Zobrazeno 1 - 10
of 56
pro vyhledávání: '"Akaki, Mitsuru"'
Autor:
Kato, Yasuyuki, Kimura, Kenta, Miyake, Atsushi, Tokunaga, Masashi, Matsuo, Akira, Kindo, Koichi, Akaki, Mitsuru, Hagiwara, Masayuki, Kimura, Shojiro, Kimura, Tsuyoshi, Motome, Yukitoshi
Publikováno v:
Phys. Rev. B 99, 024415 (2019)
We report our combined experimental and theoretical study of magnetoelectric properties of an antiferromagnet Sr(TiO)Cu$_4$(PO$_4$)$_4$, in comparison with the isostructurals Ba(TiO)Cu$_4$(PO$_4$)$_4$ and Pb(TiO)Cu$_4$(PO$_4$)$_4$. The family of comp
Externí odkaz:
http://arxiv.org/abs/1810.11929
Autor:
Kimura, Kenta, Kato, Yasuyuki, Yamauchi, Kunihiko, Miyake, Atsushi, Tokunaga, Masashi, Matsuo, Akira, Kindo, Koichi, Akaki, Mitsuru, Hagiwara, Masayuki, Kimura, Shojiro, Toyoda, Masayuki, Motome, Yukitoshi, Kimura, Tsuyoshi
Publikováno v:
Phys. Rev. Materials 2, 104415 (2018)
We perform a combined experimental and theoretical study of a magnetic-field ($B$) induced evolution of magnetic and ferroelectric properties in an antiferromagnetic material Pb(TiO)Cu$_4$(PO$_4$)$_4$, whose structure is characterized by a staggered
Externí odkaz:
http://arxiv.org/abs/1807.10457
Autor:
Soda, Minoru, Hayashida, Shohei, Yoshida, Toshiya, Akaki, Mitsuru, Hagiwara, Masayuki, Avdeev, Maxim, Zaharko, Oksana, Masuda, Takatsugu
Magnetic structure of the multiferroic Ca$_{2}$CoSi$_{2}$O$_{7}$ was determined by neutron diffraction techniques. Combination of the polycrystalline and single-crystal samples experiments revealed a collinear antiferromagnetic structure with the eas
Externí odkaz:
http://arxiv.org/abs/1703.05476
Autor:
Akaki, Mitsuru, Yoshizawa, Daichi, Okutani, Akira, Kida, Takanori, Romhányi, Judit, Penc, Karlo, Hagiwara, Masayuki
Publikováno v:
Phys. Rev. B 96, 214406 (2017)
Exotic spin-multipolar ordering in spin transition metal insulators has so far eluded unambiguous experimental observation. A less studied, but perhaps more feasible fingerprint of multipole character emerges in the excitation spectrum in the form of
Externí odkaz:
http://arxiv.org/abs/1702.04158
Akademický článek
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Autor:
Kato, Yasuyuki, Kimura, Kenta, Miyake, Atsushi, Tokunaga, Masashi, Matsuo, Akira, Kindo, Koichi, Akaki, Mitsuru, Hagiwara, Masayuki, Sera, Masakazu, Kimura, Tsuyoshi, Motome, Yukitoshi
Publikováno v:
Phys. Rev. Lett. 118, 107601 (2017)
Magnetoelectric properties are studied by a combined experimental and theoretical study of a quasi-two-dimensional material composed of square cupolas, Ba(TiO)Cu$_4$(PO$_4$)$_4$. The magnetization is measured up to above the saturation field, and sev
Externí odkaz:
http://arxiv.org/abs/1611.00086
Magnetoelectric effects in the chiral magnet CsCuCl$_3$ have been investigated through the magnetization and electric polarization measurements in pulsed high magnetic fields. If the magnetic field is applied normal to the spin chiral c-axis, a plate
Externí odkaz:
http://arxiv.org/abs/1509.00280
Publikováno v:
J. Phys. Soc. Jpn. 83, 093704 (2014)
Magnetic and dielectric properties of \aa kermanite Ca$_2$CoSi$_2$O$_7$ single crystals were investigated in pulsed high magnetic fields. In magnetic fields along the $c$ axis, this material shows a magnetization plateau in a wide range of field belo
Externí odkaz:
http://arxiv.org/abs/1407.6450
Publikováno v:
J. Phys. Soc. Jpn. 80 (2011) 094706
We have investigated the magnetic and dielectric properties of orthorhombic Eu$_{1-y}$Y$_y$MnO$_3$ ($0\leq y\leq 0.6$) single crystals without the presence of the 4$f$ magnetic moments of the rare-earth ions. In $y\geq 0.2$, the magnetic-structure dr
Externí odkaz:
http://arxiv.org/abs/1107.2733
Publikováno v:
J. Phys. Soc. Jpn. 80 (2011) 074708
We have investigated electron- and hole-doping effects on $A$-site ordered perovskite manganite NdBaMn$_2$O$_6$, which has the $A$-type (layered) antiferromagnetic (AFM) ground state. Electrons (holes) are introduced by partial substitution of Ba$^{2
Externí odkaz:
http://arxiv.org/abs/1105.2366