Unraveling nanoscale spin structures has long been an important activity addressing various scientific interests, that are also readily adaptable to technological applications. This has invigorated the development of versatile nanoprobes suitable for imaging specimens under native conditions. Here we have demonstrated the resonant coherent diffraction of an artificial quasicrystal magnet with circularly polarized X-rays. The nanoscale magnetic structure was revealed from X-ray speckle patterns by comparing with micromagnetic simulations, as a step toward understanding the intricate relationship between the chemical and spin structures in an aperiodic quasicrystal lattice. Femtosecond X-ray pulses from free electron lasers are expected to immediately extend the current work to nanoscale structure investigations of ultrafast spin dynamics, surpassing the present spatio-temporal resolution.
|Number of pages||6|
|State||Published - Jul 21 2018|
Bibliographical noteFunding Information:
This work was supported by the National Research Foundation of Korea (Grant No. NRF-2015R1A15A1009962, NRF-2016R1A2B3010980, NRF-2017K1A3A7A09016380 & NRF-2016K1A3A7A09005585). This research used resources of the Advanced Photon Source, a U.S. Department of Energy (DOE) Office of Science User Facility operated for the DOE Office of Science by Argonne National Laboratory under Contract No. DE-AC02-06CH11357. Research at the University of Kentucky was supported by the U.S. Department of Energy (Grant No. DE-SC0016519). We thank B.-D. Lee and J.-W. Kim at the APS for their helpful comments and discussions.
© 2018 The Royal Society of Chemistry.
ASJC Scopus subject areas
- Materials Science (all)