Abstract
Muon spin relaxation measurements in iron-oxypnictide systems have revealed: (1) commensurate long-range order in undoped LaFeAsO; (2) a Bessel function line shape in LaFeAs(O0.97F0.03) which indicates possible incommensurate or stripe magnetism; (3) anomalous weak magnetism existing in superconducting LaFePO, CeFeAs(O0.084F0.16), and NdFeAs(O0.88F0.12) but absent in superconducting LaFeAs(O0.92F0.08); and (4) scaling of the superfluid density with Tc in the Ce-, La-, and Nd-FeAs superconductors following a nearly linear relationship found in cuprates.
| Translated title of the contribution | Static Magnetic Order and Superfluid Density of RFeAsO; (R = La, Nd, Ce) and LaFePO Studied by Muon Spin Relaxation: Unusual Similarities with the Behaviour of Cuprate Superconductors |
|---|---|
| Original language | English |
| Pages (from-to) | 087001-1 - 087001-4 |
| Number of pages | 4 |
| Journal | Physical Review Letters |
| Volume | 102 |
| DOIs | |
| Publication status | Published - Feb 2009 |
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