This title appears in the Scientific Report :
2009
Please use the identifier:
http://dx.doi.org/10.1103/PhysRevB.79.060504 in citations.
Please use the identifier: http://hdl.handle.net/2128/11054 in citations.
Magnetic order in the CaFe1-xCoxAsF (x = 0.00, 0.06, 0.12) superconducting compounds
Magnetic order in the CaFe1-xCoxAsF (x = 0.00, 0.06, 0.12) superconducting compounds
A neutron powder-diffraction experiment has been performed to investigate the structural phase transition and magnetic order in CaFe1-xCoxAsF superconductor compounds (x=0.00,0.06,0.12). The parent compound CaFeAsF undergoes a tetragonal to orthorhombic phase transition at 134(3) K, while the magnet...
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Personal Name(s): | Xiao, Y. |
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Su, Y. / Mittal, R. / Chatterji, T. / Hansen, T. / Kumar, C. M. N. / Matsuishi, S. / Hosono, H. / Brückel, T. | |
Contributing Institute: |
JCNS; JCNS JARA-FIT; JARA-FIT Neutronenstreuung; IFF-5 Streumethoden; IFF-4 |
Published in: | Physical Review B Physical review / B, 79 79 (2009 2009) 6 6, S. 060504 060504 |
Imprint: |
College Park, Md.
APS
2009
|
Physical Description: |
060504-1 - 060504-4 |
DOI: |
10.1103/PhysRevB.79.060504 |
Document Type: |
Journal Article |
Research Program: |
Großgeräte für die Forschung mit Photonen, Neutronen und Ionen (PNI) Kondensierte Materie |
Series Title: |
Physical Review B
79 |
Subject (ZB): | |
Link: |
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Publikationsportal JuSER |
Please use the identifier: http://hdl.handle.net/2128/11054 in citations.
A neutron powder-diffraction experiment has been performed to investigate the structural phase transition and magnetic order in CaFe1-xCoxAsF superconductor compounds (x=0.00,0.06,0.12). The parent compound CaFeAsF undergoes a tetragonal to orthorhombic phase transition at 134(3) K, while the magnetic order in the form of a spin-density wave (SDW) sets in at 114(3) K. The antiferromagnetic structure of the parent compound has been determined with a unique propagation vector k=(1,0,1) and the Fe saturation moment of 0.49(5)mu(B), aligned along the long a axis. With increasing Co doping, the long-range antiferromagnetic order has been observed to coexist with superconductivity in the orthorhombic phase of the underdoped CaFe0.94Co0.06AsF with a reduced Fe moment [similar to 0.15(5)mu(B)]. Magnetic order is completely suppressed in optimally doped CaFe0.88Co0.12AsF. We argue that the coexistence of SDW and superconductivity might be related to mesoscopic phase separation. |