F., Feng, Zhaoyang, Feng, Z. Y., Gao, Qi, Gomi, A., Gou, Q. B., Guo, Y. Q., Guo, Y. Y., Hayashi, Y., He, H. H., He, Z. T., Hibino, K., Hotta, N., Hu, Haibing, Hu, H. B., Hu, K. Y., Huang, J., Jia, H. Y., Jiang, L., Jiang, P., Jin, H. B., Kasahara, K., Katayose, Y., Kato, C., Kato, S., Kawahara, I., Kawashima, T., Kawata, K., Kozai, M., Kurashige, D., Labaciren, Le, G. M., Li, A. F., Li, H. J., Li, W. J., Li, Y., Lin, Y. H., Liu, B., Liu, C., Liu, J. S., Liu, L. Y., Liu, M. Y., Liu, W., Lu, H., Meng, X. R., Meng, Y., Munakata, K., Nagaya, K., Nakamura, Y., Nakazawa, Y., Nanjo, H., Ning, C. C., Nishizawa, M., Noguchi, R., Ohnishi, M., Okukawa, S., Ozawa, S., Qian, X., Qian, X. L., Qu, X. B., Saito, T., Sakakibara, Y., Sakata, M., Sako, T., Sako, T. K., Sasaki, T., Shao, J., Shibata, M., Shiomi, A., Sugimoto, H., Takano, W., Takita, M., Tan, Y. H., Tateyama, N., Torii, S., Tsuchiya, H., Udo, S., Wang, H., Wang, S. F., Wang, Y. P., Wangdui, Wu, H. R., Wu, Q., Xu, J. L., Xue, L., Yang, Z., Yao, Y. Q., Yin, J., Yokoe, Y., Yu, Y. L., Yuan, A. F., Zhai, L. M., Zhang, H. M., Zhang, J. L., Zhang, X., Zhang, X. Y., Zhang, Y., Zhang, Yi, Zhang, Ying, Zhao, S. P., Zhaxisangzhu, Zhou, X. X., Zou, Y. H.
Gamma rays from HESS J1849$-$000, a middle-aged TeV pulsar wind nebula (PWN), are observed by the Tibet air shower array and the muon detector array. The detection significance of gamma rays reaches $4.0\, \sigma$ and $4.4\, \sigma$ levels above 25 T
Externí odkaz:
http://arxiv.org/abs/2308.13781
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:
Tokiwa, Y., Kambe, H. Sakai. S., Opletal, P., Yamamoto, E., Kimata, M., Awaji, S., Sasaki, T., Yanase, Y., Haga, Y., Tokunaga, Y.
Publikováno v:
Phys. Rev. B 108, 144502 (2023)
The vortex dynamics in the spin-triplet superconductor, UTe$_2$, are studied by measuring the DC electrical resistivity with currents along the $a$-axis under magnetic fields along the $b$-axis. Surprisingly, we have discovered an island region of lo
Externí odkaz:
http://arxiv.org/abs/2305.17840
Autor:
Tokiwa, Y., Opletal, P., Sakai, H., Kubo, K., Yamamoto, E., Kambe, S., Kimata, M., Awaji, S., Sasaki, T., Aoki, D., Tokunaga, Y., Haga, Y.
Influence of metamagnetism on superconductivity is studied for the field along an easy $a$-axis by AC magnetic susceptibility, magnetization, and magnetocaloric effect (MCE) in UTe$_2$. The improvement of crystal quality leads to an upward curvature
Externí odkaz:
http://arxiv.org/abs/2210.11769
Autor:
Sakai, H., Tokiwa, Y., Opletal, P., Kimata, M., Awaji, S., Sasaki, T., Aoki, D., Kambe, S., Tokunaga, Y., Haga, Y.
Publikováno v:
Phys. Rev. Lett. 130, 196002 (2023)
The superconducting (SC) phase diagram in uranium ditelluride is explored under magnetic fields ($H$) along the hard magnetic b-axis using a high-quality single crystal with $T_{\rm c} = 2.1$ K. Simultaneous electrical resistivity and AC magnetic sus
Externí odkaz:
http://arxiv.org/abs/2210.05909
Autor:
Yoneyama, N., Nuryadin, M. K., Tsumuraya, T., Iguchi, S., Takei, T., Kumada, N., Nagao, M., Tanaka, I., Sasaki, T.
Publikováno v:
J. Phys. Soc. Jpn. vol. 91 113704 (2022)
We report the band structure calculations and the experimental results of resistivity and magnetic susceptibility in a spin-1/2 (BEDT-TTF)$^{\bullet +}$ monomer Mott insulator (BEDT-TTF)Cu[N(CN)$_2$]$_2$. The band calculations indicate a Dirac semime
Externí odkaz:
http://arxiv.org/abs/2209.13996
Autor:
Kinjo, K., Fujibayashi, H., Kitagawa, S., Ishida, K., Tokunaga, Y., Sakai, H., Kambe, S., Nakamura, A., Shimizu, Y., Homma, Y., Li, D. X., Honda, F., Aoki, D., Hiraki, K., Kimata, M., Sasaki, T.
Publikováno v:
Physical Review B 107 L060502 (2023)
UTe2 is a recently discovered spin-triplet superconductor. One of the characteristic features of UTe2 is a magnetic field (H)-boosted superconductivity above 16 T when H is applied exactly parallel to the b axis. To date, this superconducting (SC) st
Externí odkaz:
http://arxiv.org/abs/2206.02444
Autor:
Ishida, K., Matsuzaki, S., Manago, M., Hattori, T., Kitagawa, S., Hirata, M., Sasaki, T., Aoki, D.
The mechanism of unconventional superconductivity, such as high-temperature-cuprate, Fe-based, and heavy-fermion superconductors, has been studied as a central issue in condensed-matter physics. Spin fluctuations, instead of phonons, are considered t
Externí odkaz:
http://arxiv.org/abs/2109.14426