Suppression of antiferromagnetic order and orthorhombic distortion in superconducting Ba(Fe0.961Rh0.039)2As2

A. Kreyssig; M. G. Kim; S. Nandi; D. K. Pratt; W. Tian; J. L. Zarestky; N. Ni; A. Thaler; S. L. Bud'ko; P. C. Canfield; R. J. McQueeney; A. I. Goldman

doi:10.1103/physrevb.81.134512

arXiv · 1002.4543

Suppression of antiferromagnetic order and orthorhombic distortion in superconducting Ba(Fe0.961Rh0.039)2As2

A. Kreyssig·M. G. Kim·S. Nandi·D. K. Pratt·W. Tian·J. L. Zarestky·N. Ni·A. Thaler·S. L. Bud'ko·P. C. Canfield·R. J. McQueeney·A. I. Goldman

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Abstract

Neutron diffraction and high-resolution x-ray diffraction studies find that, similar to the closely related underdoped Ba(Fe[1-x]Cox)2As2 superconducting compounds, Ba(Fe0.961Rh0.039)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(Fe[1-x]TMx)2As2 superconductors (TM = Transition Metal).

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A. Kreyssig, M. G. Kim, S. Nandi, D. K. Pratt, W. Tian, J. L. Zarestky, N. Ni, A. Thaler, S. L. Bud'ko, P. C. Canfield, R. J. McQueeney, A. I. Goldman. 2010-02-24. Suppression of antiferromagnetic order and orthorhombic distortion in superconducting Ba(Fe0.961Rh0.039)2As2. https://doi.org/10.1103/physrevb.81.134512

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