Zobrazeno 1 - 10
of 12 870
pro vyhledávání: '"Ishiwata A"'
A strong coupling between electric polarization and elastic deformation in solids is an important factor in creating useful electromechanical nanodevices. Such coupling is typically allowed in insulating materials with inversion symmetry breaking as
Externí odkaz:
http://arxiv.org/abs/2410.04831
Autor:
Nakajima, R., Arai, S., Aoyama, K., Utsumi, Y., Tamba, T., Odaka, H., Tanaka, M., Yorita, K., Aramaki, T., Asaadi, J., Bamba, A., Cannady, N., Coppi, P., De Nolfo, G., Errando, M., Fabris, L., Fujiwara, T., Fukazawa, Y., Ghosh, P., Hagino, K., Hakamata, T., Hijikata, U., Hiroshima, N., Ichihashi, M., Ichinohe, Y., Inoue, Y., Ishikawa, K., Ishiwata, K., Iwata, T., Karagiorgi, G., Kato, T., Kawamura, H., Krizmanic, J., Leyva, J., Malige, A., Mitchell, J. G., Mitchell, J. W., Mukherjee, R., Nakazawa, K., Okuma, K., Perez, K., Poudyal, N., Safa, I., Sasaki, M., Seligman, W., Shirahama, K., Shiraishi, T., Smith, S., Suda, Y., Suraj, A., Takahashi, H., Takashima, S., Tandon, S., Tatsumi, R., Tomsick, J., Tsuji, N., Uchida, Y., Watanabe, S., Yano, Y., Yawata, K., Yoneda, H., Yoshimoto, M., Zeng, J.
GRAMS (Gamma-Ray and AntiMatter Survey) is a next-generation balloon/satellite experiment utilizing a LArTPC (Liquid Argon Time Projection Chamber), to simultaneously target astrophysical observations of cosmic MeV gamma-rays and conduct an indirect
Externí odkaz:
http://arxiv.org/abs/2409.13209
Recent James Webb Space Telescope observations of high-redshift massive galaxy candidates have initiated renewed interest in the important mystery around the formation and evolution of our Universe's largest supermassive black holes (SMBHs). We consi
Externí odkaz:
http://arxiv.org/abs/2408.11098
Autor:
Ishiwata, Koji, Nomura, Kentaro
We investigate collective excitations in magnetic topological insulators (TIs) and their impact on particle axion detection. In the three-dimensional TI model with the Hubbard term, the effective action of magnons and amplitude modes is formulated by
Externí odkaz:
http://arxiv.org/abs/2406.09705
Autor:
Iwata, Toshiya, Hagino, Kouichi, Odaka, Hirokazu, Tamba, Tsubasa, Ichihashi, Masahiro, Kato, Tatsuaki, Ishiwata, Kota, Kuramoto, Haruki, Matsuhashi, Hiroumi, Arai, Shota, Minami, Takahiro, Takashima, Satoshi, Bamba, Aya
We are developing an imaging polarimeter by combining a fine-pixel CMOS image sensor with a coded aperture mask as part of the cipher project, aiming to achieve X-ray polarimetry in the energy range of $10$$\unicode{x2013}$$30~\mathrm{keV}$. A succes
Externí odkaz:
http://arxiv.org/abs/2405.18907
Autor:
Mayo, Alex Hiro, Deaconu, Darius-Alexandru, Masuda, Hidetoshi, Nii, Yoichi, Takahashi, Hidefumi, Belosludov, Rodion Vladimirovich, Ishiwata, Shintaro, Bahramy, Mohammad Saeed, Onose, Yoshinori
Chiral magnetic textures give rise to unconventional magnetotransport phenomena such as the topological Hall effect and nonreciprocal electronic transport. While the correspondence between real-space magnetic topology/symmetry and such transport phen
Externí odkaz:
http://arxiv.org/abs/2404.13856
Autor:
Koga, J., Chiashi, Y., Nakamura, A., Akiba, T., Takahashi, H., Shimojima, T., Ishiwata, S., Ishizaka, K.
Transition metal dichalcogenides with superperiodic lattice distortions have been widely investigated as the platform of ultrafast structural phase manipulations. Here we performed ultrafast electron diffraction on room-temperature TaTe$_2$, which ex
Externí odkaz:
http://arxiv.org/abs/2404.08256
Autor:
Aoyagi, M., Bose, R. G., Chun, S., Gau, E., Hu, K., Ishiwata, K., Iyer, N. K., Kislat, F., Kiss, M., Klepper, K., Krawczynski, H., Lisalda, L., Maeda, Y., Malmborg, F. af, Matsumoto, H., Miyamoto, A., Miyazawa, T., Pearce, M., Rauch, B. F., Cavero, N. Rodriguez, Spooner, S., Takahashi, H., Uchida, Y., West, A. T., Wimalasena, K., Yoshimoto, M.
Publikováno v:
Astropart. Phys. 158 (2024) 102944
XL-Calibur is a balloon-borne Compton polarimeter for X-rays in the $\sim$15-80 keV range. Using an X-ray mirror with a 12 m focal length for collecting photons onto a beryllium scattering rod surrounded by CZT detectors, a minimum-detectable polariz
Externí odkaz:
http://arxiv.org/abs/2402.15229
Autor:
Kakoi, Masataka, Oi, Takashi, Ohshita, Yujiro, Yashima, Mitsuharu, Kuroki, Kazuhiko, Kato, Takeru, Takahashi, Hidefumi, Ishiwata, Shintaro, Adachi, Yoshinobu, Hatada, Naoyuki, Uda, Tetsuya, Mukuda, Hidekazu
Publikováno v:
J. Phys. Soc. Jpn. 93, 053702 (2024)
We report a $^{139}$La-NMR study of polycrystalline samples of multi($n$)-layered nickelates, La$_3$Ni$_2$O$_{7-\delta}$ ($n=2$) and La$_4$Ni$_3$O$_{10-\delta}$ ($n=3$), at ambient pressure. Measurements of the nuclear magnetic resonance (NMR) spectr
Externí odkaz:
http://arxiv.org/abs/2312.11844
Autor:
Takahashi, Hidefumi, Sasaki, Tomohiro, Nakano, Akitoshi, Akiba, Kazuto, Takahashi, Masayuki, Mayo, Alex H., Onose, Masaho, Kobayashi, Tatsuo C., Ishiwata, Shintaro
Given the rarity of metallic systems that exhibit ferroelectric-like transitions, it is apparently challenging to find a system that simultaneously possesses superconductivity and ferroelectric-like structural instability. Here, we report the observa
Externí odkaz:
http://arxiv.org/abs/2312.10354