Zobrazeno 1 - 10
of 1 031
pro vyhledávání: '"Hiroi, Z"'
Publikováno v:
Phys. Rev. Lett. 132, 166702 (2024)
The magnetic ground state of single crystalline RuO$_2$ was investigated by the muon spin rotation/relaxation ($\mu$SR) experiment. The spin precession signal due to the spontaneous internal magnetic field $B_{\rm loc}$, which is expected in the magn
Externí odkaz:
http://arxiv.org/abs/2403.10028
Autor:
Gen, M., Hirai, D., Morita, K., Kogane, S., Matsuyama, N., Yajima, T., Kawamura, M., Deguchi, K., Matsuo, A., Kindo, K., Kohama, Y., Hiroi, Z.
The spin-1/2 Heisenberg antiferromagnet on an anisotropic triangular lattice (ATL) is an archetypal spin system hosting exotic quantum magnetism and dimensional crossover. However, the progress in experimental research on this field has been limited
Externí odkaz:
http://arxiv.org/abs/2311.06040
Autor:
Zvyagin, S. A., Ponomaryov, A. N., Wosnitza, J., Hirai, D., Hiroi, Z., Gen, M., Kohama, Y., Matsuo, A., Matsuda, Y. H., Kindo, K.
Publikováno v:
Nature Communications 13, 6310 (2022)
The observation of spinon excitations in the $S=\frac{1}{2}$ triangular antiferromagnet Ca$_3$ReO$_5$Cl$_2$ reveals a quasi-one-dimensional (1D) nature of magnetic correlations, in spite of the nominally 2D magnetic structure. This phenomenon is know
Externí odkaz:
http://arxiv.org/abs/2210.14864
Autor:
Kataoka, K., Hirai, D., Yajima, T., Nishio-Hamane, D., Ishii, R., Choi, K. -Y., Wulferding, D., Lemmens, P., Kittaka, S., Sakakibara, T., Ishikawa, H., Matsuo, A., Kindo, K., Hiroi, Z.
An osmium chloride with the chemical formula of OsxCl3 (x = 0.81) was synthesized and its crystal structure and thermodynamic properties were investigated. OsxCl3 crystallizes in a layered CdCl2-type structure with the triangular lattice partially oc
Externí odkaz:
http://arxiv.org/abs/2009.07541
Autor:
Kwak, Inho, Lee, Min-Cheol, Park, Byung Cheol, Kim, Choong H., Lee, Bumjoo, Seo, C. W., Yamaura, J., Hiroi, Z., Noh, Tae Won, Kim, K. W.
Publikováno v:
Phys. Rev. B 100, 144309 (2019)
We investigate the ultrafast dynamics of Cd$_2$Os$_2$O$_7$, a prototype material showing a Lifshitz-type transition as a function of temperature. In the paramagnetic metallic state, the photo-reflectivity shows a sub-picosecond relaxation, followed b
Externí odkaz:
http://arxiv.org/abs/1911.12921
Autor:
Koda, A., Hirose, H. T., Miyazaki, M., Okabe, H., Hiraishi, M., Yamauchi, I., Kojima, K. M., Nagashima, I., Yamaura, J., Hiroi, Z., Kadono, R.
Publikováno v:
Phys. Rev. B 100, 245113 (2019)
We report on a novel spin-charge fluctuation in the all-in-all-out pyrochlore magnet Cd$_2$Os$_2$O$_7$, where the spin fluctuation is driven by the conduction of thermally excited electrons/holes and associated fluctuation of Os valence. The fluctuat
Externí odkaz:
http://arxiv.org/abs/1911.12500
Autor:
Okuma, R., Nakamura, D., Okubo, T., Miyake, A., Matsuo, A., Kindo, K., Tokunaga, M., Kawashima, N., Takeyama, S., Hiroi, Z.
Publikováno v:
Nature Communications 10, 1229 (2019)
Search for a new quantum state of matter emerging in a crystal is one of recent trends in condensed matter physics. For magnetic materials, geometrical frustration and high magnetic field are two key ingredients to realize it: a conventional magnetic
Externí odkaz:
http://arxiv.org/abs/1903.07283
Autor:
Vale, J. G., Calder, S., Bogdanov, N. A., Donnerer, C., Sala, M. Moretti, Davies, N. R., Yamaura, J., Hiroi, Z., Mandrus, D., Brink, J. van den, Christianson, A. D., McMorrow, D. F.
Publikováno v:
Phys. Rev. B 101, 014441 (2020)
High-resolution resonant inelastic x-ray scattering (RIXS) measurements ($\Delta$E = 46 meV) have been performed on Cd$_2$Os$_2$O$_7$ through the metal-to-insulator transition (MIT). A magnetic excitation at 125 meV evolves continuously through the M
Externí odkaz:
http://arxiv.org/abs/1812.08689
Autor:
Wawrzyńczak, R., Tanaka, Y., Yoshida, M., Okamoto, Y., Manuel, P., Casati, N., Hiroi, Z., Takigawa, M., Nilsen, G. J.
We present the results of a combined $^7$Li NMR and diffraction study on LiGa$_{0.95}$In$_{0.05}$Cr$_4$O$_8$, a member of LiGa$_{1-x}$In$_{x}$Cr$_4$O$_8$ "breathing" pyrochlore family. Via specific heat and NMR measurements, we find that the complex
Externí odkaz:
http://arxiv.org/abs/1706.08409