Chiral structures of electric polarization vectors quantified by X-ray resonant scattering.
Kook Tae KimMargaret R McCarterVladimir A StoicaSujit DasChristoph KleweElizabeth P DonowayDavid M BurnPadraic ShaferFanny RodolakisMauro A P GonçalvesFernando Gómez-OrtizJorge ÍñiguezPablo García-FernandezJavier JunqueraSandhya SusarlaStephen W LoveseyGerrit van der LaanSe Young ParkLane W MartinJohn W FreelandRamamoorthy RameshDong Ryeol LeePublished in: Nature communications (2022)
Resonant elastic X-ray scattering (REXS) offers a unique tool to investigate solid-state systems providing spatial knowledge from diffraction combined with electronic information through the enhanced absorption process, allowing the probing of magnetic, charge, spin, and orbital degrees of spatial order together with electronic structure. A new promising application of REXS is to elucidate the chiral structure of electrical polarization emergent in a ferroelectric oxide superlattice in which the polarization vectors in the REXS amplitude are implicitly described through an anisotropic tensor corresponding to the quadrupole moment. Here, we present a detailed theoretical framework and analysis to quantitatively analyze the experimental results of Ti L-edge REXS of a polar vortex array formed in a PbTiO 3 /SrTiO 3 superlattice. Based on this theoretical framework, REXS for polar chiral structures can become a useful tool similar to x-ray resonant magnetic scattering (XRMS), enabling a comprehensive study of both electric and magnetic REXS on the chiral structures.
Keyphrases
- high resolution
- ionic liquid
- capillary electrophoresis
- mass spectrometry
- solid state
- molecularly imprinted
- dual energy
- tandem mass spectrometry
- healthcare
- electron microscopy
- room temperature
- energy transfer
- single molecule
- liquid chromatography
- magnetic resonance imaging
- health information
- magnetic resonance
- quantum dots
- solid phase extraction
- functional connectivity
- transition metal
- social media
- ms ms