Zobrazeno 1 - 10
of 3 856
pro vyhledávání: '"Kono, Y."'
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:
Yamaguchi, H., Iwasaki, Y., Kono, Y., Okubo, T., Miyamoto, S., Hosokoshi, Y., Matsuo, A., Sakakibara, T., Kida, T., Hagiwara, M.
Publikováno v:
Phys. Rev. B 103, L220407 (2021)
We present a model compound with a spin-1/2 spatially anisotropic frustrated square lattice, in which three antiferromagnetic interactions and one ferromagnetic interaction are competing. We observe an unconventional gradual increase in the low-tempe
Externí odkaz:
http://arxiv.org/abs/2106.12126
Autor:
Yamaguchi, H., Okita, T., Iwasaki, Y., Kono, Y., Uemoto, N., Hosokoshi, Y., Kida, T., Kawakami, T., Matsuo, A., Hagiwara, M.
We present a mixed spin-(1/2, 5/2) chain composed of a charge-transfer salt (4-Br-$o$-MePy-V)FeCl$_4$. We observe the entire magnetization curve up to saturation, which exhibits a clear Lieb-Mattis magnetization plateau and subsequent quantum phase t
Externí odkaz:
http://arxiv.org/abs/2004.10416
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:
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]$$[$4-Cl-$o$-Py-V-(4-F)$_2]$. $Ab$ $initio$ MO calculations indicate a predominant ferromagnetic interaction forming an $
Externí odkaz:
http://arxiv.org/abs/1903.06896
Publikováno v:
Phys. Rev. B 99, 054506 (2019)
This paper demonstrates the anisotropic response of quantum critical fluctuations with respect to the direction of the magnetic field $B$ in Ni-doped CeCoIn$_5$ by measuring the magnetization $M$ and specific heat $C$. The results show that $M/B$ at
Externí odkaz:
http://arxiv.org/abs/1902.04717
Autor:
Iwasaki, Y., Kida, T., Hagiwara, M., Kawakami, T., Kono, Y., Kittaka, S., Sakakibara, T., Hosokoshi, Y., Yamaguchi, H.
Publikováno v:
Phys. Rev. B 98, 224411 (2018)
We successfully synthesized a verdazyl-based charge-transfer salt $[$$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
Publikováno v:
Phys. Rev. B 97, 100406(R) (2018)
Quantum criticality of the spin-1/2 ferromagnetic-leg ladder 3-I-V [=3-(3-iodophenyl)-1,5-diphenylverdazyl] has been examined with respect to the antiferromagnetic to paramagnetic phase transition near the saturation field $H_{c}$. The phase boundary
Externí odkaz:
http://arxiv.org/abs/1803.10388