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

TitleSuppression of antiferromagnetic order and orthorhombic distortion in superconducting Ba(Fe0.961Rh0.039)(2)As-2
Publication TypeJournal Article
Year of Publication2010
AuthorsKreyssig A, Kim MG, Nandi S, Pratt DK, Tian W, Zarestky JL, Ni N, Thaler A, Bud'ko SL, Canfield PC, McQueeney RJ, Goldman AI
Journal TitlePhysical Review B
Volume81
Pages134512
Date Published04/01
ISBN Number1098-0121
Accession NumberISI:000277207900087
Abstract

Neutron-diffraction and high-resolution x-ray diffraction studies find that, similar to the closely related underdoped Ba(Fe1-xCox)(2)As-2 superconducting compounds, Ba(Fe0.961Rh0.039)(2)As-2 shows strong evidence of competition and coexistence between superconductivity and antiferromagnetic order below the superconducting transition, T-c=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 T-c. These data suggest that the strong interaction between magnetism and superconductivity is a general feature of electron-doped Ba(Fe1-xTMx)(2)As-2 superconductors (TM=transition metal).

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