Wang, M.
, Luo, H.
, Wang, M.
, Chi, S.
, Rodriguez Rivera, J.
, Singh, D.
, Chang, S.
, Lynn, J.
and Dai, P.
(2011),
Magnetic Field Effect on the Static Antiferromagnetic Order and Spin Excitations in Underdoped Iron Arsenide Superconductor BaFe<sub>1.92</sub>Ni<sub>0.08</sub>As<sub>2</sub>, Physical Review B, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=907822
(Accessed October 18, 2025)
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Magnetic Field Effect on the Static Antiferromagnetic Order and Spin Excitations in Underdoped Iron Arsenide Superconductor BaFe1.92Ni0.08As2
Published
Author(s)
Miaoyin Wang, Huiqian Luo, Meng Wang, , , , , , Pengcheng Dai
Abstract
We use neutron scattering to study the magnetic field effect on the static antiferromagnetic (AF) order and low-energy spin excitations in the underdoped iron arsenide superconductor BaFe1.92Ni0.08As2. At zero field, superconductivity that occurs below Tc = 17 K coincides with application of a 10-T magnetic field in the FeAs-plane, the intensity of the resonance is reduced, accompanied by decreasing Tc and enhanced static AF scattering. These results are similar to those for some copper oxide superconductors, and demonstrate that the static AF order is a competing phase to superconductivity in BaFe1.92Ni0.08As2Citation
Physical Review B
Volume
83
Issue
9
Pub Type
Journals
Download Paper
Keywords
Iron superconductor, spin dynamics, spin resonance, field dependence, competing order parameters, neutron scattering
Citation
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Created March 13, 2011, Updated October 12, 2021