Giant coercivity and spin clusters in high ...
Document type :
Article dans une revue scientifique: Article original
DOI :
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Title :
Giant coercivity and spin clusters in high pressure polymorphs of Mn2LiReO6.
Author(s) :
Solana Madruga, Elena [Auteur]
Unité de Catalyse et Chimie du Solide - UMR 8181 [UCCS]
School of Chemistry, University of Edinburgh
Universidad Complutense de Madrid = Complutense University of Madrid [Madrid] [UCM]
Ritter, Clemens [Auteur]
Institut Laue-Langevin [ILL]
Mentre, Olivier [Auteur]
Unité de Catalyse et Chimie du Solide (UCCS) - UMR 8181
Attfield, J. Paul [Auteur]
Centre for Science at Extreme Conditions [Edinburgh] [CSEC]
Arevalo Lopez, Angel [Auteur]
Unité de Catalyse et Chimie du Solide (UCCS) - UMR 8181
Unité de Catalyse et Chimie du Solide - UMR 8181 [UCCS]
School of Chemistry, University of Edinburgh
Universidad Complutense de Madrid = Complutense University of Madrid [Madrid] [UCM]
Ritter, Clemens [Auteur]
Institut Laue-Langevin [ILL]
Mentre, Olivier [Auteur]
Unité de Catalyse et Chimie du Solide (UCCS) - UMR 8181
Attfield, J. Paul [Auteur]
Centre for Science at Extreme Conditions [Edinburgh] [CSEC]
Arevalo Lopez, Angel [Auteur]
Unité de Catalyse et Chimie du Solide (UCCS) - UMR 8181
Journal title :
Journal of Materials Chemistry C
Abbreviated title :
J. Mater. Chem. C
Volume number :
-
Pages :
-
Publication date :
2022-03-17
ISSN :
2050-7526
HAL domain(s) :
Chimie/Matériaux
English abstract : [en]
We present Mn2LiReO6 synthesised at high pressure in two different polymorphs. They are the only A-site manganites with an ideal +/7+ charge distribution over the B/B′ sites. The lower pressure polymorph crystallises in a ...
Show more >We present Mn2LiReO6 synthesised at high pressure in two different polymorphs. They are the only A-site manganites with an ideal +/7+ charge distribution over the B/B′ sites. The lower pressure polymorph crystallises in a polar R3 ordered-ilmenite type structure (OIL) with a calculated 26.9 μC cm−2 electrical polarisation. It shows a cluster spin glass behaviour due to Li/Mn anti-site mixing. The well-ordered higher-pressure double-perovskite polymorph (DPv, P21/n) develops weak-ferromagnetism with giant magnetic coercivity (HC = 6.9 T at 2 K) due to magnetocrystalline anisotropy enhanced by symmetry-restricted exchange interactions but in the absence of spin–orbit coupling.Show less >
Show more >We present Mn2LiReO6 synthesised at high pressure in two different polymorphs. They are the only A-site manganites with an ideal +/7+ charge distribution over the B/B′ sites. The lower pressure polymorph crystallises in a polar R3 ordered-ilmenite type structure (OIL) with a calculated 26.9 μC cm−2 electrical polarisation. It shows a cluster spin glass behaviour due to Li/Mn anti-site mixing. The well-ordered higher-pressure double-perovskite polymorph (DPv, P21/n) develops weak-ferromagnetism with giant magnetic coercivity (HC = 6.9 T at 2 K) due to magnetocrystalline anisotropy enhanced by symmetry-restricted exchange interactions but in the absence of spin–orbit coupling.Show less >
Language :
Anglais
Audience :
Internationale
Popular science :
Non
Administrative institution(s) :
Université de Lille
CNRS
Centrale Lille
ENSCL
Univ. Artois
CNRS
Centrale Lille
ENSCL
Univ. Artois
Collections :
Submission date :
2024-01-20T00:40:20Z
2024-02-09T16:39:16Z
2024-02-09T16:39:16Z
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