Bulletin of the American Physical Society
APS March Meeting 2020
Volume 65, Number 1
Monday–Friday, March 2–6, 2020; Denver, Colorado
Session M35: Novel Functional Magnetic Materials and Structures
11:15 AM–2:03 PM,
Wednesday, March 4, 2020
Room: 507
Sponsoring
Unit:
GMAG
Chair: Shinji Miwa, Univ of Tokyo
Abstract: M35.00010 : Atomic scale magnetic and structural imaging by achromatic electron microscopy
Presenter:
Zechao Wang
(Tsinghua University)
Authors:
Zechao Wang
(Tsinghua University)
Jing Zhu
(Tsinghua University)
Here, we show that a combination of electron energy-loss magnetic chiral dichroism (EMCD)1 and chromatic-aberration-corrected transmission electron microscopy, which can provide element-selective orbital and spin magnetic moments atomic plane by atomic plane. This unique capability, which we demonstrate for Sr2FeMoO6, opens the door to local atomic level studies of spin configurations in a multitude of materials that exhibit different types of magnetic coupling, thereby contributing to a detailed understanding of physical origins of magnetic properties of materials at the highest spatial resolution2.
[1].Schattschneider, P. et al. Detection of magnetic circular dichroism using a transmission electron microscope. Nature 441, 486–488 (2006).
[2].Zechao Wang. et al . Atomic scale imaging of magnetic circular dichroism by achromatic electron microscopy. Nature Materials. 17, 221-225 (2018).
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