Zobrazeno 1 - 10
of 29
pro vyhledávání: '"Shigeki Yonezawa"'
Autor:
Shigeki Yonezawa, Yuji Muraoka, Yohei Nagao, T. Kato, Jun-ichi Yamaura, Yuichi Kasahara, Koji Hashimoto, Zenji Hiroi, Yasuhiro H. Matsuda, Takasada Shibauchi, Y. Shimono
Publikováno v:
Journal of Physics and Chemistry of Solids. 69:3228-3231
To elucidate the superconducting gap structure and the influence of rattling motion on quasiparticle dynamics in the superconducting state of KOs 2 O 6 , thermal conductivity and microwave surface impedance were measured at low temperatures. The magn
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7a7f874be4e20a57bbe4bda745811bcc
https://doi.org/10.1016/j.jpcs.2008.06.058
https://doi.org/10.1016/j.jpcs.2008.06.058
Autor:
Takafumi Kita, Yasuhiro H. Matsuda, Manfred Sigrist, Takasada Shibauchi, Yoshiya Kasahara, Y. Shimono, Lia Krusin-Elbaum, Shigeki Yonezawa, Ross D. McDonald, Gianni Blatter, Masao Arai, Zenji Hiroi, Charles H. Mielke
Publikováno v:
Journal of Physics: Conference Series. 51:295-298
We determine the temperature dependence of the upper critical field Hc2 in KOs2O6 from resistivity and magnetic measurements in high magnetic fields up to 50 T. By both techniques we find linear temperature dependence all the way below Tc and uncommo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::da3099e4b770f4d218d1b3254365fec3
https://doi.org/10.1088/1742-6596/51/1/068
https://doi.org/10.1088/1742-6596/51/1/068
Publikováno v:
Journal of the Physical Society of Japan. 73:1651-1654
Publisher's note: This article has been retracted by the authors. For details of the retraction, please see the following article. Although retracted, the original PDF file of this article remains uploaded and can be accessed by following the link gi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::09d45fd50b8e7de27f265353b2b10784
https://doi.org/10.1143/jpsj.73.1651
https://doi.org/10.1143/jpsj.73.1651
Publikováno v:
Journal of Physics: Condensed Matter. 16:L9-L12
We report the discovery of a new superconductor KOs2O6. The compound crystallizes in a defect pyrochlore structure, where Os atoms form a corner-sharing tetrahedral network called the pyrochlore lattice. Resistivity and magnetic susceptibility measur
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a4ecc2b7ccc7134fb348c9758b2e30c9
https://doi.org/10.1088/0953-8984/16/3/l01
https://doi.org/10.1088/0953-8984/16/3/l01
Publikováno v:
Solid State Communications. 129:245-248
Effects of epitaxial stress on the metal–insulator transition of V2O3 have been studied for in the form of epitaxial thin films grown on α-Al2O3 (0001) and LiTaO3 (0001) substrates. A metallic phase is stabilized down to 2 K in the V2O3 thin film
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2b8db67ad603afc8c2a2bf6e011bb75b
https://doi.org/10.1016/j.ssc.2003.10.024
https://doi.org/10.1016/j.ssc.2003.10.024
Autor:
Yuichi Kasahara, Y. Shimono, T. Kato, Yohei Nagao, Zenji Hiroi, Takasada Shibauchi, Koji Hashimoto, Shigeki Yonezawa, Jun-ichi Yamaura, Yuji Muraoka, Yasuhiro H. Matsuda
Publikováno v:
Physica B: Condensed Matter. 403:1068-1070
To elucidate the superconducting gap structure and the influence of rattling motion on quasiparticle dynamics in the superconducting state of KOs 2 O 6 , the thermal conductivity and microwave surface impedance were measured at low temperatures. The
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::87630c7a3404de38a7e8b3c3c964b33f
https://doi.org/10.1016/j.physb.2007.10.090
https://doi.org/10.1016/j.physb.2007.10.090
Autor:
Yuji Muraoka, Kazuto Kodama, Jun Kikuchi, Zenji Hiroi, Shigeki Yonezawa, Koya Arai, Masashi Takigawa
Publikováno v:
Physica B: Condensed Matter. :488-490
We report results of nuclear magnetic resonance (NMR) experiments on 39K and 87Rb nuclei in the new superconductors AOs 2 O 6 ( A = K or Rb). These compounds crystallize in the β -pyrochlore structure. In the superconducting phase, we found a small
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9db2f71a251ff7d02c5413dbf9328abf
https://doi.org/10.1016/j.physb.2005.01.123
https://doi.org/10.1016/j.physb.2005.01.123
Autor:
Shigeki Yonezawa, Takahiro Shimojima, Tomohiko Saitoh, Ashish Chainani, Takayuki Kiss, Yuji Muraoka, Y. Shibata, Shik Shin, X. Y. Wang, Kyoko Ishizaka, Shuntaro Watanabe, C. T. Chen, Takayoshi Yokoya, Zenji Hiroi, Tadashi Togashi, Jun-ichi Yamaura
Publikováno v:
Physical Review Letters. 99
The electronic structure near the Fermi level (E F ) of the β-pyrochlore superconductor KOs 2 O 6 is studied using laser-excited ultrahigh-resolution photoemission spectroscopy. The superconducting gap clearly opens across the superconducting transi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fe883197fbe470507c702d02e230ce1d
https://doi.org/10.1103/physrevlett.99.117003
https://doi.org/10.1103/physrevlett.99.117003
Publikováno v:
Physical Review B. 76
Superconducting and normal-state properties of the $\ensuremath{\beta}$-pyrochlore oxide $\mathrm{K}{\mathrm{Os}}_{2}{\mathrm{O}}_{6}$ are studied by means of thermodynamic and transport measurements. It is shown that the superconductivity is of conv
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ce919d4759bc23d1cb5d4d67be4e2f28
https://doi.org/10.1103/physrevb.76.014523
https://doi.org/10.1103/physrevb.76.014523
Autor:
R. Kaido, Minoru Yoshida, Yuji Muraoka, Shigeki Yonezawa, Koya Arai, Zenji Hiroi, Masashi Takigawa
Publikováno v:
Physical Review Letters. 98
We report nuclear magnetic resonance studies on the beta-pyrochlore oxide superconductor KOs2O6. The nuclear relaxation at the K sites is entirely caused by fluctuations of the electric field gradient, which we ascribe to highly anharmonic low freque
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7332cb2cd2cb7b276a9925e304672dca
https://doi.org/10.1103/physrevlett.98.197002
https://doi.org/10.1103/physrevlett.98.197002