The magnetic form factor of iron in SrFe2As2

Abstract

The iron magnetic form factor in SrFe2As2 has been determined by neutron diffraction and by density functional theory (DFT). As noted previously, the magnitude of the calculated moment using DFT is sensitive to the Fe-As distance. However, the shape of the calculated form factor is practically insensitive to the Fe-As distance, and further we show that the form factor closely resembles that of bcc iron, and agrees well with experiment. The spin density exhibits some anisotropy due to geometry and As hybridization.

4 pages, 4 figures, accepted by PRB Rapid Communication

References in corpus (11)

• Effects of Co substitution on thermodynamic and transport properties and anisotropic $H_{c2}$ in Ba(Fe${}_{1-x}$Co${}_x$)${}_2$As${}_2$ single crystals
• The challenge of unravelling magnetic properties in LaFeAsO
• Pressure-induced volume-collapsed tetragonal phase of CaFe2As2 as seen via neutron scattering
• Structural and magnetic phase transitions in the ternary iron arsenides SrFe2As2 and EuFe2As2
• Spin and Lattice Structure of Single Crystal SrFe2As2
• Lattice collapse and quenching of magnetism in CaFe2As2 under pressure: A single crystal neutron and x-ray diffraction investigation
• Strong coupling between magnetic and structural order parameters in SrFe2As2
• Columnar magnetic structure coupled with orthorhombic distortion in the antiferromagnetic iron arsenide SrFe${}_2$As${}_2$
• Role of covalent Fe-As bonding in the magnetic moment formation and exchange mechanisms in iron-pnictide superconductors
• Magnetic and lattice coupling in single-crystal SrFe${}_2$As${}_2$: A neutron scattering study
• Magnetic and lattice coupling in single-crystal SrFe${}_2$As${}_2$: A neutron scattering study

Cited by in corpus (18)

• The Puzzle of High Temperature Superconductivity in Layered Iron Pnictides and Chalcogenides
• Symmetry of spin excitation spectra in the tetragonal paramagnetic and superconducting phases of 122-ferropnictides
• Spin fluctuations in iron pnictides and chalcogenides: From antiferromagnetism to superconductivity
• Superconductivity, Antiferromagnetism, and Neutron Scattering
• Anisotropic Neutron Spin Resonance in Superconducting BaFe${}_{1.9}$Ni${}_{0.1}$As${}_2$
• In-plane anisotropy of electrical resistivity in the strain-detwinned SrFe2As2
• Phase transitions and iron-ordered moment form factor in LaFeAsO
• Similar zone-center gaps in the low-energy spin-wave spectra of NaFeAs and BaFe2As2
• Spin reorientation and Ce-Mn coupling in antiferromagnetic oxypnictide CeMnAsO
• Structure and magnetic properties of {\it Ln}MnSbO ({\it Ln} = La and Ce) and CeMnAsO
• Magnetic structures and the Ce-Fe coupling induced Fe spin reorientation in CeFeAsO single crystal
• Magnetic form factor of SrFe${}_2$As${}_2$
• Distinct itinerant spin-density waves and local-moment antiferromagnetism in an intermetallic ErPd${}_2$Si${}_2$ single crystal
• Effect of the isoelectronic substitution of Sb for As on the magnetic and structural properties of LaFe(As1-xSbx)O
• Magnetisation distribution in the tetragonal phase of BaFe2As2
• A polarized neutron diffraction study of the field-induced magnetization in the normal and superconducting states of Ba(Fe1-xCox)2As2 (x=0.65)
• Magnetoelastic coupling and charge correlation lengths in a twin domain of Ba(Fe${}_{1-x}$Co${}_x$)${}_2$As${}_2$ ($x=0.047$): A high-resolution X-ray diffraction study
• Magnetization distribution and orbital moment in the non-Superconducting Chalcogenide Compound K0.8Fe1.6Se2