Zobrazeno 1 - 10
of 200
pro vyhledávání: '"Ohira-Kawamura S"'
Autor:
Nagl, J., Flavián, D., Hayashida, S., Povarov, K. Yu., Yan, M., Murai, N., Ohira-Kawamura, S., Simutis, G., Hicken, T. J., Luetkens, H., Baines, C., Hauspurg, A., Schwarze, B. V., Husstedt, F., Pomjakushin, V., Fennell, T., Yan, Z., Gvasaliya, S., Zheludev, A.
We present a thorough experimental investigation on single crystals of the rare-earth based frustrated quantum antiferromagnet Pr$_3$BWO$_9$, a purported spin-liquid candidate on the breathing kagome lattice. This material possesses a disordered grou
Externí odkaz:
http://arxiv.org/abs/2402.14107
Autor:
Zhu, M., Romerio, V., Steiger, N., Nabi, S. D., Murai, N., Ohira-Kawamura, S., Povarov, K. Yu., Skourski, Y., Sibille, R., Keller, L., Yan, Z., Gvasaliya, S., Zheludev, A.
Publikováno v:
Phys. Rev. Lett. 133, 186704 (2024)
Magnetic, thermodynamic, neutron diffraction and inelastic neutron scattering are used to study spin correlations in the easy-axis XXZ triangular lattice magnet K2Co(SeO3)2. Despite the presence of quasi-2D "supersolid" magnetic order, the low-energy
Externí odkaz:
http://arxiv.org/abs/2401.16581
Publikováno v:
Phys. Rev. B 105, 134403 (2022)
Spin dynamics of the spin-1/2 kagome lattice antiferromagnet Cs$_2$Cu$_3$SnF$_{12}$ was studied using high-resolution, time-of-flight inelastic neutron scattering. The flat mode, a characteristic of the frustrated kagome antiferromagnet, and the low-
Externí odkaz:
http://arxiv.org/abs/2202.03681
Autor:
Ishii, Y., Yamamoto, A., Sato, N., Nambu, Y., Ohira-Kawamura, S., Murai, N., Mori, T., Mori, S.
Quest for new states of matter near an ordered phase is a promising route for making modern physics forward. By probing thermal properties of a ferroelectric (FE) crystal Ba1-xSrxAl2O4, we have clarified that low-energy excitation of acoustic phonons
Externí odkaz:
http://arxiv.org/abs/2104.01969
Autor:
Iida, K., Yoshida, H. K., Nakao, A., Jeschke, H. O., Iqbal, Y., Nakajima, K., Ohira-Kawamura, S., Munakata, K., Inamura, Y., Murai, N., Ishikado, M., Kumai, R., Okada, T., Oda, M., Kakurai, K., Matsuda, M.
Publikováno v:
Phys. Rev. B 101, 220408(R) (2020)
Crystal and magnetic structures of the mineral centennialite CaCu$_3$(OH)$_6$Cl$_2\cdot0.6$H$_2$O are investigated by means of synchrotron x-ray diffraction and neutron diffraction measurements complemented by density functional theory (DFT) and pseu
Externí odkaz:
http://arxiv.org/abs/2006.12651
Autor:
Iida, K., Kofu, M., Suzuki, K., Murai, N., Ohira-Kawamura, S., Kajimoto, R., Inamura, Y., Ishikado, M., Hasegawa, S., Masuda, T., Yoshida, Y., Kakurai, K., Machida, K., Lee, S. -H.
Publikováno v:
J. Phys. Soc. Jpn. 89, 053702 (2020)
We investigated the low-energy incommensurate (IC) magnetic fluctuations in Sr$_2$RuO$_4$ by the high-resolution inelastic neutron scattering measurements and random phase approximation (RPA) calculations. We observed a spin resonance with energy of
Externí odkaz:
http://arxiv.org/abs/2004.03591
Autor:
Allenspach, S., Biffin, A., Stuhr, U., Tucker, G. S., Ohira-Kawamura, S., Kofu, M., Voneshen, D. J., Boehm, M., Normand, B., Laflorencie, N., Mila, F., Rüegg, Ch.
Publikováno v:
Phys. Rev. Lett. 124, 177205 (2020)
The dimerized quantum magnet BaCuSi$_2$O$_6$ was proposed as an example of "dimensional reduction" arising near the magnetic-field-induced quantum critical point (QCP) due to perfect geometrical frustration of its inter-bilayer interactions. We demon
Externí odkaz:
http://arxiv.org/abs/1911.04161
Autor:
Wo, Hongliang, Wang, Qisi, Shen, Yao, Zhang, Xiaowen, Hao, Yiqing, Feng, Yu, Shen, Shoudong, He, Zheng, Pan, Bingying, Wang, Wenbin, Nakajima, K., Ohira-Kawamura, S., Steffens, P., Boehm, M., Schmalzl, K., Forrest, T. R., Matsuda, M., Zhao, Yang, Lynn, J. W., Yin, Zhiping, Zhao, Jun
Publikováno v:
Phys. Rev. Lett. 122, 217003 (2019)
We report neutron scattering measurements of single-crystalline YFe$_2$Ge$_2$ in the normal state, which has the same crystal structure to the 122 family of iron pnictide superconductors. YFe$_2$Ge$_2$ does not exhibit long range magnetic order, but
Externí odkaz:
http://arxiv.org/abs/1808.07262
Spin crossover is expected to enrich unusual physical states in various types of condensed matter. Through inelastic neutron scattering, we study the spin-state excitations in the canonical and advanced platform, LaCoO$_3$, and reveal that the spatia
Externí odkaz:
http://arxiv.org/abs/1808.05888
Autor:
Tomiyasu, K., Ito, N., Okazaki, R., Takahashi, Y., Onodera, M., Iwasa, K., Nojima, T., Aoyama, T., Ohgushi, K., Ishikawa, Y., Kamiyama, T., Ohira-Kawamura, S., Kofu, M, Ishihara, S.
Spin-state transition, also known as spin crossover, plays a key role in diverse systems, including minerals and biological materials. In theory, the boundary range between the low- and high-spin states is expected to enrich the transition and give r
Externí odkaz:
http://arxiv.org/abs/1712.09169