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Title: Fragility of ferromagnetic double exchange interactions and pressure tuning of magnetism in 3d–5d double perovskite Sr₂FeOsO₆

Abstract

The ability to tune exchange (magnetic) interactions between 3d transition metals in perovskite structures has proven to be a powerful route to discovery of novel properties. Here we demonstrate that the introduction of 3d-5d exchange pathways in double perovskites enables additional tunability, a result of the large spatial extent of 5d wave functions. Using x-ray probes of magnetism and structure at high pressure, we show that compression of Sr₂FeOsO₆ drives an unexpected continuous change in the sign of Fe-Os exchange interactions and a transition from antiferromagnetic to ferrimagnetic order. We analyze the relevant electron-electron interactions, shedding light into fundamental differences with the more thoroughly studied 3d-3d systems.

Authors:
; ; ; ; ; ;
Publication Date:
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
OSTI Identifier:
1186727
Grant/Contract Number:  
FG02-03ER46097; AC02-06CH11357
Resource Type:
Journal Article: Publisher's Accepted Manuscript
Journal Name:
Physical Review. B, Condensed Matter and Materials Physics
Additional Journal Information:
Journal Name: Physical Review. B, Condensed Matter and Materials Physics Journal Volume: 91 Journal Issue: 23; Journal ID: ISSN 1098-0121
Publisher:
American Physical Society
Country of Publication:
United States
Language:
English

Citation Formats

Veiga, L. S. I., Fabbris, G., van Veenendaal, M., Souza-Neto, N. M., Feng, H. L., Yamaura, K., and Haskel, D.. Fragility of ferromagnetic double exchange interactions and pressure tuning of magnetism in 3d–5d double perovskite Sr₂FeOsO₆. United States: N. p., 2015. Web. doi:10.1103/PhysRevB.91.235135.
Veiga, L. S. I., Fabbris, G., van Veenendaal, M., Souza-Neto, N. M., Feng, H. L., Yamaura, K., & Haskel, D.. Fragility of ferromagnetic double exchange interactions and pressure tuning of magnetism in 3d–5d double perovskite Sr₂FeOsO₆. United States. doi:10.1103/PhysRevB.91.235135.
Veiga, L. S. I., Fabbris, G., van Veenendaal, M., Souza-Neto, N. M., Feng, H. L., Yamaura, K., and Haskel, D.. Fri . "Fragility of ferromagnetic double exchange interactions and pressure tuning of magnetism in 3d–5d double perovskite Sr₂FeOsO₆". United States. doi:10.1103/PhysRevB.91.235135.
@article{osti_1186727,
title = {Fragility of ferromagnetic double exchange interactions and pressure tuning of magnetism in 3d–5d double perovskite Sr₂FeOsO₆},
author = {Veiga, L. S. I. and Fabbris, G. and van Veenendaal, M. and Souza-Neto, N. M. and Feng, H. L. and Yamaura, K. and Haskel, D.},
abstractNote = {The ability to tune exchange (magnetic) interactions between 3d transition metals in perovskite structures has proven to be a powerful route to discovery of novel properties. Here we demonstrate that the introduction of 3d-5d exchange pathways in double perovskites enables additional tunability, a result of the large spatial extent of 5d wave functions. Using x-ray probes of magnetism and structure at high pressure, we show that compression of Sr₂FeOsO₆ drives an unexpected continuous change in the sign of Fe-Os exchange interactions and a transition from antiferromagnetic to ferrimagnetic order. We analyze the relevant electron-electron interactions, shedding light into fundamental differences with the more thoroughly studied 3d-3d systems.},
doi = {10.1103/PhysRevB.91.235135},
journal = {Physical Review. B, Condensed Matter and Materials Physics},
number = 23,
volume = 91,
place = {United States},
year = {Fri Jun 19 00:00:00 EDT 2015},
month = {Fri Jun 19 00:00:00 EDT 2015}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record at 10.1103/PhysRevB.91.235135

Citation Metrics:
Cited by: 9 works
Citation information provided by
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Works referenced in this record:

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