Conference Presentation (Invited)

FZJ-2021-03514

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Neutron scattering studies of correlated topological materials

Su, Y. (Corresponding author)FZJ*

2021

Abstract: Recent theoretical predictions and experimental realizations of exotic quasi-particles and topological excitations in condensed matter have led to tremendous research interests in topological quantum materials. Especially, correlated topological materials, such as e.g. magnetic Dirac and Weyl semimetals, and intrinsic magnetic topological insulators, in which both non-trivial topology of single-electron band structures and electron-electron correlations are essential ingredients, have emerged as an exciting platform to explore novel electronic and magnetic phenomena. In this talk, I will present a couple of selected examples of our recent neutron scattering studies of correlated topological materials, including magnetic semimetals and topological magnon insulators in two-dimensional van der Waals ferromagnets.

Keyword(s): Magnetic Materials (1st) ; Magnetism (2nd) ; Condensed Matter Physics (2nd)

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Contributing Institute(s):

1. JCNS-FRM-II (JCNS-FRM-II)
2. JCNS-4 (JCNS-4)
3. Heinz Maier-Leibnitz Zentrum (MLZ)

Research Program(s):

1. 6G4 - Jülich Centre for Neutron Research (JCNS) (FZJ) (POF4-6G4) (POF4-6G4)
2. 632 - Materials – Quantum, Complex and Functional Materials (POF4-632) (POF4-632)

Experiment(s):

1. DNS: Diffuse scattering neutron time of flight spectrometer (NL6S)
2. HEiDi: Single crystal diffractometer on hot source (SR9b)
3. ILL-IN12: Cold neutron 3-axis spectrometer
4. PUMA: Thermal three axes spectrometer (SR7)

Appears in the scientific report 2021

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