Conference Presentation (Invited)

FZJ-2019-06314

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Neutron scattering on frustrated quantum magnets

Su, Y. (Corresponding author)FZJ*

2019

Abstract: An unambiguous realization of quantum spin liquid, characterized by fractionalized excitations and non-local quantum entanglement in the ground state, has yet to be achieved often due to preemptive long-range magnetic order or spin freezing at finite temperature. In this talk, I will present our recent neutron scattering studies of magnetic order and excitations mainly in frustrated rare-earth pyrochlore oxides [1-2], with the aim to search for possible experimental signatures of fractionalized excitations at finite temperature.[1] Viviane Pecanha-Antonio, et al., Phys. Rev. B 96, 214415 (2017).[2] Erxi Feng, et al. (unpublished).

Keyword(s): Magnetic Materials (1st) ; Information and Communication (1st) ; Magnetism (2nd)

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Contributing Institute(s):

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

Research Program(s):

1. 6212 - Quantum Condensed Matter: Magnetism, Superconductivity (POF3-621) (POF3-621)
2. 6G4 - Jülich Centre for Neutron Research (JCNS) (POF3-623) (POF3-623)
3. 6G15 - FRM II / MLZ (POF3-6G15) (POF3-6G15)
4. 524 - Controlling Collective States (POF3-524) (POF3-524)

Experiment(s):

1. DNS: Diffuse scattering neutron time of flight spectrometer (NL6S)
2. TOFTOF: Cold neutron time-of-flight spectrometer (NL2au)

Appears in the scientific report 2019

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