Zobrazeno 1 - 10
of 528
pro vyhledávání: '"Kittaka, S"'
Autor:
Yamaguchi, H., Uemoto, N., Okubo, T., Kono, Y., Kittaka, S., Sakakibara, T., Yajima, T., Shimono, S., Iwasaki, Y., Hosokoshi, Y.
Publikováno v:
Phys. Rev. B 104, L060411 (2021)
We present a model compound with a spin-1/2 frustrated square lattice, in which three ferromagnetic (F) interactions and one antiferromagnetic (AF) compet. Considering the effective spin-1 formed by the dominant F dimer, this square lattice can be ma
Externí odkaz:
http://arxiv.org/abs/2108.12761
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
Akademický článek
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Publikováno v:
Phys. Rev. B 100, 054442 (2019)
We examine the magnetic-field-induced criticality of phase boundary near saturation field $H_{\mathrm{c}}$ in the spin-1/2 ferromagnetic (FM)-leg ladder 3-Cl-4-F-V [=3-(3-chloro-4-fluorophenyl)-1,5-diphenylverdazyl], the predominant interactions of w
Externí odkaz:
http://arxiv.org/abs/1908.09076
Autor:
Le, Tian, Sun, Yue, Jin, Hui-Ke, Che, Liqiang, Yin, Lichang, Li, Jie, Pang, G. M., Xu, C. Q., Zhao, L. X., Kittaka, S., Sakakibara, T., Machida, K., Sankar, R., Yuan, H. Q., Chen, G. F., Xu, Xiaofeng, Li, Shiyan, Zhou, Yi, Lu, Xin
Publikováno v:
Science Bulletin 65, 1349 (2020)
Spontaneous symmetry breaking has been a paradigm to describe the phase transitions in condensed matter physics. In addition to the continuous electromagnetic gauge symmetry, an unconventional superconductor can break discrete symmetries simultaneous
Externí odkaz:
http://arxiv.org/abs/1905.11177
Autor:
Uemoto, N., Kono, Y., Kittaka, S., Sakakibara, T., Yajima, T., Iwasaki, Y., Miyamoto, S., Hosokoshi, Y., Yamaguchi, H.
Publikováno v:
Phys. Rev. B 99, 094418 (2019)
We present a model compound for the $S$=1/2 ferromagnetic Heisenberg chain composed of the verdazyl-based complex $[$Zn(hfac)$_2]$$[$4-Cl-$o$-Py-V-(4-F)$_2]$. $Ab$ $initio$ MO calculations indicate a predominant ferromagnetic interaction forming an $
Externí odkaz:
http://arxiv.org/abs/1903.06896
Publikováno v:
Phys. Rev. B 99, 054506 (2019)
This paper demonstrates the anisotropic response of quantum critical fluctuations with respect to the direction of the magnetic field $B$ in Ni-doped CeCoIn$_5$ by measuring the magnetization $M$ and specific heat $C$. The results show that $M/B$ at
Externí odkaz:
http://arxiv.org/abs/1902.04717
Autor:
Liu, J., Kittaka, S., Johnson, R. D., Lancaster, T., Singleton, J., Sakakibara, T., Kohama, Y., van Tol, J., Ardavan, A., Williams, B. H., Blundell, S. J., Manson, Z. E., Manson, J. L., Goddard, P. A.
We investigate the low-temperature magnetic properties of the molecule-based chiral spin chain [Cu(pym)(H$_2$O)$_4$]SiF$_6\cdot$H$_2$O (pym = pyrimidine). Electron-spin resonance, magnetometry and heat capacity measurements reveal the presence of sta
Externí odkaz:
http://arxiv.org/abs/1901.02292
Autor:
Iwasaki, Y., Kida, T., Hagiwara, M., Kawakami, T., Kono, Y., Kittaka, S., Sakakibara, T., Hosokoshi, Y., Yamaguchi, H.
Publikováno v:
Phys. Rev. B 98, 224411 (2018)
We successfully synthesized a verdazyl-based charge-transfer salt $[$$o$-MePy-V-($p$-Br)$_2]$FeCl$_4$, which has an $S_{\rm{V}}$=1/2 on the radical $o$-MePy-V-($p$-Br)$_2$ and an $S_{\rm{Fe}}$=5/2 on the FeCl$_4$ anion. $Ab$ $initio$ molecular orbita
Externí odkaz:
http://arxiv.org/abs/1812.08334
Autor:
Yamaguchi, H., Sasaki, Y., Okubo, T., Yoshida, M., Kida, T., Hagiwara, M., Kono, Y., Kittaka, S., Sakakibara, T., Takigawa, M., Iwasaki, Y., Hosokoshi, Y.
We present a new model compound with the S = 1/2 frustrated square lattice composed of the charge-transfer salt (o-MePy-V)PF6. Ab initio calculations indicate the formation of an S = 1/2 square lattice, in which six types of nearest-neighbor ferromag
Externí odkaz:
http://arxiv.org/abs/1808.06812