Zobrazeno 1 - 10
of 39
pro vyhledávání: '"Kos, P. O."'
Autor:
Terashima, Taichi, Kurita, Nobuyuki, Kiswandhi, Andhika, Choi, Eun-Sang, Brooks, James S., Sato, Kota, Yamaura, Jun-ichi, Hiroi, Zenji, Harima, Hisatomo, Uji, Shinya
Publikováno v:
Phys. Rev. B 85, 180503(R) (2012) [5 pages]
We have determined the Fermi surface in KOs$_2$O$_6$ ($T_c$ = 9.6 K and $B_{c2} \sim$ 32 T) via de Haas-van Alphen (dHvA) oscillation measurements and a band structure calculation. We find effective masses up to 26(1) $m_e$ ($m_e$ is the free electro
Externí odkaz:
http://arxiv.org/abs/1201.5425
Upper critical field and de Haas-van Alphen oscillations in KOs$_2$O$_6$ measured in a hybrid magnet
Autor:
Terashima, Taichi, Kurita, Nobuyuki, Harada, Atsushi, Kodama, Kota, Yamaura, Jun-ichi, Hiroi, Zenji, Harima, Hisatomo, Uji, Shinya
Publikováno v:
J. Phys. Soc. Jpn. 79 (2010) 083703
Magnetic torque measurements have been performed on a KOs$_2$O$_6$ single crystal in magnetic fields up to 35.3 T and at temperatures down to 0.6 K. The upper critical field is determined to be $\sim$30 T. De Haas-van Alphen oscillations are observed
Externí odkaz:
http://arxiv.org/abs/1005.3089
Autor:
Shibauchi, T., Krusin-Elbaum, L., Kasahara, Y., Shimono, Y., Matsuda, Y., McDonald, R. D., Mielke, C. H., Yonezawa, S., Hiroi, Z., Arai, M., Kita, T., Blatter, G., Sigrist, M.
Publikováno v:
Phys. Rev. B 74, 220506(R) (2006)
The entire temperature dependence of the upper critical field $H_{\rm c2}$ in the $\beta$-pyrochlore KOs$_2$O$_6$ is obtained from high-field resistivity and magnetic measurements. Both techniques identically give $H_{\rm c2}(T \simeq 0 {\rm K})$ not
Externí odkaz:
http://arxiv.org/abs/cond-mat/0603309
Publikováno v:
New Jour. Phys. 11, 055068 (2009), [Special issue on Superconductors with Exotic Symmetries]
We study the influence of the rattling phonons on superconductivity in $\beta$-pyrochlore KOs$_{2}$O$_{6}$ compound based on the strong-coupling Eliashberg approach. In particular, analyzing the specific heat data we find that the rattling phonon fre
Externí odkaz:
http://arxiv.org/abs/0803.2491
Publikováno v:
Physical Review B 70, 174510, 2004
Electronic, magnetic, and dynamical properties of the new superconducting $\beta$-pyrochlore KOs$_2$O$_6$ and related RbOs$_2$O$_6$ and CsOs$_2$O$_6$ compounds are calculated and compared with experiment and contrasted with structurally related spine
Externí odkaz:
http://arxiv.org/abs/cond-mat/0412031
Autor:
Koda, A., Higemoto, W., Ohishi, K., Saha, S. R., Kadono, R., Yonezawa, S., Muraoka, Y., Hiroi, Z.
Publikováno v:
J. Phys. Soc. Jpn. 74, 1678-1681 (2005)
Magnetic penetration depth ($\lambda$) in a pyrochlore superconductor KOs$_2$O$_6$ was studied by means of muon spin rotation (\msr). The temperature dependence of transverse spin relaxation rate, which is proportional to $\lambda ^{-2}$, exhibits a
Externí odkaz:
http://arxiv.org/abs/cond-mat/0402400
Autor:
Shimono, Y., Shibauchi, T., Kasahara, Y., Kato, T., Hashimoto, K., Matsuda, Y., Yamaura, J., Nagao, Y., Hiroi, Z.
Publikováno v:
Phys. Rev. Lett. 98, 257004 (2007).
Microwave penetration depth $\lambda$ and surface resistance at 27 GHz are measured in high quality crystals of KOs$_2$O$_6$. Firm evidence for fully-gapped superconductivity is provided from $\lambda(T)$. Below the second transition at $T_{\rm p}\si
Externí odkaz:
http://arxiv.org/abs/0705.2615
We report the single-crystal X-ray analysis of the structure of the pyrochlore oxide superconductor KOs$_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
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