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

Author(s): Sapkota, Aashish; Tucker, Gregory S.; Ramazanoglu, Mehmet K.; Tian, Wei; Ni, Ni; et al

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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. © 2014 American Physical Society.
Publication Date: Sep-2014
Electronic Publication Date: 10-Sep-2014
Citation: 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, 90 (10), 10.1103/PhysRevB.90.100504
DOI: doi:10.1103/PhysRevB.90.100504
ISSN: 1098-0121
EISSN: 1550-235X
Pages: 90.10:100504-1 - 100504-5
Type of Material: Journal Article
Journal/Proceeding Title: Physical Review B
Version: Final published version. This is an open access article.
Notes: Physical Review B - Condensed Matter and Materials Physics. Volume 90, Issue 10, 10 September 2014, Article number 100504.

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