Zobrazeno 1 - 10
of 13
pro vyhledávání: '"Kiyoshi Ooiwa"'
Autor:
Yuji Muro, Tadashi Fukuhara, Yohei Kamiya, Keisuke Mitsumoto, Shinichi Masubuchi, Hiroshi Tanida, Kiyoshi Ooiwa, Takahiro Namiki
Publikováno v:
Proceedings of the International Conference on Strongly Correlated Electron Systems (SCES2019).
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::303a0641e71ef115faa280418cb2c6fe
https://doi.org/10.7566/jpscp.30.011178
https://doi.org/10.7566/jpscp.30.011178
Publikováno v:
Journal of the Physical Society of Japan. 73:1944-1952
Measurements of electrical resistivity (ρ), magnetoresistance (MR), magnetization (σ) and Mossbauer spectroscopy are performed for Heusler type alloys Fe 2+ x V 1- x Si. At x =0.20 an anomalous peak of residual resistivity and the giant MR (GMR) of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6928301f61ec7e161da9c3f15680058e
https://doi.org/10.1143/jpsj.73.1944
https://doi.org/10.1143/jpsj.73.1944
Autor:
Kiyoshi Ooiwa, Shinichi Masubuchi, Keizo Endo, Tadashi Fukuhara, Hiroko Matsuda, Fumihiko Shimizu, Yoshihiko Takano
Publikováno v:
Journal of the Physical Society of Japan. 73:13-16
We have investigated the field dependence of the Hall resistivity for Fe 2+ x V 1- x Al ( x =0, 0.1, 0.2) and Fe 2+ x V 1- x Ga ( x =-0.1, 0.0, 0.1). The carrier concentration of nonmetallic Fe 2 V...
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::93ed30d75df6c5f26415d38c27a7ef93
https://doi.org/10.1143/jpsj.73.13
https://doi.org/10.1143/jpsj.73.13
Autor:
Keizo Endo, Tsuneaki Goto, Masanori Iijima, Masahumi Tokiyama, Hiroko Matsuda, Hiroyuki Mitamura, Juichiro Arai, Kiyoshi Ooiwa, Yoshihiko Takano
Publikováno v:
Journal of the Physical Society of Japan. 69:1004-1007
Electrical resistivity (ρ), magnetoresistance (MR) and magnetization (σ) for Heusler type alloys Fe 2+ x V 1- x Al with -0.10≦ x ≦0.20 were measured. A giant magnetoresistance (GMR) of about 40% was observed for the weakly inhomogeneous ferroma
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6b41a722f3e6eeeb5ad14828fa915633
https://doi.org/10.1143/jpsj.69.1004
https://doi.org/10.1143/jpsj.69.1004
Publikováno v:
Journal of the Physical Society of Japan. 66:1257-1260
Electrical resistance, magnetoresistance and magnetization were measured for Heusler-type alloys, Fe 2+ x V 1- x Ga. An anomalous giant magnetoresistance (GMR) near 50% was observed for Fe 2 VGa which was a weak and inhomogeneous ferromagnet. For all
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1087eac394bb004ba4f23cb8da567648
https://doi.org/10.1143/jpsj.66.1257
https://doi.org/10.1143/jpsj.66.1257
Publikováno v:
Journal of the Physical Society of Japan. 64:2329-2332
Antiferromagnetism has been found in a Heusler alloy Fe2VSi from measurements of electrical resistivity, magnetic susceptibility and Mossbauer spectroscopy of 57Fe. The Neel and Weiss temperatures are 123 K and -212 K, respectively. The magnetic mome
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3892fc4ae42ba965ba243a468ca11d61
https://doi.org/10.1143/jpsj.64.2329
https://doi.org/10.1143/jpsj.64.2329
Autor:
Keizo Endo, Kiyoshi Ooiwa
Publikováno v:
Journal of Magnetism and Magnetic Materials. :1443-1444
NMR experiments were performed for 51 V and 27 Al in Fe 2 VGa and Fe 2 VAl. NMR spectrum of 51 V in Fe 2 VGa consists of two lines. The Knight shift of 51 V in Fe 2 VGa is almost zero for the one, and is about + 0.6% for the other, and independent of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3b6720a990d169d0a0f99b7bc33fe553
https://doi.org/10.1016/s0304-8853(97)00573-8
https://doi.org/10.1016/s0304-8853(97)00573-8
Autor:
Juichiro Arai, Kiyoshi Ooiwa, Keizo Endo, Masahumi Tokiyama, Shinnichi Masubuchi, Hiroko Matsuda, Hiroshi Shinmen, Yoshihiko Takano, Tsuneaki Goto, Hiroyuki Mitamura
Publikováno v:
Journal of the Physical Society of Japan. 75:094714
Measurements of transport and magnetic properties, 57 Fe-Mossbauer spectroscopy and 51 V-NMR were performed for a Heusler-type alloy series Fe 2+ x V 1- x Si (0.00≦ x ≦0.08). In Fe 2 VSi ( x =0.00)...
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::296e6f02b324f0ab0ce9e4fd15bbd7b2
https://doi.org/10.1143/jpsj.75.094714
https://doi.org/10.1143/jpsj.75.094714
Autor:
Kiyoshi Ooiwa
Publikováno v:
Japanese Journal of Applied Physics. 39:407
Nuclear magnetic resonance(NMR) experiments were performed for 51V and 27A1 in Fe2+x V1-x Al (-0.10≦x≦ 0.10). NMR spectra of 51V and 27A1 were observed. The Knight shifts of 51V and 27A1 are +0.6% and +0.0%, respectively. The shifts of 51V and 27
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::94e394bdec161119dff0cb8865eaadef
https://doi.org/10.7567/jjaps.39s1.407
https://doi.org/10.7567/jjaps.39s1.407
Autor:
Kiyoshi Ooiwa
Publikováno v:
Journal of the Physical Society of Japan. 54:1581-1591
Magnetization measurements and NMR or 59 Co were carried out to investigate the magnetic moment of a pseudobinary alloy system CoTi 1- y Ga y . A Heusler alloy Co 2 TiGa ( y =0.50) shows the characteristics of an itinerant electron ferromagnet which
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::eca6c97aa8b0c3599cdf038db70d83c7
https://doi.org/10.1143/jpsj.54.1581
https://doi.org/10.1143/jpsj.54.1581