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001     890115
005     20240529111654.0
037 _ _ |a FZJ-2021-00704
041 _ _ |a English
100 1 _ |a Nandi, Shibabrata
|0 P:(DE-Juel1)177779
|b 0
|e Corresponding author
111 2 _ |a Seminar RWTH Aachen "Umhabilitation"
|c ZOOM online meeting
|d 2021-01-27 - 2021-01-27
|w ZOOM online meeting
245 _ _ |a Structure, magnetism, and superconductivity in Fe-based superconductors
|f 2021-01-27 -
260 _ _ |c 2021
336 7 _ |a Conference Paper
|0 33
|2 EndNote
336 7 _ |a Other
|2 DataCite
336 7 _ |a INPROCEEDINGS
|2 BibTeX
336 7 _ |a LECTURE_SPEECH
|2 ORCID
336 7 _ |a Talk (non-conference)
|b talk
|m talk
|0 PUB:(DE-HGF)31
|s 1635343982_12706
|2 PUB:(DE-HGF)
|x Invited
336 7 _ |a Other
|2 DINI
520 _ _ |a In iron-based high-temperature superconductors, magnetic fluctuations and magneto-elastic effects are believed to be important for the superconducting electron pairing mechanism. To gain insight into the interplay between the different ordering phenomena and the underlying couplings we studied the magnetic order and lattice distortion on AFe2As2 (A = Ca, Sr, Ba, Eu) single crystals by neutron and x-ray diffraction. High-resolution x-ray diffraction and neutron scattering measurements reveal an unusually strong response of the lattice and ordered magnetic moment to superconductivity in Co-doped BaFe2As2. We propose that the coupling between lattice and superconductivity is indirect and arises due to the magnetoelastic coupling, in the form of emergent nematic order, and the strong competition between the magnetism and superconductivity. In contrast to the coexistence of superconductivity and antiferromagnetism in the Co-doped “122” sample, we show that the superconductivity and ferromagnetism coexist in the P-doped Eu based “122” Fe-pnictides. Coexistence between these two antagonistic phenomena are puzzling but can be explained in terms of the formation of a spontaneous vortex state.
536 _ _ |a 6G4 - Jülich Centre for Neutron Research (JCNS) (POF3-623)
|0 G:(DE-HGF)POF3-6G4
|c POF3-623
|f POF III
|x 0
536 _ _ |a 632 - Materials – Quantum, Complex and Functional Materials (POF4-632)
|0 G:(DE-HGF)POF4-632
|c POF4-632
|f POF IV
|x 1
909 C O |o oai:juser.fz-juelich.de:890115
|p VDB
910 1 _ |a Forschungszentrum Jülich
|0 I:(DE-588b)5008462-8
|k FZJ
|b 0
|6 P:(DE-Juel1)177779
913 0 _ |a DE-HGF
|b Forschungsbereich Materie
|l Von Materie zu Materialien und Leben
|1 G:(DE-HGF)POF3-620
|0 G:(DE-HGF)POF3-623
|3 G:(DE-HGF)POF3
|2 G:(DE-HGF)POF3-600
|4 G:(DE-HGF)POF
|v Facility topic: Neutrons for Research on Condensed Matter
|9 G:(DE-HGF)POF3-6G4
|x 0
913 1 _ |a DE-HGF
|b Forschungsbereich Materie
|l From Matter to Materials and Life
|1 G:(DE-HGF)POF4-630
|0 G:(DE-HGF)POF4-632
|3 G:(DE-HGF)POF4
|2 G:(DE-HGF)POF4-600
|4 G:(DE-HGF)POF
|v Materials – Quantum, Complex and Functional Materials
|x 0
914 1 _ |y 2021
920 1 _ |0 I:(DE-Juel1)JCNS-2-20110106
|k JCNS-2
|l Streumethoden
|x 0
920 1 _ |0 I:(DE-Juel1)PGI-4-20110106
|k PGI-4
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920 1 _ |0 I:(DE-82)080009_20140620
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|x 2
980 _ _ |a talk
980 _ _ |a VDB
980 _ _ |a I:(DE-Juel1)JCNS-2-20110106
980 _ _ |a I:(DE-Juel1)PGI-4-20110106
980 _ _ |a I:(DE-82)080009_20140620
980 _ _ |a UNRESTRICTED
981 _ _ |a I:(DE-Juel1)JCNS-2-20110106

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