Magnetic hexamers interacting in layers ...
Document type :
Article dans une revue scientifique
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Title :
Magnetic hexamers interacting in layers in the (Na,K)2Cu3O(SO4)3 minerals
Author(s) :
Nekrasova, Diana [Auteur]
Unité de Catalyse et Chimie du Solide - UMR 8181 [UCCS]
Saint Petersburg State University [SPBU]
Tsirlin, Alexander A. [Auteur]
Colmont, Marie [Auteur]
Unité de Catalyse et Chimie du Solide (UCCS) - UMR 8181
Unité de Catalyse et Chimie du Solide - UMR 8181 [UCCS]
Siidra, Oleg [Auteur]
Vezin, Herve [Auteur]
Laboratoire Avancé de Spectroscopie pour les Intéractions la Réactivité et l'Environnement - UMR 8516 [LASIRE]
Laboratoire Avancé de Spectroscopie pour les Intéractions la Réactivité et l'Environnement (LASIRE) - UMR 8516
Mentre, Olivier [Auteur]
Unité de Catalyse et Chimie du Solide - UMR 8181 [UCCS]
Unité de Catalyse et Chimie du Solide (UCCS) - UMR 8181
Unité de Catalyse et Chimie du Solide - UMR 8181 [UCCS]
Saint Petersburg State University [SPBU]
Tsirlin, Alexander A. [Auteur]
Colmont, Marie [Auteur]

Unité de Catalyse et Chimie du Solide (UCCS) - UMR 8181
Unité de Catalyse et Chimie du Solide - UMR 8181 [UCCS]
Siidra, Oleg [Auteur]
Vezin, Herve [Auteur]

Laboratoire Avancé de Spectroscopie pour les Intéractions la Réactivité et l'Environnement - UMR 8516 [LASIRE]
Laboratoire Avancé de Spectroscopie pour les Intéractions la Réactivité et l'Environnement (LASIRE) - UMR 8516
Mentre, Olivier [Auteur]

Unité de Catalyse et Chimie du Solide - UMR 8181 [UCCS]
Unité de Catalyse et Chimie du Solide (UCCS) - UMR 8181
Journal title :
Physical Review B
Abbreviated title :
Phys. Rev. B
Volume number :
102
Pages :
184405
Publisher :
American Physical Society (APS)
Publication date :
2020-11-09
ISSN :
2469-9950
HAL domain(s) :
Chimie/Chimie théorique et/ou physique
Physique [physics]/Physique [physics]/Chimie-Physique [physics.chem-ph]
Physique [physics]/Physique [physics]/Chimie-Physique [physics.chem-ph]
English abstract : [en]
Magnetic properties and underlying magnetic models of the synthetic A2Cu3O(SO4)3 fedotovite (A = K) and puninite (A = Na) minerals, as well as the mixed euchlorine-type NaKCu3O(SO4)3 are reported. We show that all three ...
Show more >Magnetic properties and underlying magnetic models of the synthetic A2Cu3O(SO4)3 fedotovite (A = K) and puninite (A = Na) minerals, as well as the mixed euchlorine-type NaKCu3O(SO4)3 are reported. We show that all three compounds contain magnetic Cu6 hexamer units which at temperatures below about 100 K act as single spin-1 entities. Weak interactions between these magnetic molecules lead to long-range order below TN=3.4K (A = Na), 4.7 K (A = NaK), and about 3.0 K (A = K). The formation of the magnetic order is elucidated by ab initio calculations that reveal two-dimensional interhexamer interactions within crystallographic bc planes. This model indicates the presence of a weakly distorted square lattice of S=1 magnetic ions and challenges the earlier description of the A2Cu3O(SO4)3 minerals in terms of Haldane spin chains.Show less >
Show more >Magnetic properties and underlying magnetic models of the synthetic A2Cu3O(SO4)3 fedotovite (A = K) and puninite (A = Na) minerals, as well as the mixed euchlorine-type NaKCu3O(SO4)3 are reported. We show that all three compounds contain magnetic Cu6 hexamer units which at temperatures below about 100 K act as single spin-1 entities. Weak interactions between these magnetic molecules lead to long-range order below TN=3.4K (A = Na), 4.7 K (A = NaK), and about 3.0 K (A = K). The formation of the magnetic order is elucidated by ab initio calculations that reveal two-dimensional interhexamer interactions within crystallographic bc planes. This model indicates the presence of a weakly distorted square lattice of S=1 magnetic ions and challenges the earlier description of the A2Cu3O(SO4)3 minerals in terms of Haldane spin chains.Show less >
Language :
Anglais
Peer reviewed article :
Oui
Audience :
Internationale
Popular science :
Non
Administrative institution(s) :
Université de Lille
CNRS
CNRS
Collections :
Research team(s) :
Propriétés magnéto structurales des matériaux (PMSM)
Submission date :
2021-06-17T12:16:25Z
2021-06-24T10:03:10Z
2021-06-24T10:03:10Z
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