Lattice distortion and stripelike antiferromagnetic order in Ca10 (Pt3As8)(Fe2As2) 5

A. Sapkota, G. S. Tucker, M. Ramazanoglu, W. Tian, N. Ni, R. J. Cava, R. J. McQueeney, A. I. Goldman, A. Kreyssig

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Abstract

Ca10(Pt3As8)(Fe2As2)5 is the parent compound for a class of Fe-based high-temperature superconductors where superconductivity with transition temperatures up to 30 K can be introduced by partial element substitution. We present a combined high-resolution high-energy x-ray diffraction and elastic neutron scattering study on a Ca10(Pt3As8)(Fe2As2)5 single crystal. This study reveals the microscopic nature of two distinct and continuous phase transitions to be very similar to other Fe-based high-temperature superconductors: an orthorhombic distortion of the high-temperature tetragonal Fe-As lattice below TS=110(2) K followed by stripelike antiferromagnetic ordering of the Fe moments below TN=96(2) K. These findings demonstrate that major features of the Fe-based high-temperature superconductors are very robust against variations in chemical constitution as well as structural imperfection of the layers separating the Fe-As layers from each other and confirms that the Fe-As layers primarily determine the physics in this class of material.

Original languageEnglish (US)
Article number100504
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume90
Issue number10
DOIs
StatePublished - Sep 10 2014

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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    Sapkota, A., Tucker, G. S., Ramazanoglu, M., Tian, W., Ni, N., Cava, R. J., McQueeney, R. J., Goldman, A. I., & Kreyssig, A. (2014). Lattice distortion and stripelike antiferromagnetic order in Ca10 (Pt3As8)(Fe2As2) 5. Physical Review B - Condensed Matter and Materials Physics, 90(10), [100504]. https://doi.org/10.1103/PhysRevB.90.100504