Imaging the magnetic structures of artificial quasicrystal magnets using resonant coherent diffraction of circularly polarized X-rays. Issue 27 (2nd July 2018)

• Record Type: Journal Article
• Authors: Sung, Daeho; Jung, Chulho; Cho, Byeong-Gwan; Jo, Wonhyuk; Han, Hee-Sung; Lee, Ki-Suk; Bhat, Vinayak; Farmer, Barry; De Long, L. E.; Lee, Ki Bong; Keavney, D. J.; Lee, Dong Ryeol; Song, Changyong
• Is Part Of: Nanoscale. Volume 10:Issue 27(2018)
• Page Start: 13159
• Page End: 13164
• Publication Date: 2018-07-02
• Subjects: Nanoscience -- Periodicals; Nanotechnology -- Periodicals; 620.505
• DOI: 10.1039/c8nr03733g
• Languages: English
• ISSNs: 2040-3364

Abstract

Abstract : Unraveling nanoscale spin structures has long been an important activity addressing various scientific interests, that are also readily adaptable to technological applications. Abstract : 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.