Abstract
Neutron-diffraction and high-resolution x-ray diffraction studies find that, similar to the closely related underdoped Ba (Fe1-x Co x)2As2 superconducting compounds, Ba (Fe 0.961 Rh0.039)2As2 shows strong evidence of competition and coexistence between superconductivity and antiferromagnetic order below the superconducting transition, Tc =14 K. The transition temperatures for both the magnetic order and orthorhombic distortion are in excellent agreement with those inferred from resistivity measurements, and both order parameters manifest a distinct decrease in magnitude below Tc. These data suggest that the strong interaction between magnetism and superconductivity is a general feature of electron-doped Ba (Fe1-x T Mx)2 As2 superconductors (TM=transition metal).
| Original language | English |
|---|---|
| Article number | 134512 |
| Journal | Physical Review B - Condensed Matter and Materials Physics |
| Volume | 81 |
| Issue number | 13 |
| DOIs | |
| State | Published - Apr 12 2010 |
| Externally published | Yes |
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