Neutron scattering investigation of the magnetic order in single crystalline BaFe2As2

Abstract

The magnetic structure of BaFe2As2 was completely determined from polycrystalline neutron diffraction measurements soon after the ThCr2Si2-type FeAs-based superconductors were discovered. Both the moment direction and the in-plane antiferromagnetic wavevector are along the longer a-axis of the orthorhombic unit cell. There is only one combined magnetostructural transition at about 140 K. However, a later single-crystal neutron diffraction work reported contradicting results. Here we show neutron diffraction results from a clean single crystal sample, grown by a self-flux method, that support the original polycrystalline work.

10 pages, 2 figures

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Cited by in corpus (11)

• Magnetism in Fe-based superconductors
• Phase Diagram of Ba1-xKxFe2As2
• Shape of spin density wave versus temperature in AFe2As2 (A=Ca, Ba, Eu): A Mössbauer study
• Phonon splitting and anomalous enhancement of infrared-active modes in BaFe${}_2$As${}_2$
• Local and collective magnetism of EuFe${}_2$As${}_2$
• Magnetic and lattice coupling in single-crystal SrFe${}_2$As${}_2$: A neutron scattering study
• Local structural variation as source of magnetic moment reduction in BaFe2As2
• Orbital Symmetry of Ba(Fe1-xCox)2As2 Superconductors Probed with X-ray Absorption Spectroscopy
• Magnetic neutron scattering studies on the Fe-based superconductor system Fe${}_{1+y}$Te${}_{1-x}$Se${}_x$
• Optical and photoemission investigation of structural and magnetic transitions in the iron-based superconductor Sr${}_{0.67}$Na${}_{0.33}$Fe${}_2$As${}_2$
• Phase diagram of the isovalent phosphorous-substituted 122-type iron pnictides