Magnetic order and interactions in ferrimagnetic
Abstract
The magnetism in Mn3Si2Te6 has been investigated using thermodynamic measurements, first principles calculations, neutron diffraction and diffuse neutron scattering on single crystals. These data con rm that Mn3Si2Te6 is a ferrimagnet below TC 78 K. The magnetism is anisotropic, with magnetization and neutron diffraction demonstrating that the moments lie within the basal plane of the trigonal structure. The saturation magnetization of 1.6 B/Mn at 5K originates from the different multiplicities of the two antiferromagnetically-aligned Mn sites. First principles calculations reveal antiferromagnetic exchange for the three nearest Mn-Mn pairs, which leads to a competition between the ferrimagnetic ground state and three other magnetic configurations. The ferrimagnetic state results from the energy associated with the third-nearest neighbor interaction, and thus long- range interactions are essential for the observed behavior. Di use magnetic scattering is observed around the 002 Bragg reflection at 120 K, which indicates the presence of strong spin correlations well above TC . These are promoted by the competing ground states that result in a relative suppression of TC , and may be associated with a small ferromagnetic component that produces anisotropic magnetism below ≈ 330 K.
- Authors:
-
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
- Publication Date:
- Research Org.:
- Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States). High Flux Isotope Reactor (HFIR); Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States). Spallation Neutron Source (SNS)
- Sponsoring Org.:
- USDOE Office of Science (SC), Basic Energy Sciences (BES)
- OSTI Identifier:
- 1362242
- Alternate Identifier(s):
- OSTI ID: 1372516
- Grant/Contract Number:
- AC05-00OR22725
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Physical Review B
- Additional Journal Information:
- Journal Volume: 95; Journal Issue: 17; Journal ID: ISSN 2469-9950
- Publisher:
- American Physical Society (APS)
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 36 MATERIALS SCIENCE
Citation Formats
May, Andrew F., Liu, Yaohua, Calder, Stuart, Parker, David S., Pandey, Tribhuwan, Cakmak, Ercan, Cao, Huibo, Yan, Jiaqiang, and McGuire, Michael A. Magnetic order and interactions in ferrimagnetic Mn3Si2Te6. United States: N. p., 2017.
Web. doi:10.1103/PhysRevB.95.174440.
May, Andrew F., Liu, Yaohua, Calder, Stuart, Parker, David S., Pandey, Tribhuwan, Cakmak, Ercan, Cao, Huibo, Yan, Jiaqiang, & McGuire, Michael A. Magnetic order and interactions in ferrimagnetic Mn3Si2Te6. United States. https://doi.org/10.1103/PhysRevB.95.174440
May, Andrew F., Liu, Yaohua, Calder, Stuart, Parker, David S., Pandey, Tribhuwan, Cakmak, Ercan, Cao, Huibo, Yan, Jiaqiang, and McGuire, Michael A. Mon .
"Magnetic order and interactions in ferrimagnetic Mn3Si2Te6". United States. https://doi.org/10.1103/PhysRevB.95.174440. https://www.osti.gov/servlets/purl/1362242.
@article{osti_1362242,
title = {Magnetic order and interactions in ferrimagnetic Mn3Si2Te6},
author = {May, Andrew F. and Liu, Yaohua and Calder, Stuart and Parker, David S. and Pandey, Tribhuwan and Cakmak, Ercan and Cao, Huibo and Yan, Jiaqiang and McGuire, Michael A.},
abstractNote = {The magnetism in Mn3Si2Te6 has been investigated using thermodynamic measurements, first principles calculations, neutron diffraction and diffuse neutron scattering on single crystals. These data con rm that Mn3Si2Te6 is a ferrimagnet below TC 78 K. The magnetism is anisotropic, with magnetization and neutron diffraction demonstrating that the moments lie within the basal plane of the trigonal structure. The saturation magnetization of 1.6 B/Mn at 5K originates from the different multiplicities of the two antiferromagnetically-aligned Mn sites. First principles calculations reveal antiferromagnetic exchange for the three nearest Mn-Mn pairs, which leads to a competition between the ferrimagnetic ground state and three other magnetic configurations. The ferrimagnetic state results from the energy associated with the third-nearest neighbor interaction, and thus long- range interactions are essential for the observed behavior. Di use magnetic scattering is observed around the 002 Bragg reflection at 120 K, which indicates the presence of strong spin correlations well above TC . These are promoted by the competing ground states that result in a relative suppression of TC , and may be associated with a small ferromagnetic component that produces anisotropic magnetism below ≈ 330 K.},
doi = {10.1103/PhysRevB.95.174440},
journal = {Physical Review B},
number = 17,
volume = 95,
place = {United States},
year = {Mon May 01 00:00:00 EDT 2017},
month = {Mon May 01 00:00:00 EDT 2017}
}
Web of Science
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Works referencing / citing this record:
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