Mustonen, O.H.J. orcid.org/0000-0002-3896-9875, Pughe, C.E., Walker, H.C. et al. (4 more authors) (2020) Diamagnetic d-Orbitals drive magnetic structure selection in the double perovskite Ba2MnTeO6. Chemistry of Materials, 32 (16). pp. 7070-7079. ISSN 0897-4756
Abstract
B-site ordered A2B′B″O6 double perovskites have a variety of applications as magnetic materials. Here, we show that diamagnetic d10 and d0 B″ cations have a significant effect on the magnetic interactions in these materials. We present a neutron scattering and theoretical study of the Mn2+ double perovskite Ba2MnTeO6 with a 4d10 Te6+ cation on the B″-site. It is found to be a Type I antiferromagnet with a dominant nearest-neighbor J1 interaction. In contrast, the 5d0 W6+ analogue Ba2MnWO6 is a Type II antiferromagnet with a significant next-nearest-neighbor J2 interaction. This is due to a d10/d0 effect, where the different orbital hybridization with oxygen 2p results in different superexchange pathways. We show that d10 B″ cations promote nearest neighbor and d0 cations promote next-nearest-neighbor interactions. The d10/d0 effect could be used to tune magnetic interactions in double perovskites.
Metadata
Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 2020 American Chemical Society. | ||||
Keywords: | cond-mat.str-el; cond-mat.str-el; cond-mat.mtrl-sci | ||||
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Institution: | The University of Sheffield | ||||
Academic Units: | The University of Sheffield > Faculty of Engineering (Sheffield) > Department of Materials Science and Engineering (Sheffield) | ||||
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Depositing User: | Symplectic Sheffield | ||||
Date Deposited: | 22 Sep 2020 12:08 | ||||
Last Modified: | 22 Sep 2020 12:08 | ||||
Status: | Published | ||||
Publisher: | American Chemical Society (ACS) | ||||
Refereed: | Yes | ||||
Identification Number: | https://doi.org/10.1021/acs.chemmater.0c02971 | ||||
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