NMR studies of the new superconductors AOs2O6 (A=K, Rb)

K. Arai; J. Kikuchi; K. Kodama; M. Takigawa; S. Yonezawa; Y. Muraoka; Z. Hiroi

doi:10.1016/j.physb.2005.01.123

NMR studies of the new superconductors AO_s2O₆ (A=K, Rb)

K. Arai, J. Kikuchi, K. Kodama, M. Takigawa, S. Yonezawa, Y. Muraoka, Z. Hiroi

Research output: Contribution to journal › Article › peer-review

14 Citations (Scopus)

Abstract

We report results of nuclear magnetic resonance (NMR) experiments on ³⁹K and ⁸⁷Rb nuclei in the new superconductors AOs2O6 (A=K or Rb). These compounds crystallize in the β-pyrochlore structure. In the superconducting phase, we found a small peak in 1/(T1T) for ⁸⁷Rb slightly below the superconducting transition temperature (Tc) but no peak for ³⁹K. In the normal state of KOs2O6, we observed a clear pseudogap behavior similar to what has been observed in high Tc cuprates.

Original language	English
Pages (from-to)	488-490
Number of pages	3
Journal	Physica B: Condensed Matter
Volume	359-361
Issue number	SPEC. ISS.
DOIs	https://doi.org/10.1016/j.physb.2005.01.123
Publication status	Published - Apr 30 2005
Externally published	Yes

Keywords

K-NMR
Rb-NMR
The new superconductors AOO(A=K, Rb, Cs)

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Electrical and Electronic Engineering

Access to Document

10.1016/j.physb.2005.01.123

Cite this

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title = "NMR studies of the new superconductors AOs2O6 (A=K, Rb)",

abstract = "We report results of nuclear magnetic resonance (NMR) experiments on 39K and 87Rb nuclei in the new superconductors AOs2O6 (A=K or Rb). These compounds crystallize in the β-pyrochlore structure. In the superconducting phase, we found a small peak in 1/(T1T) for 87Rb slightly below the superconducting transition temperature (Tc) but no peak for 39K. In the normal state of KOs2O6, we observed a clear pseudogap behavior similar to what has been observed in high Tc cuprates.",

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T1 - NMR studies of the new superconductors AOs2O6 (A=K, Rb)

AU - Arai, K.

AU - Kikuchi, J.

AU - Kodama, K.

AU - Takigawa, M.

AU - Yonezawa, S.

AU - Muraoka, Y.

AU - Hiroi, Z.

PY - 2005/4/30

Y1 - 2005/4/30

N2 - We report results of nuclear magnetic resonance (NMR) experiments on 39K and 87Rb nuclei in the new superconductors AOs2O6 (A=K or Rb). These compounds crystallize in the β-pyrochlore structure. In the superconducting phase, we found a small peak in 1/(T1T) for 87Rb slightly below the superconducting transition temperature (Tc) but no peak for 39K. In the normal state of KOs2O6, we observed a clear pseudogap behavior similar to what has been observed in high Tc cuprates.

AB - We report results of nuclear magnetic resonance (NMR) experiments on 39K and 87Rb nuclei in the new superconductors AOs2O6 (A=K or Rb). These compounds crystallize in the β-pyrochlore structure. In the superconducting phase, we found a small peak in 1/(T1T) for 87Rb slightly below the superconducting transition temperature (Tc) but no peak for 39K. In the normal state of KOs2O6, we observed a clear pseudogap behavior similar to what has been observed in high Tc cuprates.

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KW - Rb-NMR

KW - The new superconductors AOO(A=K, Rb, Cs)

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