Zobrazeno 1 - 10
of 21
pro vyhledávání: '"Yoichi Nishiwaki"'
Publikováno v:
Journal of the Physical Society of Japan. 73:2841-2844
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1aa2686b4e04636da4e6de920830b364
https://doi.org/10.1143/jpsj.73.2841
https://doi.org/10.1143/jpsj.73.2841
Publikováno v:
Journal of the Physical Society of Japan. 72:2608-2613
Successive structural phase transitions with ferroelectricity were found in TlCoCl 3 through dielectric constant measurements and D – E hysteresis loop observations. The sequence of the transitions is identical with that in RbMnBr 3 and TlFeCl 3 ,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::437989ee53a94e73dab403eb2439b08a
https://doi.org/10.1143/jpsj.72.2608
https://doi.org/10.1143/jpsj.72.2608
Autor:
Katsunori Iio, Yoichi Nishiwaki, Takeo Tojo, K. Yamanaka, Tetsuya Kato, Tooru Atake, Toshiharu Mitsui
Publikováno v:
Journal of Thermal Analysis and Calorimetry. 70:371-378
The complex phase transitions involving dielectricity and magnetism on distorted triangular lattice antiferromagnets, "KNiCl3-family" crystals, which have the crystal structures derived from the prototype CsNiCl3, were studied through the heat capaci
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::80395d2c69bed6a6e53aa569b9c85393
https://doi.org/10.1023/a:1021655919765
https://doi.org/10.1023/a:1021655919765
Autor:
Takahiko Sasaki, Masumi Ohno, Koki Naruse, Takayuki Kawamata, Yoshiharu Matsuoka, Yoji Koike, Tetsuya Kato, Yoichi Nishiwaki
Thermal conductivity measurements have been carried out for single crystals of the onedimensional (1D) antiferromagnetic (AF) Ising-like spin system ACoX3 (A = Rb, Cs; X = Cl, Br). A shoulder originating from the thermal conductivity due to spin exci
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d008976754228fce6f3919626647dc5a
http://arxiv.org/abs/1405.3098
http://arxiv.org/abs/1405.3098
Autor:
Yoichi Nishiwaki, Tota Nakamura
Extensive Monte Carlo simulations are performed to analyze a recent neutron diffraction experiment on a distorted triangular lattice compound RbCoBr$_3$. We consider a spin-lattice model, where both spin and lattice are Ising variables. This model ex
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f37957fe50a0621be749dcf42388522f
Autor:
Norikazu Todoroki, Yoichi Nishiwaki
We study the lattice-spin model of RbCoBr$_3$ which is proposed by Shirahata and Nakamura, by mean field approximation. This model is an Ising spin system on a distorted triangular lattice. There are two kinds of frustrated variables, that is, the la
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fc230590d417534ac11ee1a409ac791f
Autor:
Haruhiko Kuroe, Toshihisa Yamaguchi, Tetsuya Kato, Yoichi Nishiwaki, Katsunori Iio, Mitsuru Akaki, Hideki Kuwahara, Masaaki Takashige
Publikováno v:
Journal of the Physical Society of Japan. 83:114708
The temperature dependence of the complex dielectric constant of RbCoBr3 along the hexagonal c-axis was measured in the frequency range from 1 kHz to 1 MHz under magnetic fields of up to 12 T applied parallel to the c-axis. On the basis of the observ
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::dcc6d60be1ddbfa92e5190d9b5632b78
https://doi.org/10.7566/jpsj.83.114708
https://doi.org/10.7566/jpsj.83.114708
Publikováno v:
Journal of the Physical Society of Japan. 82:104717
High-field magnetization measurements were performed on the quasi-one-dimensional Ising-like antiferromagnet TlCoCl3 up to 68 T. The magnetization curve \(M(H)\) at 1.4 K showed a nonlinear increase. The field derivative of the magnetization \(\mathr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a1f5ecc6e55552c76b35d82d6b2e1e3c
https://doi.org/10.7566/jpsj.82.104717
https://doi.org/10.7566/jpsj.82.104717
Autor:
Katsunori Iio, Yoichi Nishiwaki, Toshihisa Yamaguchi, Masaaki Takashige, Toshiharu Mitsui, Tetsuya Kato
Publikováno v:
Journal of the Physical Society of Japan. 82:074701
Thermal expansion and dielectric measurements of RbCoBr3 were performed to examine the lattice distortion accompanied by structural phase transitions. It was confirmed that RbCoBr3 undergoes structural phase transitions at 90, 37, and 10 K because it
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d6d3e1fb4e38bcd28af832628f9fe748
https://doi.org/10.7566/jpsj.82.074701
https://doi.org/10.7566/jpsj.82.074701
Autor:
Yoichi Nishiwaki, Tetsuya Kato, Kazuhisa Kakurai, Masashi Tokunaga, Akira Oosawa, Koji Kaneko
Publikováno v:
Journal of the Physical Society of Japan. 80:084711
The successive magnetic phase transitions of the distorted-triangular-lattice antiferromagnet RbFeBr 3 have been investigated by single-crystal neutron diffraction measurements. The intermediate magnetic phase ( T N2 = 2.0 K< T < T N1 = 5.6 K) appear
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0b470c8b16d67909e2c0da4ac0fee905
https://doi.org/10.1143/jpsj.80.084711
https://doi.org/10.1143/jpsj.80.084711