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Short-range magnetic order and planar anisotropy in the topological ferrimagnet Mn3⁢Si2⁢Te6

Journal Article · · Physical Review. B
DOI:https://doi.org/10.1103/9pq7-5svy· OSTI ID:2573219

Mn3⁢Si2⁢Te6 is a ferrimagnetic topological nodal-line semiconductor that exhibits unconventional colossal magnetoresistance behavior, with short-range spin fluctuations being potentially intimately linked to the emergent properties. Here we determine the short-range magnetic order and anisotropy through total neutron scattering and polarized neutron powder diffraction measurements on polycrystalline Mn3⁢Si2⁢Te6. Strong in-plane anisotropy is quantified on the Mn ions through extraction of the local site susceptibility tensor. Here, the real-space local spin structure is determined through the application of magnetic pair distribution function analysis covering a wide temperature range. Short-range order over a locally frustrated trimer of three nearest neighbors is found to exist well above the long-range ferrimagnetic transition.

Research Organization:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES). Materials Sciences & Engineering Division (MSE); USDOE Office of Science (SC), Basic Energy Sciences (BES). Scientific User Facilities (SUF)
Grant/Contract Number:
AC05-00OR22725
OSTI ID:
2573219
Journal Information:
Physical Review. B, Journal Name: Physical Review. B Journal Issue: 2 Vol. 112; ISSN 2469-9950; ISSN 2469-9969
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English

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