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Evidence for the Coexistence of Superconductivity and the Magnetic A-Phase in CeCu2Si2 proved by Muon Knight Shift

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http://pubman.mpdl.mpg.de/cone/persons/resource/persons126614

Geibel,  C.
Christoph Geibel, Physics of Quantum Materials, Max Planck Institute for Chemical Physics of Solids, Max Planck Society;

http://pubman.mpdl.mpg.de/cone/persons/resource/persons126861

Steglich,  F.
Frank Steglich, Physics of Quantum Materials, Max Planck Institute for Chemical Physics of Solids, Max Planck Society;

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Citation

Koda, A., Higemoto, W., Kadono, R., Kawasaki, Y., Ishida, K., Kitaoka, Y., et al. (2002). Evidence for the Coexistence of Superconductivity and the Magnetic A-Phase in CeCu2Si2 proved by Muon Knight Shift. Journal of the Physical Society of Japan, 71(6), 1427-1430. doi:10.1143/JPSJ.71.1427.


Cite as: http://hdl.handle.net/11858/00-001M-0000-0015-3149-4
Abstract
Muon spin rotation measurements under high transverse fields (HTF-ASR) have been performed on polycrystalline samples of Ce0.99Cu2.02Si2. The muon hyperfine coupling constant was determined to be -3.36 kOe/mu(B) from a Knight shift (K) vs susceptibility (chi) plot for 2 K < T < 200 K, which is comparable to those for Cu and Si nuclei. Below similar to1 K, the Knight shift at the precession signal, showing broadening due to the magnetic A-phase, exhibited a reduction at 0.5T, while it remained unchanged above 1.0 T, strongly suggesting the microscopic coexistence of superconductivity with the magnetic A-phase.