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Publikováno v:
J. Phys. Soc. Jpn. 76, 104603 (2007)
Inelastic neutron scattering and neutron powder diffraction experiments were carried out to investigate a localized mode, proposed from various bulk measurements, in the beta-pyrochlore AOs2O6 (A=K, Rb, Cs). The localized mode was identified in all t
Externí odkaz:
http://arxiv.org/abs/0707.1366
Chemical trends of fundamental superconducting parameters and normal-state properties are described for a family of pyrochlore oxide superconductors. Particularly, the change of Tc from 1.0 K for alpha-pyrochlore Cd2Re2O7 to 3.3 K (A = Cs), 6.3 K (Rb
Externí odkaz:
http://arxiv.org/abs/cond-mat/0612682
Autor:
Hiroi, Zenji, Yonezawa, Shigeki
Publikováno v:
J. Phys. Soc. Jpn. 75 (2006) 043701
The superconducting transition of the ?-pyrochlore oxide KOs2O6 with Tc = 9.60 K is studied by resistivity measurements under various magnetic fields using a high-quality single crystal. The reentrant behavior of superconductivity is observed near Tc
Externí odkaz:
http://arxiv.org/abs/cond-mat/0602433
We report the single-crystal X-ray analysis of the structure of the pyrochlore oxide superconductor KOs$_2$O$_6$. The structure was identified as the $\beta$-pyrochlore structure with space group $Fd\bar{3}m$ and lattice constant $a$ = 10.089(2)~\AA
Externí odkaz:
http://arxiv.org/abs/cond-mat/0512683
Autor:
Hiroi, Zenji, Yonezawa, Shigeki, Yamaura, Jun-Ichi, Muramatsu, Takaki, Matsushita, Yoshitaka, Muraoka, Yuji
The magnitude of magnetic fields given in the three papers that report on the superconductivity of the beta-pyrochlore oxides is corrected.
Comment: 2 pages, 1 figure. to be published in J. Phys. Soc. Jpn
Comment: 2 pages, 1 figure. to be published in J. Phys. Soc. Jpn
Externí odkaz:
http://arxiv.org/abs/cond-mat/0510369
Resistivity and specific heat have been measured on a single crystalline sample of the beta-pyrochlore oxide superconductor, KOs2O6. It is found that a second peak in specific heat, which may evidence an unknown phase transition, appears around Tp ~
Externí odkaz:
http://arxiv.org/abs/cond-mat/0502043
Publikováno v:
J. Phys. Soc. Jpn., Vol. 74(4) (2005) 1255-1262 Vol.74 No.4, April, 2005 pp. 1255-1262
Two beta-pyrochlore oxide superconductors, CsOs2O6 and RbOs2O6, are studied thermodynamically by measuring specific heat on polycrystalline samples. It is found that a Sommerfeld coefficient ? is nearly equal, 20 mJ/K2 mol Os, in the two oxides with
Externí odkaz:
http://arxiv.org/abs/cond-mat/0501736
Publikováno v:
J. Phys. Soc. Jpn, 73(10) (2004)
Recently new pyrochlore oxides superconductors AOs2O6 (A=K,Rb,Cs) were found and we measured the pressure dependence of magnetization up to 1.2 GPa in order to deduce the pressure effect of Tc in the three beta-pyrochlore oxides. It is found that the
Externí odkaz:
http://arxiv.org/abs/cond-mat/0407610
The discovery of a new beta-pyrochlore oxide superconductor CsOs2O6 with Tc = 3.3 K is reported. It is the third superconductor in the family of beta-pyrochlore oxides, following KOs2O6 with Tc = 9.6 K and RbOs2O6 with Tc = 6.3 K. The Tc of this seri
Externí odkaz:
http://arxiv.org/abs/cond-mat/0404220