Abstract
The magnetic ground state of an electron-doped cuprate superconductor, Pr 1-xLaCe xCuO 4+α-δ (x = 0.11, α ≃ 0.04), has been studied by means of muon spin rotation/relaxation (μSR) over a wide variety of oxygen depletion, 0.03 ≤ δ ≤ 0.12. The appearance of a weak random magnetism over the entire crystal volume has been revealed by a slow exponential relaxation. The absence of δ-dependence for random magnetism and a multiplet pattern of the muon Knight shift at higher fields strongly suggest that the random moments are associated with excited Pr 3+ ions under a crystal electric field.
Original language | English |
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Pages (from-to) | 2955-2958 |
Number of pages | 4 |
Journal | journal of the physical society of japan |
Volume | 72 |
Issue number | 11 |
DOIs | |
Publication status | Published - 2003 Nov |
Externally published | Yes |
Keywords
- Crystal electric field
- Cuprates
- Superconductivity
- μSR
ASJC Scopus subject areas
- Physics and Astronomy(all)