This title appears in the Scientific Report :
2015
Please use the identifier:
http://hdl.handle.net/2128/8409 in citations.
Please use the identifier: http://dx.doi.org/10.1103/PhysRevB.91.064506 in citations.
Magnetic ground state of superconducting $\mathrm{Eu}\left(\mathrm{Fe}{}_{0.88}\mathrm{Ir}{}_{0.12}\right){}_{2}\mathrm{As}{}_{2}$: A combined neutron diffraction and first-principles calculation study
Magnetic ground state of superconducting $\mathrm{Eu}\left(\mathrm{Fe}{}_{0.88}\mathrm{Ir}{}_{0.12}\right){}_{2}\mathrm{As}{}_{2}$: A combined neutron diffraction and first-principles calculation study
The magnetic order of the localized Eu2+ spins in optimally doped Eu(Fe1−xIrx)2As2 (x=0.12) with superconducting transition temperature TSC=22 K was investigated by single-crystal neutron diffraction. The Eu2+ moments were found to be ferromagnetically aligned along the c direction with an ordered m...
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Personal Name(s): | Jin, W. T. (Corresponding Author) |
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Li, Wei / Su, Y. / Nandi, S. / Xiao, Y. / Jiao, W. H. / Meven, M. / Sazonov, A. P. / Feng, E. / Chen, Yan / Ting, C. S. / Cao, G. H. / Brückel, Th. | |
Contributing Institute: |
JCNS-FRM-II; JCNS-FRM-II JARA-FIT; JARA-FIT Streumethoden; PGI-4 Streumethoden; JCNS-2 |
Published in: | Physical Review B Physical review / B, 91 91 (2015 2015) 6 6, S. 064506 064506 |
Imprint: |
College Park, Md.
APS
2015
|
DOI: |
10.1103/PhysRevB.91.064506 |
Document Type: |
Journal Article |
Research Program: |
Jülich Centre for Neutron Research (JCNS) FRM II / MLZ Quantum Condensed Matter: Magnetism, Superconductivity Controlling Collective States Controlling Collective States |
Subject (ZB): | |
Link: |
OpenAccess |
Publikationsportal JuSER |
Please use the identifier: http://dx.doi.org/10.1103/PhysRevB.91.064506 in citations.
The magnetic order of the localized Eu2+ spins in optimally doped Eu(Fe1−xIrx)2As2 (x=0.12) with superconducting transition temperature TSC=22 K was investigated by single-crystal neutron diffraction. The Eu2+ moments were found to be ferromagnetically aligned along the c direction with an ordered moment of 7.0(1) μB well below the magnetic phase transition temperature TC=17 K. No evidence of the tetragonal-to-orthorhombic structural phase transition was found in this compound within the experimental uncertainty, in which the spin-density-wave (SDW) order of the Fe sublattice is supposed to be completely suppressed and the superconductivity gets fully developed. The ferromagnetic ground state of the Eu2+ spins in Eu(Fe0.88Ir0.12)2As2 was supported by the first-principles density functional calculation. In addition, comparison of the electronic structure calculations between Eu(Fe0.875Ir0.125)2As2 and the parent compound EuFe2As2 indicates stronger hybridization and more expanded bandwidth due to the Ir substitution, which together with the introduction of electrons might work against the Fe-SDW in favor of the superconductivity. |